24AA128/24LC128/24FC128 2 128K I C™ CMOS Serial EEPROM Device Selection Table • Temperature Ranges: - Industrial (I): -40C to +85C Part VCC Max. Clock Temp. - Automotive (E): -40C to +125C Number Range Frequency Ranges 24AA128 1.7-5.5V 400kHz(1) I Description: 24LC128 2.5-5.5V 400kHz I, E The Microchip Technology Inc. 24AA128/24LC128/ 24FC128 1.7-5.5V 1MHz(2) I 24FC128 (24XX128*) is a 16K x 8 (128 Kbit) Serial Note 1: 100kHz for VCC < 2.5V. Electrically Erasable PROM (EEPROM), capable of 2: 400kHz for VCC < 2.5V. operation across a broad voltage range (1.7V to 5.5V). It has been developed for advanced, low-power Features: applications such as personal communications or data acquisition. This device also has a page write capabil- • Single Supply with Operation down to 1.7V for ity of up to 64 bytes of data. This device is capable of 24AA128/24FC128 devices, 2.5V for 24LC128 both random and sequential reads up to the 128K Devices boundary. Functional address lines allow up to eight • Low-Power CMOS Technology: devices on the same bus, for up to 1Mbit address - Write current 3 mA, typical space. This device is available in the standard 8-pin - Standby current 100 nA, typical plastic DIP, SOIC (3.90 mm and 5.28 mm), TSSOP, • 2-Wire Serial Interface, I2C™ Compatible MSOP, DFN, TDFN and Chip Scale packages. • Cascadable up to Eight Devices Block Diagram • Schmitt Trigger Inputs for Noise Suppression A0A1A2WP HV Generator • Output Slope Control to Eliminate Ground Bounce • 100 kHz and 400 kHz Clock Compatibility • 1 MHz Clock for FC Versions I/O Memory EEPROM • Page Write Time 5 ms, typical Control Control XDEC Array Logic Logic • Self-Timed Erase/Write Cycle Page Latches • 64-Byte Page Write Buffer • Hardware Write-Protect I/O SCL • ESD Protection >4000V YDEC • More than 1 Million Erase/Write Cycles SDA • Data Retention > 200 years • Factory Programming Available VCC • Packages include 8-lead PDIP, SOIC, TSSOP, VSS Sense Amp. R/W Control DFN, TDFN, MSOP, and Chip Scale Packages • Pb-Free and RoHS Compliant *24XX128 is used in this document as a generic part number for the 24AA128/24LC128/24FC128 devices. Package Types PDIP/SOIC TSSOP/MSOP1 DFN/TDFN CS (Chip Scale)2 A0 1 8 VCC A0 1 8 VCC A0 1 8 VCC VCC A1 A0 VAAS12S 234 24XX128 765 WSSCDPLA VAAS12S 234 24XX128 765 WSSCDPLA VAAS12S 432 24XX128 567 WSSCDPLA WP SD16A4S27CL5 38VSS A2 (TOP DOWN VIEW, BALLS NOT VISIBLE) Note 1: Pins A0 and A1 are no-connects for the MSOP package only. 2: Available in I-temp, “AA” only.  2010 Microchip Technology Inc. DS21191S-page 1

24AA128/24LC128/24FC128 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings(†) VCC.............................................................................................................................................................................6.5V All inputs and outputs w.r.t. VSS.........................................................................................................-0.6V to VCC +1.0V Storage temperature...............................................................................................................................-65°C to +150°C Ambient temperature with power applied................................................................................................-40°C to +125°C ESD protection on all pins 4kV † NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. TABLE 1-1: DC CHARACTERISTICS Electrical Characteristics: DC CHARACTERISTICS Industrial (I): VCC = +1.7V to 5.5V TA = -40°C to +85°C Automotive (E): VCC = +2.5V to 5.5V TA = -40°C to 125°C Param. Sym. Characteristic Min. Max. Units Conditions No. — A0, A1, A2, SCL, SDA and — — — — WP pins: D1 VIH High-level input voltage 0.7 VCC — V — D2 VIL Low-level input voltage — 0.3 VCC V VCC 2.5V 0.2 VCC V VCC < 2.5V D3 VHYS Hysteresis of Schmitt Trigger 0.05 VCC — V VCC  2.5V (Note1) inputs (SDA, SCL pins) D4 VOL Low-level output voltage — 0.40 V IOL = 3.0mA @ VCC = 4.5V IOL = 2.1mA @ VCC = 2.5V D5 ILI Input leakage current — ±1 A VIN = VSS or VCC, WP = VSS VIN = VSS or VCC, WP = VCC D6 ILO Output leakage current — ±1 A VOUT = VSS or VCC D7 CIN, Pin capacitance — 10 pF VCC = 5.0V (Note1) COUT (all inputs/outputs) TA = 25°C, FCLK = 1MHz D8 ICC Read Operating current — 400 A VCC = 5.5V, SCL = 400kHz ICC Write — 3 mA VCC = 5.5V D9 ICCS Standby current — 1 A TA = -40°C to +85°C SCL = SDA = VCC = 5.5V A0, A1, A2, WP = VSS — 5 A TA = -40°C to 125°C SCL = SDA = VCC = 5.5V A0, A1, A2, WP = VSS Note 1: This parameter is periodically sampled and not 100% tested. DS21191S-page 2  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 TABLE 1-2: AC CHARACTERISTICS Electrical Characteristics: AC CHARACTERISTICS Industrial (I): VCC = +1.7V to 5.5V TA = -40°C to +85°C Automotive (E): VCC = +2.5V to 5.5V TA = -40°C to 125°C Param. Sym. Characteristic Min. Max. Units Conditions No. 1 FCLK Clock frequency — 100 kHz 1.7V  VCC  2.5V — 400 2.5V  VCC  5.5V — 400 1.7V  VCC  2.5V 24FC128 — 1000 2.5V  VCC  5.5V 24FC128 2 THIGH Clock high time 4000 — ns 1.7V  VCC  2.5V 600 — 2.5V  VCC  5.5V 600 — 1.7V  VCC  2.5V 24FC128 500 — 2.5V  VCC  5.5V 24FC128 3 TLOW Clock low time 4700 — ns 1.7V  VCC  2.5V 1300 — 2.5V  VCC  5.5V 1300 — 1.7V  VCC  2.5V 24FC128 500 — 2.5V  VCC  5.5V 24FC128 4 TR SDA and SCL rise time — 1000 ns 1.7V  VCC  2.5V (Note1) — 300 2.5V  VCC  5.5V — 300 1.7V  VCC  5.5V 24FC128 5 TF SDA and SCL fall time — 300 ns All except, 24FC128 (Note1) — 100 1.7V  VCC  5.5V 24FC128 6 THD:STA Start condition hold time 4000 — ns 1.7V  VCC  2.5V 600 — 2.5V  VCC  5.5V 600 — 1.7V  VCC  2.5V 24FC128 250 — 2.5V  VCC  5.5V 24FC128 7 TSU:STA Start condition setup time 4700 — ns 1.7V  VCC  2.5V 600 — 2.5V  VCC  5.5V 600 — 1.7V  VCC  2.5V 24FC128 250 — 2.5V  VCC  5.5V 24FC128 8 THD:DAT Data input hold time 0 — ns (Note2) 9 TSU:DAT Data input setup time 250 — ns 1.7V  VCC  2.5V 100 — 2.5V  VCC  5.5V 100 — 1.7V  VCC  5.5V 24FC128 10 TSU:STO Stop condition setup time 4000 — ns 1.7V  VCC  2.5V 600 — 2.5V  VCC  5.5V 600 — 1.7V  VCC  2.5V 24FC128 250 — 2.5V  VCC  5.5V 24FC128 11 TSU:WP WP setup time 4000 — ns 1.7V  VCC  2.5V 600 — 2.5V  VCC  5.5V 600 — 1.7V  VCC  5.5V 24FC128 12 THD:WP WP hold time 4700 — ns 1.7V  VCC  2.5V 1300 — 2.5V  VCC  5.5V 1300 — 1.7V  VCC  5.5V 24FC128 Note 1: Not 100% tested. CB = total capacitance of one bus line in pF. 2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum 300ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions. 3: The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved noise spike suppression. This eliminates the need for a TI specification for standard operation. 4: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model, which can be obtained from Microchip’s web site at www.microchip.com.  2010 Microchip Technology Inc. DS21191S-page 3

24AA128/24LC128/24FC128 TABLE 1-2: AC CHARACTERISTICS (CONTINUED) Electrical Characteristics: AC CHARACTERISTICS Industrial (I): VCC = +1.7V to 5.5V TA = -40°C to +85°C Automotive (E): VCC = +2.5V to 5.5V TA = -40°C to 125°C Param. Sym. Characteristic Min. Max. Units Conditions No. 13 TAA Output valid from clock — 3500 ns 1.7V  VCC  2.5V (Note2) — 900 2.5V  VCC  5.5V — 900 1.7V  VCC  2.5V 24FC128 — 400 2.5V  VCC  5.5V 24FC128 14 TBUF Bus free time: Time the bus 4700 — ns 1.7V  VCC  2.5V must be free before a new 1300 — 2.5V  VCC  5.5V transmission can start 1300 — 1.7V  VCC  2.5V 24FC128 500 — 2.5V  VCC  5.5V 24FC128 15 TOF Output fall time from VIH 10 + 0.1CB 250 ns All except, 24FC128 (Note1) minimum to VIL maximum 250 24FC128 (Note1) CB  100pF 16 TSP Input filter spike suppression — 50 ns All except, 24FC128 (Notes1 (SDA and SCL pins) and3) 17 TWC Write cycle time (byte or — 5 ms — page) 18 — Endurance 1,000,000 — cycles Page Mode, 25°C, 5.5V (Note4) Note 1: Not 100% tested. CB = total capacitance of one bus line in pF. 2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum 300ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions. 3: The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved noise spike suppression. This eliminates the need for a TI specification for standard operation. 4: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model, which can be obtained from Microchip’s web site at www.microchip.com. FIGURE 1-1: BUS TIMING DATA 5 4 2 D3 SCL 7 3 8 9 10 SDA 6 IN 16 13 14 SDA OUT (protected) WP 11 12 (unprotected) DS21191S-page 4  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table2-1. TABLE 2-1: PIN FUNCTION TABLE Name PDIP SOIC TSSOP MSOP DFN(1) TDFN(1) CS Function A0 1 1 1 — 1 1 3 User Configurable Chip Select A1 2 2 2 — 2 2 2 User Configurable Chip Select (NC) — — — 1, 2 — — — Not Connected A2 3 3 3 3 3 3 5 User Configurable Chip Select VSS 4 4 4 4 4 4 8 Ground SDA 5 5 5 5 5 5 6 Serial Data SCL 6 6 6 6 6 6 7 Serial Clock WP 7 7 7 7 7 7 4 Write-Protect Input VCC 8 8 8 8 8 8 1 +1.7V to 5.5V (24AA128) +2.5V to 5.5V (24LC128) +1.7V to 5.5V (24FC128) Note 1: The exposed pad on the DFN/TDFN package can be connected to VSS or left floating. 2.1 A0, A1, A2 Chip Address Inputs 2.3 Serial Clock (SCL) The A0, A1 and A2 inputs are used by the 24XX128 for This input is used to synchronize the data transfer to multiple device operations. The levels on these inputs and from the device. are compared with the corresponding bits in the slave address. The chip is selected if the compare is true. 2.4 Write-Protect (WP) For the MSOP package only, pins A0 and A1 are not This pin must be connected to either VSS or VCC. If tied connected. to VSS, write operations are enabled. If tied to VCC, Up to eight devices (two for the MSOP package) may write operations are inhibited but read operations are be connected to the same bus by using different Chip not affected. Select bit combinations. These inputs must be connected to either VCC or VSS. 3.0 FUNCTIONAL DESCRIPTION In most applications, the chip address inputs A0, A1 The 24XX128 supports a bidirectional 2-wire bus and and A2 are hard-wired to logic ‘0’ or logic ‘1’. For data transmission protocol. A device that sends data applications in which these pins are controlled by a onto the bus is defined as a transmitter and a device microcontroller or other programmable device, the chip receiving data as a receiver. The bus must be address pins must be driven to logic ‘0’ or logic ‘1’ controlled by a master device which generates the before normal device operation can proceed. Serial Clock (SCL), controls the bus access and 2.2 Serial Data (SDA) generates the Start and Stop conditions while the 24XX128 works as a slave. Both master and slave can This is a bidirectional pin used to transfer addresses operate as a transmitter or receiver, but the master and data into and out of the device. It is an open drain device determines which mode is activated. terminal. Therefore, the SDA bus requires a pull-up resistor to VCC (typical 10k for 100kHz, 2kfor 400kHz and 1MHz). For normal data transfer, SDA is allowed to change only during SCL low. Changes during SCL high are reserved for indicating the Start and Stop conditions.  2010 Microchip Technology Inc. DS21191S-page 5

24AA128/24LC128/24FC128 4.0 BUS CHARACTERISTICS The data on the line must be changed during the low period of the clock signal. There is one bit of data per The following bus protocol has been defined: clock pulse. • Data transfer may be initiated only when the bus Each data transfer is initiated with a Start condition and is not busy. terminated with a Stop condition. The number of the • During data transfer, the data line must remain data bytes transferred between the Start and Stop stable whenever the clock line is high. Changes in conditions is determined by the master device. the data line while the clock line is high will be interpreted as a Start or Stop condition. 4.5 Acknowledge Accordingly, the following bus conditions have been Each receiving device, when addressed, is obliged to defined (Figure4-1). generate an Acknowledge signal after the reception of each byte. The master device must generate an extra 4.1 Bus Not Busy (A) clock pulse, which is associated with this Acknowledge bit. Both data and clock lines remain high. Note: The 24XX128 does not generate any 4.2 Start Data Transfer (B) Acknowledge bits if an internal A high-to-low transition of the SDA line while the clock programming cycle is in progress. (SCL) is high determines a Start condition. All A device that acknowledges must pull down the SDA commands must be preceded by a Start condition. line during the acknowledge clock pulse in such a way that the SDA line is stable low during the high period of 4.3 Stop Data Transfer (C) the acknowledge related clock pulse. Of course, setup A low-to-high transition of the SDA line, while the clock and hold times must be taken into account. During (SCL) is high, determines a Stop condition. All reads, a master must signal an end of data to the slave operations must end with a Stop condition. by NOT generating an Acknowledge bit on the last byte that has been clocked out of the slave. In this case, the 4.4 Data Valid (D) slave (24XX128) will leave the data line high to enable the master to generate the Stop condition. The state of the data line represents valid data when, after a Start condition, the data line is stable for the duration of the high period of the clock signal. FIGURE 4-1: DATA TRANSFER SEQUENCE ON THE SERIAL BUS (A) (B) (D) (D) (C) (A) SCL SDA Start Address or Data Stop Condition Acknowledge Allowed Condition Valid to Change FIGURE 4-2: ACKNOWLEDGE TIMING Acknowledge Bit SCL 1 2 3 4 5 6 7 8 9 1 2 3 SDA Data from transmitter Data from transmitter Transmitter must release the SDA line at this point, Receiver must release the SDA line allowing the Receiver to pull the SDA line low to at this point so the Transmitter can acknowledge the previous eight bits of data. continue sending data. DS21191S-page 6  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 5.0 DEVICE ADDRESSING FIGURE 5-1: CONTROL BYTE FORMAT A control byte is the first byte received following the Start condition from the master device (Figure5-1). Read/Write Bit The control byte consists of a 4-bit control code. For the 24XX128, this is set as ‘1010’ binary for read and write Chip Select operations. The next three bits of the control byte are Control Code Bits the Chip Select bits (A2, A1, A0). The Chip Select bits allow the use of up to eight 24XX128 devices on the S 1 0 1 0 A2 A1 A0 R/W ACK same bus and are used to select which device is accessed. The Chip Select bits in the control byte must Slave Address correspond to the logic levels on the corresponding A2, A1 and A0 pins for the device to respond. These bits Start Bit Acknowledge Bit are, in effect, the three Most Significant bits of the word address. 5.1 Contiguous Addressing Across For the MSOP package, the A0 and A1 pins are not connected. During device addressing, the A0 and A1 Multiple Devices Chip Select bits (Figures5-1 and 5-2) should be set to The Chip Select bits A2, A1 and A0 can be used to ‘0’. Only two 24XX128 MSOP packages can be expand the contiguous address space for up to 1Mbit connected to the same bus. by adding up to eight 24XX128 devices on the same The last bit of the control byte defines the operation to bus. In this case, software can use A0 of the control be performed. When set to a one, a read operation is byte as address bit A14; A1 as address bit A15; and A2 selected. When set to a zero, a write operation is as address bit A16. It is not possible to sequentially selected. The next two bytes received define the read across device boundaries. address of the first data byte (Figure5-2). Because For the MSOP package, up to two 24XX128 devices only A13…A0 are used, the upper two address bits are can be added for up to 256Kbit of address space. In “don’t care” bits. The upper address bits are transferred this case, software can use A2 of the control byte as first, followed by the Less Significant bits. address bit A16. Bits A0 (A14) and A1 (A15) of the Following the Start condition, the 24XX128 monitors control byte must always be set to logic ‘0’ for the the SDA bus checking the device type identifier being MSOP. transmitted. Upon receiving a ‘1010’ code and appropriate device select bits, the slave device outputs an Acknowledge signal on the SDA line. Depending on the state of the R/W bit, the 24XX128 will select a read or write operation. FIGURE 5-2: ADDRESS SEQUENCE BIT ASSIGNMENTS Control Byte Address High Byte Address Low Byte A A A A A A A A A A A 1 0 1 0 2 1 0 R/W x x 13 12 11 10 9 8 7 • • • • • • 0 Control Chip x = “don’t care” bit Code Select Bits  2010 Microchip Technology Inc. DS21191S-page 7

24AA128/24LC128/24FC128 6.0 WRITE OPERATIONS 6.3 Write Protection The WP pin allows the user to write-protect the entire 6.1 Byte Write array (0000-3FFF) when the pin is tied to VCC. If tied to Following the Start condition from the master, the VSS the write protection is disabled. The WP pin is control code (four bits), the Chip Select (three bits) and sampled at the Stop bit for every Write command the R/W bit (which is a logic low) are clocked onto the (Figure1-1). Toggling the WP pin after the Stop bit will bus by the master transmitter. This indicates to the have no effect on the execution of the write cycle. addressed slave receiver that the address high byte will follow after it has generated an Acknowledge bit during Note: Page write operations are limited to the ninth clock cycle. Therefore, the next byte writing bytes within a single physical transmitted by the master is the high-order byte of the page, regardless of the number of word address and will be written into the Address bytes actually being written. Physical Pointer of the 24XX128. The next byte is the Least page boundaries start at addresses Significant Address Byte. After receiving another that are integer multiples of the page Acknowledge signal from the 24XX128, the master buffer size (or ‘page size’) and end at device will transmit the data word to be written into the addresses that are integer multiples of addressed memory location. The 24XX128 acknowl- [page size – 1]. If a Page Write edges again and the master generates a Stop command attempts to write across a condition. This initiates the internal write cycle and physical page boundary, the result is during this time, the 24XX128 will not generate that the data wraps around to the Acknowledge signals (Figure6-1). If an attempt is beginning of the current page (over- made to write to the array with the WP pin held high, the writing data previously stored there), device will acknowledge the command, but no write instead of being written to the next cycle will occur, no data will be written, and the device page, as might be expected. It is, will immediately accept a new command. After a byte therefore, necessary for the applica- Write command, the internal address counter will point tion software to prevent page write to the address location following the one that was just operations that would attempt to cross written. a page boundary. Note: When doing a write of less than 64 bytes the data in the rest of the page is refreshed along with the data bytes being written. This will force the entire page to endure a write cycle, for this reason endurance is specified per page. 6.2 Page Write The write control byte, word address, and the first data byte are transmitted to the 24XX128 in much the same way as in a byte write. The exception is that instead of generating a Stop condition, the master transmits up to 63 additional bytes, which are temporarily stored in the on-chip page buffer, and will be written into memory once the master has transmitted a Stop condition. Upon receipt of each word, the six lower Address Pointer bits are internally incremented by ‘1’. If the master should transmit more than 64 bytes prior to generating the Stop condition, the address counter will roll over and the previously received data will be over- written. As with the byte write operation, once the Stop condition is received, an internal write cycle will begin (Figure6-2). If an attempt is made to write to the array with the WP pin held high, the device will acknowledge the command, but no write cycle will occur, no data will be written and the device will immediately accept a new command. DS21191S-page 8  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 FIGURE 6-1: BYTE WRITE S Bus Activity T Control Address Address S Master A T R Byte High Byte Low Byte Data O T P SDA Line S1010A2A1A0 0 xx P Bus Activity A A A A C C C C x = “don’t care” bit K K K K FIGURE 6-2: PAGE WRITE S T Control Address Address S BMuass tAecrtivity AR Byte High Byte Low Byte Data Byte 0 Data Byte 63 TO T P SDA Line S1010A2A1A00 xx P A A A A A Bus Activity C C C C C K K K K K x = “don’t care” bit 7.0 ACKNOWLEDGE POLLING FIGURE 7-1: ACKNOWLEDGE POLLING FLOW Since the device will not acknowledge during a write cycle, this can be used to determine when the cycle is complete (This feature can be used to maximize bus throughput). Once the Stop condition for a Write Send command has been issued from the master, the device Write Command initiates the internally timed write cycle. ACK polling can be initiated immediately. This involves the master sending a Start condition, followed by the control byte Send Stop for a Write command (R/W = 0). If the device is still Condition to busy with the write cycle, then no ACK will be returned. Initiate Write Cycle If no ACK is returned, the Start bit and control byte must be resent. If the cycle is complete, then the device will return the ACK and the master can then proceed with the next Read or Write command. See Figure7-1 for Send Start flow diagram. Send Control Byte with R/W = 0 Did Device No Acknowledge (ACK = 0)? Yes Next Operation  2010 Microchip Technology Inc. DS21191S-page 9

24AA128/24LC128/24FC128 8.0 READ OPERATION 8.2 Random Read Read operations are initiated in much the same way as Random read operations allow the master to access write operations with the exception that the R/W bit of any memory location in a random manner. To perform the control byte is set to ‘1’. There are three basic types this type of read operation, the word address must first of read operations: current address read, random read be set. This is done by sending the word address to the and sequential read. 24XX128 as part of a write operation (R/W bit set to ‘0’). Once the word address is sent, the master gener- 8.1 Current Address Read ates a Start condition following the acknowledge. This terminates the write operation, but not before the inter- The 24XX128 contains an address counter that main- nal Address Pointer is set. The master then issues the tains the address of the last word accessed, internally control byte again, but with the R/W bit set to a ‘1’. The incremented by ‘1’. Therefore, if the previous read 24XX128 will then issue an acknowledge and transmit access was to address ‘n’ (n is any legal address), the the 8-bit data word. The master will not acknowledge next current address read operation would access data the transfer but does generate a Stop condition, which from address n + 1. causes the 24XX128 to discontinue transmission Upon receipt of the control byte with R/W bit set to ‘1’, (Figure8-2). After a random Read command, the the 24XX128 issues an acknowledge and transmits the internal address counter will point to the address 8-bit data word. The master will not acknowledge the location following the one that was just read. transfer, but does generate a Stop condition and the 24XX128 discontinues transmission (Figure8-1). 8.3 Sequential Read Sequential reads are initiated in the same way as a FIGURE 8-1: CURRENT ADDRESS random read except that after the 24XX128 transmits READ the first data byte, the master issues an acknowledge S as opposed to the Stop condition used in a random T S Bus Activity A Control Data T read. This acknowledge directs the 24XX128 to Master R Byte Byte O transmit the next sequentially addressed 8-bit word T P (Figure8-3). Following the final byte transmitted to the SDA Line AAA S 1 0 1 0 2 1 0 1 P master, the master will NOT generate an acknowledge A N but will generate a Stop condition. To provide Bus Activity C O sequential reads, the 24XX128 contains an internal K A Address Pointer which is incremented by one at the C K completion of each operation. This Address Pointer allows the entire memory contents to be serially read during one operation. The internal Address Pointer will automatically roll over from address 3FFF to address 0000 if the master acknowledges the byte received from the array address 3FFF. FIGURE 8-2: RANDOM READ S S Bus Activity T T S Control Address Address Control Data Master A A T R Byte High Byte Low Byte R Byte Byte O T T P SDA Line S1 0 1 0 AAA0 xx S1 0 1 0 AAA1 P 2 1 0 2 1 0 A A A A N Bus Activity C C C C O K K K K A x = “don’t care” bit C K FIGURE 8-3: SEQUENTIAL READ Control S Bus Activity T Master Byte Data (n) Data (n + 1) Data (n + 2) Data (n + x) O P SDA Line P A A A A N C C C C O Bus Activity K K K K A C K DS21191S-page 10  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 9.0 PACKAGING INFORMATION 9.1 Package Marking Information 8-Lead PDIP (300 mil) Example: XXXXXXXX 24AA128 T/XXXNNN I/P e 3 017 YYWW 0510 8-Lead SOIC (3.90 mm) Example: XXXXXXXT 24LC128I XXXXYYWW SN e 3 0510 NNN 017 8-Lead SOIC (5.28 mm) Example: XXXXXXXX 24LC128 T/XXXXXX I/SMe3 YYWWNNN 0510017 8-Lead TSSOP Example: XXXX 4LC TYWW I510 NNN 017 8-Lead Chip Scale Example: XXXXXXX 24AA128 YYWWNNN 0810017  2010 Microchip Technology Inc. DS21191S-page 11

24AA128/24LC128/24FC128 Package Marking Information (Continued) 8-Lead MSOP Example: XXXXXT 4L128I YWWNNN 051017 8-Lead DFN-S Example: XXXXXXX 24LC128 T/XXXXX I/MF YYWW 0510 NNN 017 8-Lead 2x3 TDFN Example: XXX A84 YWW 510 NN I7 First Line Marking Codes Part Number TSSOP MSOP TDFN I-Temp E-Temp 24AA128 4AC 4A128T A81 — 24LC128 4LC 4L128T A84 A85 24FC128 4FC 4F128T A8A — Legend: XX...X Part number or part number code T Temperature (I, E) Y Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘01’) NNN Alphanumeric traceability code (2 characters for small packages) e3 Pb-free JEDEC designator for Matte Tin (Sn) Note: For very small packages with no room for the Pb-free JEDEC designator e3 , the marking will only appear on the outer carton or reel label. Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. *Standard device marking consists of Microchip part number, year code, week code, and traceability code. For device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. DS21191S-page 12  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 (cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:6)(cid:11)(cid:12)(cid:13)(cid:14)(cid:8)(cid:15)(cid:16)(cid:6)(cid:10)(cid:8)(cid:17)(cid:18)(cid:3)(cid:4)(cid:13)(cid:18)(cid:5)(cid:8)(cid:19)(cid:9)(cid:20)(cid:8)(cid:21)(cid:8)(cid:22)(cid:23)(cid:23)(cid:8)(cid:24)(cid:13)(cid:10)(cid:8)(cid:25)(cid:26)(cid:7)(cid:27)(cid:8)(cid:28)(cid:9)(cid:15)(cid:17)(cid:9)(cid:29) (cid:30)(cid:26)(cid:12)(cid:5)(cid:31) 3(cid:10)(cid:9)(cid:2)&(cid:11)(cid:14)(cid:2)’(cid:10)!&(cid:2)(cid:8)"(cid:9)(cid:9)(cid:14)(cid:15)&(cid:2)(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)#(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17)!((cid:2)(cid:12)(cid:16)(cid:14)(cid:28)!(cid:14)(cid:2)!(cid:14)(cid:14)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)(cid:2)(cid:22)(cid:12)(cid:14)(cid:8)(cid:7)%(cid:7)(cid:8)(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)(cid:28)&(cid:2) (cid:11)&&(cid:12)255***(cid:20)’(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:20)(cid:8)(cid:10)’5(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17) N NOTE1 E1 1 2 3 D E A A2 L A1 c e eB b1 b 6(cid:15)(cid:7)&! (cid:19)7,8.(cid:22) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:2)9(cid:7)’(cid:7)&! (cid:6)(cid:19)7 7:(cid:6) (cid:6)(cid:25); 7"’)(cid:14)(cid:9)(cid:2)(cid:10)%(cid:2)(cid:31)(cid:7)(cid:15)! 7 < (cid:31)(cid:7)&(cid:8)(cid:11) (cid:14) (cid:20)(cid:30)(cid:4)(cid:4)(cid:2)1(cid:22), (cid:13)(cid:10)(cid:12)(cid:2)&(cid:10)(cid:2)(cid:22)(cid:14)(cid:28)&(cid:7)(cid:15)(cid:17)(cid:2)(cid:31)(cid:16)(cid:28)(cid:15)(cid:14) (cid:25) = = (cid:20)(cid:3)(cid:30)(cid:4) (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:25)(cid:3) (cid:20)(cid:30)(cid:30)(cid:29) (cid:20)(cid:30)-(cid:4) (cid:20)(cid:30)(cid:24)(cid:29) 1(cid:28)!(cid:14)(cid:2)&(cid:10)(cid:2)(cid:22)(cid:14)(cid:28)&(cid:7)(cid:15)(cid:17)(cid:2)(cid:31)(cid:16)(cid:28)(cid:15)(cid:14) (cid:25)(cid:30) (cid:20)(cid:4)(cid:30)(cid:29) = = (cid:22)(cid:11)(cid:10)"(cid:16)#(cid:14)(cid:9)(cid:2)&(cid:10)(cid:2)(cid:22)(cid:11)(cid:10)"(cid:16)#(cid:14)(cid:9)(cid:2)>(cid:7)#&(cid:11) . (cid:20)(cid:3)(cid:24)(cid:4) (cid:20)-(cid:30)(cid:4) (cid:20)-(cid:3)(cid:29) (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)>(cid:7)#&(cid:11) .(cid:30) (cid:20)(cid:3)(cid:23)(cid:4) (cid:20)(cid:3)(cid:29)(cid:4) (cid:20)(cid:3)<(cid:4) : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) (cid:21) (cid:20)-(cid:23)< (cid:20)-?(cid:29) (cid:20)(cid:23)(cid:4)(cid:4) (cid:13)(cid:7)(cid:12)(cid:2)&(cid:10)(cid:2)(cid:22)(cid:14)(cid:28)&(cid:7)(cid:15)(cid:17)(cid:2)(cid:31)(cid:16)(cid:28)(cid:15)(cid:14) 9 (cid:20)(cid:30)(cid:30)(cid:29) (cid:20)(cid:30)-(cid:4) (cid:20)(cid:30)(cid:29)(cid:4) 9(cid:14)(cid:28)#(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:8) (cid:20)(cid:4)(cid:4)< (cid:20)(cid:4)(cid:30)(cid:4) (cid:20)(cid:4)(cid:30)(cid:29) 6(cid:12)(cid:12)(cid:14)(cid:9)(cid:2)9(cid:14)(cid:28)#(cid:2)>(cid:7)#&(cid:11) )(cid:30) (cid:20)(cid:4)(cid:23)(cid:4) (cid:20)(cid:4)?(cid:4) (cid:20)(cid:4)(cid:5)(cid:4) 9(cid:10)*(cid:14)(cid:9)(cid:2)9(cid:14)(cid:28)#(cid:2)>(cid:7)#&(cid:11) ) (cid:20)(cid:4)(cid:30)(cid:23) (cid:20)(cid:4)(cid:30)< (cid:20)(cid:4)(cid:3)(cid:3) : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)(cid:26)(cid:10)*(cid:2)(cid:22)(cid:12)(cid:28)(cid:8)(cid:7)(cid:15)(cid:17)(cid:2)(cid:2)+ (cid:14)1 = = (cid:20)(cid:23)-(cid:4) (cid:30)(cid:26)(cid:12)(cid:5)(cid:11)(cid:31) (cid:30)(cid:20) (cid:31)(cid:7)(cid:15)(cid:2)(cid:30)(cid:2) (cid:7)!"(cid:28)(cid:16)(cid:2)(cid:7)(cid:15)#(cid:14)$(cid:2)%(cid:14)(cid:28)&"(cid:9)(cid:14)(cid:2)’(cid:28)(cid:18)(cid:2) (cid:28)(cid:9)(cid:18)((cid:2))"&(cid:2)’"!&(cid:2))(cid:14)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)*(cid:7)&(cid:11)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:11)(cid:28)&(cid:8)(cid:11)(cid:14)#(cid:2)(cid:28)(cid:9)(cid:14)(cid:28)(cid:20) (cid:3)(cid:20) +(cid:2)(cid:22)(cid:7)(cid:17)(cid:15)(cid:7)%(cid:7)(cid:8)(cid:28)(cid:15)&(cid:2),(cid:11)(cid:28)(cid:9)(cid:28)(cid:8)&(cid:14)(cid:9)(cid:7)!&(cid:7)(cid:8)(cid:20) -(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)!(cid:2)(cid:21)(cid:2)(cid:28)(cid:15)#(cid:2).(cid:30)(cid:2)#(cid:10)(cid:2)(cid:15)(cid:10)&(cid:2)(cid:7)(cid:15)(cid:8)(cid:16)"#(cid:14)(cid:2)’(cid:10)(cid:16)#(cid:2)%(cid:16)(cid:28)!(cid:11)(cid:2)(cid:10)(cid:9)(cid:2)(cid:12)(cid:9)(cid:10)&(cid:9)"!(cid:7)(cid:10)(cid:15)!(cid:20)(cid:2)(cid:6)(cid:10)(cid:16)#(cid:2)%(cid:16)(cid:28)!(cid:11)(cid:2)(cid:10)(cid:9)(cid:2)(cid:12)(cid:9)(cid:10)&(cid:9)"!(cid:7)(cid:10)(cid:15)!(cid:2)!(cid:11)(cid:28)(cid:16)(cid:16)(cid:2)(cid:15)(cid:10)&(cid:2)(cid:14)$(cid:8)(cid:14)(cid:14)#(cid:2)(cid:20)(cid:4)(cid:30)(cid:4)/(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)!(cid:7)#(cid:14)(cid:20) (cid:23)(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:7)(cid:15)(cid:17)(cid:2)(cid:28)(cid:15)#(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:7)(cid:15)(cid:17)(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)(cid:25)(cid:22)(cid:6).(cid:2)0(cid:30)(cid:23)(cid:20)(cid:29)(cid:6)(cid:20) 1(cid:22),2(cid:2)1(cid:28)!(cid:7)(cid:8)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:20)(cid:2)(cid:13)(cid:11)(cid:14)(cid:10)(cid:9)(cid:14)&(cid:7)(cid:8)(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)(cid:14)$(cid:28)(cid:8)&(cid:2) (cid:28)(cid:16)"(cid:14)(cid:2)!(cid:11)(cid:10)*(cid:15)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)!(cid:20) (cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:13)(cid:14)(cid:8)(cid:11)(cid:15)(cid:10)(cid:16)(cid:10)(cid:17)(cid:18)(cid:21)(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17),(cid:4)(cid:23)(cid:27)(cid:4)(cid:30)<1  2010 Microchip Technology Inc. DS21191S-page 13

24AA128/24LC128/24FC128 (cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:6)(cid:11)(cid:12)(cid:13)(cid:14)(cid:8) (cid:24)(cid:6)(cid:10)(cid:10)(cid:8)!(cid:16)(cid:12)(cid:10)(cid:13)(cid:18)(cid:5)(cid:8)(cid:19) (cid:30)(cid:20)(cid:8)(cid:21)(cid:8)(cid:30)(cid:6)""(cid:26)#$(cid:8)(cid:22)%&(cid:23)(cid:8)(cid:24)(cid:24)(cid:8)(cid:25)(cid:26)(cid:7)(cid:27)(cid:8)(cid:28) !(cid:17)’(cid:29) (cid:30)(cid:26)(cid:12)(cid:5)(cid:31) 3(cid:10)(cid:9)(cid:2)&(cid:11)(cid:14)(cid:2)’(cid:10)!&(cid:2)(cid:8)"(cid:9)(cid:9)(cid:14)(cid:15)&(cid:2)(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)#(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17)!((cid:2)(cid:12)(cid:16)(cid:14)(cid:28)!(cid:14)(cid:2)!(cid:14)(cid:14)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)(cid:2)(cid:22)(cid:12)(cid:14)(cid:8)(cid:7)%(cid:7)(cid:8)(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)(cid:28)&(cid:2) (cid:11)&&(cid:12)255***(cid:20)’(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:20)(cid:8)(cid:10)’5(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17) D e N E E1 NOTE1 1 2 3 α b h h c A A2 φ A1 L L1 β 6(cid:15)(cid:7)&! (cid:6)(cid:19)99(cid:19)(cid:6).(cid:13).(cid:26)(cid:22) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:2)9(cid:7)’(cid:7)&! (cid:6)(cid:19)7 7:(cid:6) (cid:6)(cid:25); 7"’)(cid:14)(cid:9)(cid:2)(cid:10)%(cid:2)(cid:31)(cid:7)(cid:15)! 7 < (cid:31)(cid:7)&(cid:8)(cid:11) (cid:14) (cid:30)(cid:20)(cid:3)(cid:5)(cid:2)1(cid:22), : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)8(cid:14)(cid:7)(cid:17)(cid:11)& (cid:25) = = (cid:30)(cid:20)(cid:5)(cid:29) (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:25)(cid:3) (cid:30)(cid:20)(cid:3)(cid:29) = = (cid:22)&(cid:28)(cid:15)#(cid:10)%%(cid:2)(cid:2)+ (cid:25)(cid:30) (cid:4)(cid:20)(cid:30)(cid:4) = (cid:4)(cid:20)(cid:3)(cid:29) : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)>(cid:7)#&(cid:11) . ?(cid:20)(cid:4)(cid:4)(cid:2)1(cid:22), (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)>(cid:7)#&(cid:11) .(cid:30) -(cid:20)(cid:24)(cid:4)(cid:2)1(cid:22), : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) (cid:21) (cid:23)(cid:20)(cid:24)(cid:4)(cid:2)1(cid:22), ,(cid:11)(cid:28)’%(cid:14)(cid:9)(cid:2)@(cid:10)(cid:12)&(cid:7)(cid:10)(cid:15)(cid:28)(cid:16)A (cid:11) (cid:4)(cid:20)(cid:3)(cid:29) = (cid:4)(cid:20)(cid:29)(cid:4) 3(cid:10)(cid:10)&(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) 9 (cid:4)(cid:20)(cid:23)(cid:4) = (cid:30)(cid:20)(cid:3)(cid:5) 3(cid:10)(cid:10)&(cid:12)(cid:9)(cid:7)(cid:15)& 9(cid:30) (cid:30)(cid:20)(cid:4)(cid:23)(cid:2)(cid:26).3 3(cid:10)(cid:10)&(cid:2)(cid:25)(cid:15)(cid:17)(cid:16)(cid:14) (cid:3) (cid:4)B = <B 9(cid:14)(cid:28)#(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:8) (cid:4)(cid:20)(cid:30)(cid:5) = (cid:4)(cid:20)(cid:3)(cid:29) 9(cid:14)(cid:28)#(cid:2)>(cid:7)#&(cid:11) ) (cid:4)(cid:20)-(cid:30) = (cid:4)(cid:20)(cid:29)(cid:30) (cid:6)(cid:10)(cid:16)#(cid:2)(cid:21)(cid:9)(cid:28)%&(cid:2)(cid:25)(cid:15)(cid:17)(cid:16)(cid:14)(cid:2)(cid:13)(cid:10)(cid:12) (cid:4) (cid:29)B = (cid:30)(cid:29)B (cid:6)(cid:10)(cid:16)#(cid:2)(cid:21)(cid:9)(cid:28)%&(cid:2)(cid:25)(cid:15)(cid:17)(cid:16)(cid:14)(cid:2)1(cid:10)&&(cid:10)’ (cid:5) (cid:29)B = (cid:30)(cid:29)B (cid:30)(cid:26)(cid:12)(cid:5)(cid:11)(cid:31) (cid:30)(cid:20) (cid:31)(cid:7)(cid:15)(cid:2)(cid:30)(cid:2) (cid:7)!"(cid:28)(cid:16)(cid:2)(cid:7)(cid:15)#(cid:14)$(cid:2)%(cid:14)(cid:28)&"(cid:9)(cid:14)(cid:2)’(cid:28)(cid:18)(cid:2) (cid:28)(cid:9)(cid:18)((cid:2))"&(cid:2)’"!&(cid:2))(cid:14)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)*(cid:7)&(cid:11)(cid:7)(cid:15)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:11)(cid:28)&(cid:8)(cid:11)(cid:14)#(cid:2)(cid:28)(cid:9)(cid:14)(cid:28)(cid:20) (cid:3)(cid:20) +(cid:2)(cid:22)(cid:7)(cid:17)(cid:15)(cid:7)%(cid:7)(cid:8)(cid:28)(cid:15)&(cid:2),(cid:11)(cid:28)(cid:9)(cid:28)(cid:8)&(cid:14)(cid:9)(cid:7)!&(cid:7)(cid:8)(cid:20) -(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)!(cid:2)(cid:21)(cid:2)(cid:28)(cid:15)#(cid:2).(cid:30)(cid:2)#(cid:10)(cid:2)(cid:15)(cid:10)&(cid:2)(cid:7)(cid:15)(cid:8)(cid:16)"#(cid:14)(cid:2)’(cid:10)(cid:16)#(cid:2)%(cid:16)(cid:28)!(cid:11)(cid:2)(cid:10)(cid:9)(cid:2)(cid:12)(cid:9)(cid:10)&(cid:9)"!(cid:7)(cid:10)(cid:15)!(cid:20)(cid:2)(cid:6)(cid:10)(cid:16)#(cid:2)%(cid:16)(cid:28)!(cid:11)(cid:2)(cid:10)(cid:9)(cid:2)(cid:12)(cid:9)(cid:10)&(cid:9)"!(cid:7)(cid:10)(cid:15)!(cid:2)!(cid:11)(cid:28)(cid:16)(cid:16)(cid:2)(cid:15)(cid:10)&(cid:2)(cid:14)$(cid:8)(cid:14)(cid:14)#(cid:2)(cid:4)(cid:20)(cid:30)(cid:29)(cid:2)’’(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)!(cid:7)#(cid:14)(cid:20) (cid:23)(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:7)(cid:15)(cid:17)(cid:2)(cid:28)(cid:15)#(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:7)(cid:15)(cid:17)(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)(cid:25)(cid:22)(cid:6).(cid:2)0(cid:30)(cid:23)(cid:20)(cid:29)(cid:6)(cid:20) 1(cid:22),2 1(cid:28)!(cid:7)(cid:8)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:20)(cid:2)(cid:13)(cid:11)(cid:14)(cid:10)(cid:9)(cid:14)&(cid:7)(cid:8)(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)(cid:14)$(cid:28)(cid:8)&(cid:2) (cid:28)(cid:16)"(cid:14)(cid:2)!(cid:11)(cid:10)*(cid:15)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)!(cid:20) (cid:26).32 (cid:26)(cid:14)%(cid:14)(cid:9)(cid:14)(cid:15)(cid:8)(cid:14)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)((cid:2)"!"(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)((cid:2)%(cid:10)(cid:9)(cid:2)(cid:7)(cid:15)%(cid:10)(cid:9)’(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:12)"(cid:9)(cid:12)(cid:10)!(cid:14)!(cid:2)(cid:10)(cid:15)(cid:16)(cid:18)(cid:20) (cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:13)(cid:14)(cid:8)(cid:11)(cid:15)(cid:10)(cid:16)(cid:10)(cid:17)(cid:18)(cid:21)(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17),(cid:4)(cid:23)(cid:27)(cid:4)(cid:29)(cid:5)1 DS21191S-page 14  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 (cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:6)(cid:11)(cid:12)(cid:13)(cid:14)(cid:8) (cid:24)(cid:6)(cid:10)(cid:10)(cid:8)!(cid:16)(cid:12)(cid:10)(cid:13)(cid:18)(cid:5)(cid:8)(cid:19) (cid:30)(cid:20)(cid:8)(cid:21)(cid:8)(cid:30)(cid:6)""(cid:26)#$(cid:8)(cid:22)%&(cid:23)(cid:8)(cid:24)(cid:24)(cid:8)(cid:25)(cid:26)(cid:7)(cid:27)(cid:8)(cid:28) !(cid:17)’(cid:29) (cid:30)(cid:26)(cid:12)(cid:5)(cid:31) 3(cid:10)(cid:9)(cid:2)&(cid:11)(cid:14)(cid:2)’(cid:10)!&(cid:2)(cid:8)"(cid:9)(cid:9)(cid:14)(cid:15)&(cid:2)(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)#(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17)!((cid:2)(cid:12)(cid:16)(cid:14)(cid:28)!(cid:14)(cid:2)!(cid:14)(cid:14)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)(cid:2)(cid:22)(cid:12)(cid:14)(cid:8)(cid:7)%(cid:7)(cid:8)(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)(cid:28)&(cid:2) (cid:11)&&(cid:12)255***(cid:20)’(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:20)(cid:8)(cid:10)’5(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)  2010 Microchip Technology Inc. DS21191S-page 15

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21191S-page 16  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. DS21191S-page 17

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21191S-page 18  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 (cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:6)(cid:11)(cid:12)(cid:13)(cid:14)(cid:8)()(cid:13)(cid:18)(cid:8) )"(cid:13)(cid:18)*(cid:8) (cid:24)(cid:6)(cid:10)(cid:10)(cid:8)!(cid:16)(cid:12)(cid:10)(cid:13)(cid:18)(cid:5)(cid:8)(cid:19) ((cid:20)(cid:8)(cid:21)(cid:8)+%+(cid:8)(cid:24)(cid:24)(cid:8)(cid:25)(cid:26)(cid:7)(cid:27)(cid:8)(cid:28)( !(cid:9)(cid:29) (cid:30)(cid:26)(cid:12)(cid:5)(cid:31) 3(cid:10)(cid:9)(cid:2)&(cid:11)(cid:14)(cid:2)’(cid:10)!&(cid:2)(cid:8)"(cid:9)(cid:9)(cid:14)(cid:15)&(cid:2)(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)#(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17)!((cid:2)(cid:12)(cid:16)(cid:14)(cid:28)!(cid:14)(cid:2)!(cid:14)(cid:14)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)(cid:2)(cid:22)(cid:12)(cid:14)(cid:8)(cid:7)%(cid:7)(cid:8)(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)(cid:28)&(cid:2) (cid:11)&&(cid:12)255***(cid:20)’(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:20)(cid:8)(cid:10)’5(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17) D N E E1 NOTE1 1 2 b e c φ A A2 A1 L1 L 6(cid:15)(cid:7)&! (cid:6)(cid:19)99(cid:19)(cid:6).(cid:13).(cid:26)(cid:22) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:2)9(cid:7)’(cid:7)&! (cid:6)(cid:19)7 7:(cid:6) (cid:6)(cid:25); 7"’)(cid:14)(cid:9)(cid:2)(cid:10)%(cid:2)(cid:31)(cid:7)(cid:15)! 7 < (cid:31)(cid:7)&(cid:8)(cid:11) (cid:14) (cid:4)(cid:20)?(cid:29)(cid:2)1(cid:22), : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)8(cid:14)(cid:7)(cid:17)(cid:11)& (cid:25) = = (cid:30)(cid:20)(cid:3)(cid:4) (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:25)(cid:3) (cid:4)(cid:20)<(cid:4) (cid:30)(cid:20)(cid:4)(cid:4) (cid:30)(cid:20)(cid:4)(cid:29) (cid:22)&(cid:28)(cid:15)#(cid:10)%%(cid:2) (cid:25)(cid:30) (cid:4)(cid:20)(cid:4)(cid:29) = (cid:4)(cid:20)(cid:30)(cid:29) : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)>(cid:7)#&(cid:11) . ?(cid:20)(cid:23)(cid:4)(cid:2)1(cid:22), (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)>(cid:7)#&(cid:11) .(cid:30) (cid:23)(cid:20)-(cid:4) (cid:23)(cid:20)(cid:23)(cid:4) (cid:23)(cid:20)(cid:29)(cid:4) (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) (cid:21) (cid:3)(cid:20)(cid:24)(cid:4) -(cid:20)(cid:4)(cid:4) -(cid:20)(cid:30)(cid:4) 3(cid:10)(cid:10)&(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) 9 (cid:4)(cid:20)(cid:23)(cid:29) (cid:4)(cid:20)?(cid:4) (cid:4)(cid:20)(cid:5)(cid:29) 3(cid:10)(cid:10)&(cid:12)(cid:9)(cid:7)(cid:15)& 9(cid:30) (cid:30)(cid:20)(cid:4)(cid:4)(cid:2)(cid:26).3 3(cid:10)(cid:10)&(cid:2)(cid:25)(cid:15)(cid:17)(cid:16)(cid:14) (cid:3) (cid:4)B = <B 9(cid:14)(cid:28)#(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:8) (cid:4)(cid:20)(cid:4)(cid:24) = (cid:4)(cid:20)(cid:3)(cid:4) 9(cid:14)(cid:28)#(cid:2)>(cid:7)#&(cid:11) ) (cid:4)(cid:20)(cid:30)(cid:24) = (cid:4)(cid:20)-(cid:4) (cid:30)(cid:26)(cid:12)(cid:5)(cid:11)(cid:31) (cid:30)(cid:20) (cid:31)(cid:7)(cid:15)(cid:2)(cid:30)(cid:2) (cid:7)!"(cid:28)(cid:16)(cid:2)(cid:7)(cid:15)#(cid:14)$(cid:2)%(cid:14)(cid:28)&"(cid:9)(cid:14)(cid:2)’(cid:28)(cid:18)(cid:2) (cid:28)(cid:9)(cid:18)((cid:2))"&(cid:2)’"!&(cid:2))(cid:14)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)*(cid:7)&(cid:11)(cid:7)(cid:15)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:11)(cid:28)&(cid:8)(cid:11)(cid:14)#(cid:2)(cid:28)(cid:9)(cid:14)(cid:28)(cid:20) (cid:3)(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)!(cid:2)(cid:21)(cid:2)(cid:28)(cid:15)#(cid:2).(cid:30)(cid:2)#(cid:10)(cid:2)(cid:15)(cid:10)&(cid:2)(cid:7)(cid:15)(cid:8)(cid:16)"#(cid:14)(cid:2)’(cid:10)(cid:16)#(cid:2)%(cid:16)(cid:28)!(cid:11)(cid:2)(cid:10)(cid:9)(cid:2)(cid:12)(cid:9)(cid:10)&(cid:9)"!(cid:7)(cid:10)(cid:15)!(cid:20)(cid:2)(cid:6)(cid:10)(cid:16)#(cid:2)%(cid:16)(cid:28)!(cid:11)(cid:2)(cid:10)(cid:9)(cid:2)(cid:12)(cid:9)(cid:10)&(cid:9)"!(cid:7)(cid:10)(cid:15)!(cid:2)!(cid:11)(cid:28)(cid:16)(cid:16)(cid:2)(cid:15)(cid:10)&(cid:2)(cid:14)$(cid:8)(cid:14)(cid:14)#(cid:2)(cid:4)(cid:20)(cid:30)(cid:29)(cid:2)’’(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)!(cid:7)#(cid:14)(cid:20) -(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:7)(cid:15)(cid:17)(cid:2)(cid:28)(cid:15)#(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:7)(cid:15)(cid:17)(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)(cid:25)(cid:22)(cid:6).(cid:2)0(cid:30)(cid:23)(cid:20)(cid:29)(cid:6)(cid:20) 1(cid:22),2 1(cid:28)!(cid:7)(cid:8)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:20)(cid:2)(cid:13)(cid:11)(cid:14)(cid:10)(cid:9)(cid:14)&(cid:7)(cid:8)(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)(cid:14)$(cid:28)(cid:8)&(cid:2) (cid:28)(cid:16)"(cid:14)(cid:2)!(cid:11)(cid:10)*(cid:15)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)!(cid:20) (cid:26).32 (cid:26)(cid:14)%(cid:14)(cid:9)(cid:14)(cid:15)(cid:8)(cid:14)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)((cid:2)"!"(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)((cid:2)%(cid:10)(cid:9)(cid:2)(cid:7)(cid:15)%(cid:10)(cid:9)’(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:12)"(cid:9)(cid:12)(cid:10)!(cid:14)!(cid:2)(cid:10)(cid:15)(cid:16)(cid:18)(cid:20) (cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:13)(cid:14)(cid:8)(cid:11)(cid:15)(cid:10)(cid:16)(cid:10)(cid:17)(cid:18)(cid:21)(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17),(cid:4)(cid:23)(cid:27)(cid:4)<?1  2010 Microchip Technology Inc. DS21191S-page 19

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21191S-page 20  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 (cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:6)(cid:11)(cid:12)(cid:13)(cid:14)(cid:8),(cid:13)(cid:14)"(cid:26)(cid:8) (cid:24)(cid:6)(cid:10)(cid:10)(cid:8)!(cid:16)(cid:12)(cid:10)(cid:13)(cid:18)(cid:5)(cid:8)(cid:9)(cid:6)(cid:14)*(cid:6)-(cid:5)(cid:8)(cid:19), (cid:20)(cid:8)(cid:28), !(cid:9)(cid:29) (cid:30)(cid:26)(cid:12)(cid:5)(cid:31) 3(cid:10)(cid:9)(cid:2)&(cid:11)(cid:14)(cid:2)’(cid:10)!&(cid:2)(cid:8)"(cid:9)(cid:9)(cid:14)(cid:15)&(cid:2)(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)#(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17)!((cid:2)(cid:12)(cid:16)(cid:14)(cid:28)!(cid:14)(cid:2)!(cid:14)(cid:14)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)(cid:2)(cid:22)(cid:12)(cid:14)(cid:8)(cid:7)%(cid:7)(cid:8)(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)(cid:28)&(cid:2) (cid:11)&&(cid:12)255***(cid:20)’(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:20)(cid:8)(cid:10)’5(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17) D N E E1 NOTE1 1 2 e b c φ A A2 A1 L1 L 6(cid:15)(cid:7)&! (cid:6)(cid:19)99(cid:19)(cid:6).(cid:13).(cid:26)(cid:22) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:2)9(cid:7)’(cid:7)&! (cid:6)(cid:19)7 7:(cid:6) (cid:6)(cid:25); 7"’)(cid:14)(cid:9)(cid:2)(cid:10)%(cid:2)(cid:31)(cid:7)(cid:15)! 7 < (cid:31)(cid:7)&(cid:8)(cid:11) (cid:14) (cid:4)(cid:20)?(cid:29)(cid:2)1(cid:22), : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)8(cid:14)(cid:7)(cid:17)(cid:11)& (cid:25) = = (cid:30)(cid:20)(cid:30)(cid:4) (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:25)(cid:3) (cid:4)(cid:20)(cid:5)(cid:29) (cid:4)(cid:20)<(cid:29) (cid:4)(cid:20)(cid:24)(cid:29) (cid:22)&(cid:28)(cid:15)#(cid:10)%%(cid:2) (cid:25)(cid:30) (cid:4)(cid:20)(cid:4)(cid:4) = (cid:4)(cid:20)(cid:30)(cid:29) : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)>(cid:7)#&(cid:11) . (cid:23)(cid:20)(cid:24)(cid:4)(cid:2)1(cid:22), (cid:6)(cid:10)(cid:16)#(cid:14)#(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)>(cid:7)#&(cid:11) .(cid:30) -(cid:20)(cid:4)(cid:4)(cid:2)1(cid:22), : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) (cid:21) -(cid:20)(cid:4)(cid:4)(cid:2)1(cid:22), 3(cid:10)(cid:10)&(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) 9 (cid:4)(cid:20)(cid:23)(cid:4) (cid:4)(cid:20)?(cid:4) (cid:4)(cid:20)<(cid:4) 3(cid:10)(cid:10)&(cid:12)(cid:9)(cid:7)(cid:15)& 9(cid:30) (cid:4)(cid:20)(cid:24)(cid:29)(cid:2)(cid:26).3 3(cid:10)(cid:10)&(cid:2)(cid:25)(cid:15)(cid:17)(cid:16)(cid:14) (cid:3) (cid:4)B = <B 9(cid:14)(cid:28)#(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:8) (cid:4)(cid:20)(cid:4)< = (cid:4)(cid:20)(cid:3)- 9(cid:14)(cid:28)#(cid:2)>(cid:7)#&(cid:11) ) (cid:4)(cid:20)(cid:3)(cid:3) = (cid:4)(cid:20)(cid:23)(cid:4) (cid:30)(cid:26)(cid:12)(cid:5)(cid:11)(cid:31) (cid:30)(cid:20) (cid:31)(cid:7)(cid:15)(cid:2)(cid:30)(cid:2) (cid:7)!"(cid:28)(cid:16)(cid:2)(cid:7)(cid:15)#(cid:14)$(cid:2)%(cid:14)(cid:28)&"(cid:9)(cid:14)(cid:2)’(cid:28)(cid:18)(cid:2) (cid:28)(cid:9)(cid:18)((cid:2))"&(cid:2)’"!&(cid:2))(cid:14)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)*(cid:7)&(cid:11)(cid:7)(cid:15)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:11)(cid:28)&(cid:8)(cid:11)(cid:14)#(cid:2)(cid:28)(cid:9)(cid:14)(cid:28)(cid:20) (cid:3)(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)!(cid:2)(cid:21)(cid:2)(cid:28)(cid:15)#(cid:2).(cid:30)(cid:2)#(cid:10)(cid:2)(cid:15)(cid:10)&(cid:2)(cid:7)(cid:15)(cid:8)(cid:16)"#(cid:14)(cid:2)’(cid:10)(cid:16)#(cid:2)%(cid:16)(cid:28)!(cid:11)(cid:2)(cid:10)(cid:9)(cid:2)(cid:12)(cid:9)(cid:10)&(cid:9)"!(cid:7)(cid:10)(cid:15)!(cid:20)(cid:2)(cid:6)(cid:10)(cid:16)#(cid:2)%(cid:16)(cid:28)!(cid:11)(cid:2)(cid:10)(cid:9)(cid:2)(cid:12)(cid:9)(cid:10)&(cid:9)"!(cid:7)(cid:10)(cid:15)!(cid:2)!(cid:11)(cid:28)(cid:16)(cid:16)(cid:2)(cid:15)(cid:10)&(cid:2)(cid:14)$(cid:8)(cid:14)(cid:14)#(cid:2)(cid:4)(cid:20)(cid:30)(cid:29)(cid:2)’’(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)!(cid:7)#(cid:14)(cid:20) -(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:7)(cid:15)(cid:17)(cid:2)(cid:28)(cid:15)#(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:7)(cid:15)(cid:17)(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)(cid:25)(cid:22)(cid:6).(cid:2)0(cid:30)(cid:23)(cid:20)(cid:29)(cid:6)(cid:20) 1(cid:22),2 1(cid:28)!(cid:7)(cid:8)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:20)(cid:2)(cid:13)(cid:11)(cid:14)(cid:10)(cid:9)(cid:14)&(cid:7)(cid:8)(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)(cid:14)$(cid:28)(cid:8)&(cid:2) (cid:28)(cid:16)"(cid:14)(cid:2)!(cid:11)(cid:10)*(cid:15)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)!(cid:20) (cid:26).32 (cid:26)(cid:14)%(cid:14)(cid:9)(cid:14)(cid:15)(cid:8)(cid:14)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)((cid:2)"!"(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)((cid:2)%(cid:10)(cid:9)(cid:2)(cid:7)(cid:15)%(cid:10)(cid:9)’(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:12)"(cid:9)(cid:12)(cid:10)!(cid:14)!(cid:2)(cid:10)(cid:15)(cid:16)(cid:18)(cid:20) (cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:13)(cid:14)(cid:8)(cid:11)(cid:15)(cid:10)(cid:16)(cid:10)(cid:17)(cid:18)(cid:21)(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17),(cid:4)(cid:23)(cid:27)(cid:30)(cid:30)(cid:30)1  2010 Microchip Technology Inc. DS21191S-page 21

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21191S-page 22  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 (cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:6)(cid:11)(cid:12)(cid:13)(cid:14)(cid:8)(cid:15)(cid:16)(cid:6)(cid:10)(cid:8).(cid:10)(cid:6)(cid:12)$(cid:8)(cid:30)(cid:26)(cid:8)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:6)(cid:14)*(cid:6)-(cid:5)(cid:8)(cid:19),.(cid:20)(cid:8)(cid:21)(cid:8)/01(cid:8)(cid:24)(cid:24)(cid:8)(cid:25)(cid:26)(cid:7)(cid:27)(cid:8)(cid:28)(cid:15).(cid:30)(cid:3) (cid:29) (cid:30)(cid:26)(cid:12)(cid:5)(cid:31) 3(cid:10)(cid:9)(cid:2)&(cid:11)(cid:14)(cid:2)’(cid:10)!&(cid:2)(cid:8)"(cid:9)(cid:9)(cid:14)(cid:15)&(cid:2)(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)#(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17)!((cid:2)(cid:12)(cid:16)(cid:14)(cid:28)!(cid:14)(cid:2)!(cid:14)(cid:14)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)(cid:2)(cid:22)(cid:12)(cid:14)(cid:8)(cid:7)%(cid:7)(cid:8)(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)(cid:28)&(cid:2) (cid:11)&&(cid:12)255***(cid:20)’(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:20)(cid:8)(cid:10)’5(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17) (cid:2) e D L b N N K E E2 EXPOSEDPAD NOTE1 NOTE1 1 2 2 1 D2 TOPVIEW BOTTOMVIEW A A3 A1 NOTE2 6(cid:15)(cid:7)&! (cid:6)(cid:19)99(cid:19)(cid:6).(cid:13).(cid:26)(cid:22) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:2)9(cid:7)’(cid:7)&! (cid:6)(cid:19)7 7:(cid:6) (cid:6)(cid:25); 7"’)(cid:14)(cid:9)(cid:2)(cid:10)%(cid:2)(cid:31)(cid:7)(cid:15)! 7 < (cid:31)(cid:7)&(cid:8)(cid:11) (cid:14) (cid:30)(cid:20)(cid:3)(cid:5)(cid:2)1(cid:22), : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)8(cid:14)(cid:7)(cid:17)(cid:11)& (cid:25) (cid:4)(cid:20)<(cid:4) (cid:4)(cid:20)<(cid:29) (cid:30)(cid:20)(cid:4)(cid:4) (cid:22)&(cid:28)(cid:15)#(cid:10)%%(cid:2) (cid:25)(cid:30) (cid:4)(cid:20)(cid:4)(cid:4) (cid:4)(cid:20)(cid:4)(cid:30) (cid:4)(cid:20)(cid:4)(cid:29) ,(cid:10)(cid:15)&(cid:28)(cid:8)&(cid:2)(cid:13)(cid:11)(cid:7)(cid:8)4(cid:15)(cid:14)!! (cid:25)- (cid:4)(cid:20)(cid:3)(cid:4)(cid:2)(cid:26).3 : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) (cid:21) (cid:29)(cid:20)(cid:4)(cid:4)(cid:2)1(cid:22), : (cid:14)(cid:9)(cid:28)(cid:16)(cid:16)(cid:2)>(cid:7)#&(cid:11) . ?(cid:20)(cid:4)(cid:4)(cid:2)1(cid:22), .$(cid:12)(cid:10)!(cid:14)#(cid:2)(cid:31)(cid:28)#(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) (cid:21)(cid:3) -(cid:20)(cid:24)(cid:4) (cid:23)(cid:20)(cid:4)(cid:4) (cid:23)(cid:20)(cid:30)(cid:4) .$(cid:12)(cid:10)!(cid:14)#(cid:2)(cid:31)(cid:28)#(cid:2)>(cid:7)#&(cid:11) .(cid:3) (cid:3)(cid:20)(cid:3)(cid:4) (cid:3)(cid:20)-(cid:4) (cid:3)(cid:20)(cid:23)(cid:4) ,(cid:10)(cid:15)&(cid:28)(cid:8)&(cid:2)>(cid:7)#&(cid:11) ) (cid:4)(cid:20)-(cid:29) (cid:4)(cid:20)(cid:23)(cid:4) (cid:4)(cid:20)(cid:23)< ,(cid:10)(cid:15)&(cid:28)(cid:8)&(cid:2)9(cid:14)(cid:15)(cid:17)&(cid:11) 9 (cid:4)(cid:20)(cid:29)(cid:4) (cid:4)(cid:20)?(cid:4) (cid:4)(cid:20)(cid:5)(cid:29) ,(cid:10)(cid:15)&(cid:28)(cid:8)&(cid:27)&(cid:10)(cid:27).$(cid:12)(cid:10)!(cid:14)#(cid:2)(cid:31)(cid:28)# C (cid:4)(cid:20)(cid:3)(cid:4) = = (cid:30)(cid:26)(cid:12)(cid:5)(cid:11)(cid:31) (cid:30)(cid:20) (cid:31)(cid:7)(cid:15)(cid:2)(cid:30)(cid:2) (cid:7)!"(cid:28)(cid:16)(cid:2)(cid:7)(cid:15)#(cid:14)$(cid:2)%(cid:14)(cid:28)&"(cid:9)(cid:14)(cid:2)’(cid:28)(cid:18)(cid:2) (cid:28)(cid:9)(cid:18)((cid:2))"&(cid:2)’"!&(cid:2))(cid:14)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)*(cid:7)&(cid:11)(cid:7)(cid:15)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:11)(cid:28)&(cid:8)(cid:11)(cid:14)#(cid:2)(cid:28)(cid:9)(cid:14)(cid:28)(cid:20) (cid:3)(cid:20) (cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)’(cid:28)(cid:18)(cid:2)(cid:11)(cid:28) (cid:14)(cid:2)(cid:10)(cid:15)(cid:14)(cid:2)(cid:10)(cid:9)(cid:2)’(cid:10)(cid:9)(cid:14)(cid:2)(cid:14)$(cid:12)(cid:10)!(cid:14)#(cid:2)&(cid:7)(cid:14)(cid:2))(cid:28)(cid:9)!(cid:2)(cid:28)&(cid:2)(cid:14)(cid:15)#!(cid:20) -(cid:20) (cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)(cid:7)!(cid:2)!(cid:28)*(cid:2)!(cid:7)(cid:15)(cid:17)"(cid:16)(cid:28)&(cid:14)#(cid:20) (cid:23)(cid:20) (cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:7)(cid:15)(cid:17)(cid:2)(cid:28)(cid:15)#(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:7)(cid:15)(cid:17)(cid:2)(cid:12)(cid:14)(cid:9)(cid:2)(cid:25)(cid:22)(cid:6).(cid:2)0(cid:30)(cid:23)(cid:20)(cid:29)(cid:6)(cid:20) 1(cid:22),2 1(cid:28)!(cid:7)(cid:8)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)(cid:20)(cid:2)(cid:13)(cid:11)(cid:14)(cid:10)(cid:9)(cid:14)&(cid:7)(cid:8)(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)(cid:14)$(cid:28)(cid:8)&(cid:2) (cid:28)(cid:16)"(cid:14)(cid:2)!(cid:11)(cid:10)*(cid:15)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)!(cid:20) (cid:26).32 (cid:26)(cid:14)%(cid:14)(cid:9)(cid:14)(cid:15)(cid:8)(cid:14)(cid:2)(cid:21)(cid:7)’(cid:14)(cid:15)!(cid:7)(cid:10)(cid:15)((cid:2)"!"(cid:28)(cid:16)(cid:16)(cid:18)(cid:2)*(cid:7)&(cid:11)(cid:10)"&(cid:2)&(cid:10)(cid:16)(cid:14)(cid:9)(cid:28)(cid:15)(cid:8)(cid:14)((cid:2)%(cid:10)(cid:9)(cid:2)(cid:7)(cid:15)%(cid:10)(cid:9)’(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:12)"(cid:9)(cid:12)(cid:10)!(cid:14)!(cid:2)(cid:10)(cid:15)(cid:16)(cid:18)(cid:20) (cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:13)(cid:14)(cid:8)(cid:11)(cid:15)(cid:10)(cid:16)(cid:10)(cid:17)(cid:18)(cid:21)(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17),(cid:4)(cid:23)(cid:27)(cid:30)(cid:3)(cid:3)1  2010 Microchip Technology Inc. DS21191S-page 23

24AA128/24LC128/24FC128 (cid:30)(cid:26)(cid:12)(cid:5)(cid:31) 3(cid:10)(cid:9)(cid:2)&(cid:11)(cid:14)(cid:2)’(cid:10)!&(cid:2)(cid:8)"(cid:9)(cid:9)(cid:14)(cid:15)&(cid:2)(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)#(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17)!((cid:2)(cid:12)(cid:16)(cid:14)(cid:28)!(cid:14)(cid:2)!(cid:14)(cid:14)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)(cid:2)(cid:22)(cid:12)(cid:14)(cid:8)(cid:7)%(cid:7)(cid:8)(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)(cid:28)&(cid:2) (cid:11)&&(cid:12)255***(cid:20)’(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:20)(cid:8)(cid:10)’5(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17) DS21191S-page 24  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. DS21191S-page 25

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21191S-page 26  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 (cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:6)(cid:11)(cid:12)(cid:13)(cid:14)(cid:8)(cid:15)(cid:16)(cid:6)(cid:10)(cid:8).(cid:10)(cid:6)(cid:12)$(cid:8)(cid:30)(cid:26)(cid:8)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:6)(cid:14)*(cid:6)-(cid:5)(cid:8)(cid:19),(cid:30)(cid:20)(cid:8)(cid:21)(cid:8)20(cid:22)0(cid:23)%31(cid:8)(cid:24)(cid:24)(cid:8)(cid:25)(cid:26)(cid:7)(cid:27)(cid:8)(cid:28)((cid:15).(cid:30)(cid:29) (cid:30)(cid:26)(cid:12)(cid:5)(cid:31) 3(cid:10)(cid:9)(cid:2)&(cid:11)(cid:14)(cid:2)’(cid:10)!&(cid:2)(cid:8)"(cid:9)(cid:9)(cid:14)(cid:15)&(cid:2)(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:14)(cid:2)#(cid:9)(cid:28)*(cid:7)(cid:15)(cid:17)!((cid:2)(cid:12)(cid:16)(cid:14)(cid:28)!(cid:14)(cid:2)!(cid:14)(cid:14)(cid:2)&(cid:11)(cid:14)(cid:2)(cid:6)(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:2)(cid:31)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)(cid:2)(cid:22)(cid:12)(cid:14)(cid:8)(cid:7)%(cid:7)(cid:8)(cid:28)&(cid:7)(cid:10)(cid:15)(cid:2)(cid:16)(cid:10)(cid:8)(cid:28)&(cid:14)#(cid:2)(cid:28)&(cid:2) (cid:11)&&(cid:12)255***(cid:20)’(cid:7)(cid:8)(cid:9)(cid:10)(cid:8)(cid:11)(cid:7)(cid:12)(cid:20)(cid:8)(cid:10)’5(cid:12)(cid:28)(cid:8)4(cid:28)(cid:17)(cid:7)(cid:15)(cid:17)  2010 Microchip Technology Inc. DS21191S-page 27

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21191S-page 28  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. DS21191S-page 29

24AA128/24LC128/24FC128 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21191S-page 30  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 APPENDIX A: REVISION HISTORY Revision L Corrections to Section 1.0, Electrical Characteristics. Revision M Added 1.8V 400 kHz option for 24FC128. Revision N Revised Sections 2.1, 2.4 and 6.3. Removed 14-Lead TSSOP Package. Revision P Changed 1.8V to 1.7V throughout document; Revised Features Section; Replaced Package Drawings; Revised Product ID Section. Revision Q (June 2008) Updated packaging; Added Chip Scale package. Revision R (04/2009) Updated Chip Scale package. Revision S (05/2010) Added TDFN Package; Updated Package Drawings and Product ID.  2010 Microchip Technology Inc. DS21191S-page 31

24AA128/24LC128/24FC128 NOTES: DS21191S-page 32  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 THE MICROCHIP WEB SITE CUSTOMER SUPPORT Microchip provides online support via our WWW site at Users of Microchip products can receive assistance www.microchip.com. This web site is used as a means through several channels: to make files and information easily available to • Distributor or Representative customers. Accessible by using your favorite Internet • Local Sales Office browser, the web site contains the following • Field Application Engineer (FAE) information: • Technical Support • Product Support – Data sheets and errata, • Development Systems Information Line application notes and sample programs, design resources, user’s guides and hardware support Customers should contact their distributor, documents, latest software releases and archived representative or field application engineer (FAE) for software support. Local sales offices are also available to help • General Technical Support – Frequently Asked customers. A listing of sales offices and locations is Questions (FAQ), technical support requests, included in the back of this document. online discussion groups, Microchip consultant Technical support is available through the web site program member listing at: http://support.microchip.com • Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives CUSTOMER CHANGE NOTIFICATION SERVICE Microchip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest. To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions.  2010 Microchip Technology Inc. DS21191S-page 33

24AA128/24LC128/24FC128 READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip prod- uct. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150. Please list the following information, and use this outline to provide us with your comments about this document. To: Technical Publications Manager Total Pages Sent ________ RE: Reader Response From: Name Company Address City / State / ZIP / Country Telephone: (_______) _________ - _________ FAX: (______) _________ - _________ Application (optional): Would you like a reply? Y N Device: 24AA128/24LC128/24FC128 Literature Number: DS21191S Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs? 3. Do you find the organization of this document easy to follow? If not, why? 4. What additions to the document do you think would enhance the structure and subject? 5. What deletions from the document could be made without affecting the overall usefulness? 6. Is there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS21191S-page 34  2010 Microchip Technology Inc.

24AA128/24LC128/24FC128 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. X /XX Examples: a) 24AA128-I/P: Industrial Temp., Device Temperature Package 1.7V, PDIP package. Range b) 24AA128T-I/SN: Tape and Reel, Industrial Temp., 1.7V, SOIC Device: 24AA128: 128 Kbit 1.7V I2C Serial EEPROM package. 24AA128T: 128 Kbit 1.7V I2C Serial EEPROM c) 24AA128-I/ST: Industrial Temp., (Tape and Reel) 24LC128: 128 Kbit 2.5V I2C Serial EEPROM 1.7V, TSSOP package. 24LC128T: 128 Kbit 2.5V I2C Serial EEPROM d) 24AA128-I/MS: Industrial Temp., (Tape and Reel) 1.7V, MSOP package. 24FC128: 128 Kbit High Speed I2C Serial e) 24AA128T-I/CS15K:Industrial EEPROM Temp., 1.7V, CS package, Tape and 24FC128T: 128 Kbit High Speed I2C Serial Reel EEPROM (Tape and Reel) f) 24LC128-E/P: Extended Temp., 2.5V, PDIP package. Temperature I = -40C to +85C g) 24LC128-I/SN: Industrial Temp., Range: E = -40C to +125C 2.5V, SOIC package. h) 24LC128T-I/SN: Tape and Reel, Package: P = Plastic DIP (300 mil body), 8-lead Industrial Temp., 2.5V, SOIC SN = Plastic SOIC (3.90 mm body), package. 8-lead i) 24LC128-I/MS: Industrial Temp., SM = Plastic SOIC (5.28 mm body), 2.5V, MSOP package. 8-lead j) 24LC128T-I/MNY: Tape and Reel, ST = Plastic TSSOP (4.4 mm), 8-lead Industrial Temp., 2.5V, TDFN MF = Dual, Flat, No Lead (DFN-S) package. (6x5 mm body), 8-lead MNY(1) = TDFN (2x3x0.75 mm body), 8-lead k) 24FC128-I/P: Industrial Temp., MS = Plastic Micro Small Outline 1.7V, High Speed, PDIP package. (MSOP), 8-lead l) 24FC128-I/SN: Industrial Temp., CS15K(2) = Chip Scale (CS), 8-lead (I-temp, 1.7V, High Speed, SOIC package. “AA”, Tape and Reel only) m) 24FC128T-I/SN: Tape and Reel, Industrial Temp., 1.7V, High Speed, Note 1: “Y” indicates a Nickel Palladium Gold (NiPdAu) finish. SOIC package 2: “15K” indicates 150K technology  2010 Microchip Technology Inc. DS21191S-page35

24AA128/24LC128/24FC128 NOTES: DS21191S-page36  2010 Microchip Technology Inc.

Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device Trademarks applications and the like is provided only for your convenience The Microchip name and logo, the Microchip logo, dsPIC, and may be superseded by updates. It is your responsibility to KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, ensure that your application meets with your specifications. PIC32 logo, rfPIC and UNI/O are registered trademarks of MICROCHIP MAKES NO REPRESENTATIONS OR Microchip Technology Incorporated in the U.S.A. and other WARRANTIES OF ANY KIND WHETHER EXPRESS OR countries. IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, INCLUDING BUT NOT LIMITED TO ITS CONDITION, MXDEV, MXLAB, SEEVAL and The Embedded Control QUALITY, PERFORMANCE, MERCHANTABILITY OR Solutions Company are registered trademarks of Microchip FITNESS FOR PURPOSE. Microchip disclaims all liability Technology Incorporated in the U.S.A. arising from this information and its use. Use of Microchip Analog-for-the-Digital Age, Application Maestro, CodeGuard, devices in life support and/or safety applications is entirely at dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, the buyer’s risk, and the buyer agrees to defend, indemnify and ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial hold harmless Microchip from any and all damages, claims, Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified suits, or expenses resulting from such use. No licenses are logo, MPLIB, MPLINK, mTouch, Octopus, Omniscient Code conveyed, implicitly or otherwise, under any Microchip Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, intellectual property rights. PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2010, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 978-1-60932-167-3 Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.  2010 Microchip Technology Inc. DS21191S-page 37

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Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M icrochip: 24AA128T-I/MF 24AA128-I/STG 24AA128-I/MF 24AA128-I/SM 24AA128-I/MS 24AA128-I/ST 24AA128-I/PG 24AA128-I/SN 24AA128T-I/MSG 24LC128-E/SM 24LC128-E/SN 24LC128-E/ST 24LC128T-I/SN 24LC128T-I/MF 24LC128T-I/SM 24LC128T-I/ST 24LC128T-I/MS 24FC128-I/STG 24FC128-I/SNG 24FC128-I/SMG 24LC128-I/PG 24LC128-I/SNG 24FC128T-I/MSG 24LC128T-E/ST 24AA128T-I/ST 24AA128T-I/SN 24AA128T-I/SM 24FC128T- I/STG 24FC128T-I/SNG 24LC128T-I/SNG 24FC128-I/MSG 24FC128T-I/MS 24FC128T-I/SM 24FC128T-I/ST 24FC128T-I/SN 24AA128T-I/MS 24AA128-I/MSG 24LC128T-I/MSG 24FC128T-I/SMG 24AA128T-I/SMG 24AA128T-I/STG 24AA128T-I/SNG 24FC128-I/P 24AA128-I/SMG 24AA128T/SM 24AA128-I/SNG 24AA128T/SN 24LC128-I/P 24LC128-I/MSG 24FC128-I/PG 24LC128T-E/SM 24LC128T-E/SN 24AA128/P 24LC128-I/SN 24LC128-I/ST 24LC128-I/SM 24LC128-I/MS 24LC128-I/MF 24LC128-I/STG 24LC128-I/SMG 24LC128-E/P 24AA128-I/P 24LC128T-I/STG 24LC128T-I/SMG 24AA128/SN 24AA128/SM 24FC128-I/MS 24FC128-I/MF 24FC128-I/ST 24FC128-I/SN 24FC128-I/SM 24AA128T-I/MNY 24FC128T-I/MNY 24LC128T-E/MNY 24LC128T- I/MNY 24FC128T-I/MF 24LC128-E/MS 24LC128T-E/MS