Is Now Part of To learn more about ON Semiconductor, please visit our website at www.onsemi.com Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore (_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain device numbers with an underscore (_). Please check the ON Semiconductor website to verify the updated device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please email any questions regarding the system integration to Fairchild_questions@onsemi.com. ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

M September 1983 M Revised May 2005 7 4 H C 5 MM74HC540 (cid:127) MM74HC541 4 0 Inverting Octal 3-STATE Buffer (cid:127) Octal 3-STATE Buffer • M M General Description Features 7 4 The MM74HC540 and MM74HC541 3-STATE buffers uti- (cid:1) Typical propagation delay: 12 ns H C lize advanced silicon-gate CMOS technology. They pos- (cid:1) 3-STATE outputs for connection to system buses 5 soepsesra htiiognh derviveen cwurhreennt oduritvpinugts wlahrgiceh ebnuas blcea hpiagchit asnpceeesd. (cid:1) Wide power supply range: 2–6V 41 These circuits achieve speeds comparable to low power (cid:1) Low quiescent current: 80 PA maximum (74HC Series) In Schottky devices, while retaining the advantage of CMOS (cid:1) Output current: 6 mA v circuitry, i.e., high noise immunity, and low power consump- e r tion. Both devices have a fanout of 15 LS-TTL equivalent t inputs. in g The MM74HC540 is an inverting buffer and the O MM74HC541 is a non-inverting buffer. The 3-STATE con- c trol gate operates as a two-input NOR such that if either G1 t a oarn cGe2 s taartee .HIGH, all eight outputs are in the high-imped- l 3 - In order to enhance PC board layout, the MM74HC540 and S MM74HC541 offers a pinout having inputs and outputs on T A opposite sides of the package. All inputs are protected from T damage due to static discharge by diodes to VCC and E ground. B u f f e Ordering Code: r (cid:127) O Order Number Package Number Package Description c MM74HC540WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide ta l MM74HC540SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 3 MM74HC540MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide -S MM74HC540N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide T A MM74HC541WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide T E MM74HC541SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide B MM74HC541MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide u MM74HC541N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide ff e Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. r Connection Diagrams Pin Assignments for DIP, SOIC, SOP and TSSOP Top View MM74HC541 Top View MM74HC540 © 2005 Fairchild Semiconductor Corporation DS005341 www.fairchildsemi.com

1 4 Absolute Maximum Ratings Recommended Operating 5 (Note 1) C (Note 2) Conditions H 74 Supply Voltage (VCC) (cid:16)0.5 to (cid:14)7.0V Min Max Units M DC Input Voltage (VIN) (cid:16)1.5 to VCC (cid:14)1.5V Supply Voltage (VCC) 2 6 V M DC Output Voltage (VOUT) (cid:16)0.5 to VCC (cid:14)0.5V DC Input or Output Voltage 0 (cid:127) Clamp Diode Current (ICD) r20 mA (VIN, VOUT) 0 VCC V 54 DC Output Current, per pin (IOUT) r35 mA Operating Temperature Range (TA) (cid:16)40 (cid:14)85 qC C DC VCC or GND Current, Input Rise or Fall Times 4H per pin (ICC) r70 mA (tr, tf) VCC 2.0V 1000 ns 7 Storage Temperature Range (TSTG) (cid:16)65qC to (cid:14)150qC VCC 4.5V 500 ns MM Power Dissipation (PD) VCC 6.0V 400 ns (Note 3) 600 mW Note 1: Absolute Maximum Ratings are those values beyond which dam- S.O. Package only 500 mW age to the device may occur. Note 2: Unless otherwise specified all voltages are referenced to ground. Lead Temperature (TL) Note 3: Power Dissipation temperature derating — plastic “N” package: (cid:16) (Soldering 10 seconds) 260qC 12 mW/qC from 65qC to 85qC. DC Electrical Characteristics (Note 4) Symbol Parameter Conditions VCC TA 25qC TA (cid:16)40 to 85qC TA (cid:16)55 to 125qC Units Typ Guaranteed Limits VIH Minimum HIGH Level 2.0V 1.5 1.5 1.5 V Input Voltage 4.5V 3.15 3.15 3.15 V 6.0V 4.2 4.2 4.2 V VIL Maximum LOW Level 2.0V 0.5 0.5 0.5 V Input Voltage 4.5V 1.35 1.35 1.35 V 6.0V 1.8 1.8 1.8 V VOH Minimum HIGH Level VIN VIH or VIL Output Voltage |IOUT| d 20 PA 2.0V 2.0 1.9 1.9 1.9 V 4.5V 4.5 4.4 4.4 4.4 V 6.0V 6.0 5.9 5.9 5.9 V VIN VIH or VIL |IOUT| d 6.0 mA 4.5V 4.2 3.98 3.84 3.7 V |IOUT| d 7.8 mA 6.0V 5.7 5.48 5.34 5.2 V VOL Maximum LOW Level VIN VIH or VIL Output Voltage |IOUT| d 20 PA 2.0V 0 0.1 0.1 0.1 V 4.5V 0 0.1 0.1 0.1 V 6.0V 0 0.1 0.1 0.1 V VIN VIH or VIL |IOUT| d 6.0 mA 4.5V 0.2 0.26 0.33 0.4 V |IOUT| d 7.8 mA 6.0V 0.2 0.26 0.33 0.4 V IIN Maximum Input VIN VCC or GND 6.0V r0.1 r1.0 r1.0 PA Current IOZ Maximum 3-STATE VIN VIH or VIL, G VIH 6.0V r0.5 r5 r10 PA Output Leakage VOUT VCC or GND Current ICC Maximum Quiescent VIN VCC or GND 6.0V 8.0 80 160 PA Supply Current IOUT 0 PA Note 4: For a power supply of 5V r10% the worst case output voltages (VOH, and VOL) occur for HC at 4.5V. Thus the 4.5V values should be used when designing with this supply. Worst case VIH and VIL occur at VCC 5.5V and 4.5V respectively. (The VIH value at 5.5V is 3.85V.) The worst case leakage cur- rent (IIN, ICC, and IOZ) occur for CMOS at the higher voltage and so the 6.0V values should be used. www.fairchildsemi.com 2

M AC Electrical Characteristics M 7 VCC 5V, TA 25qC, tr tf 6 ns 4 Guaranteed H Symbol Parameter Conditions Typ Units C Limit 5 tPHL, tPLH Maximum Propagation CL 45 pF 12 18 ns 4 0 Delay (540) (cid:127) tPHL, tPLH Maximum Propagation CL 45 pF 14 20 ns M Delay (541) M tPZH, tPZL Maximum Output Enable RL 1 k: 17 28 ns 7 Time CL 45 pF 4H tPHZ, tPLZ Maximum Output Disable RL 1 k: 15 25 ns C Time CL 5 pF 54 1 AC Electrical Characteristics VCC 2.0V to 6.0V, CL 50 pF, tr tf 6 ns (unless otherwise specified) Symbol Parameter Conditions VCC TA 25qC TA (cid:16)40 to 85qC TA (cid:16)55 to 125qC Units Typ Guaranteed Limits tPHL, tPLH Maximum Propagation CL 50 pF 2.0V 55 100 126 149 ns Delay (540) CL 150 pF 2.0V 83 150 190 224 ns CL 50 pF 4.5V 12 20 25 30 ns CL 150 pF 4.5V 22 30 38 45 ns CL 50 pF 6.0V 11 17 21 25 ns CL 150 pF 6.0V 18 26 32 38 ns tPHL, tPLH Maximum Propagation CL 50 pF 2.0V 58 115 145 171 ns Delay (541) CL 150 pF 2.0V 83 165 208 246 ns CL 50 pF 4.5V 14 23 29 34 ns CL 150 pF 4.5V 17 33 42 49 ns CL 50 pF 6.0V 11 20 25 29 ns CL 150 pF 6.0V 14 28 35 42 ns tPZH, tPZL Maximum Output Enable RL 1 k: Time CL 50 pF 2.0V 75 150 189 224 ns CL 150 pF 2.0V 100 200 252 298 ns CL 50 pF 4.5V 15 30 38 45 ns CL 150 pF 4.5V 30 40 50 60 ns CL 50 pF 6.0V 13 26 32 38 ns CL 150 pF 6.0V 17 34 43 51 ns tPHZ, tPLZ Maximum Output Disable RL 1 k: 2.0V 75 150 189 224 ns Time CL 50 pF 4.5V 15 30 38 45 ns 6.0V 13 26 32 38 ns tTHL, tTLH Maximum Output Rise CL 50 pF 2.0V 25 60 75 90 ns and Fall Time 4.5V 7 12 15 18 ns 6.0V 6 10 13 15 ns CPD Power Dissipation G VIH 10 pF Capacitance (Note 5) G VIL 50 pF CIN Maximum Input 5 10 10 10 pF Capacitance COUT Maximum Output Capacitance 15 20 20 20 pF Note 5: CPD determines the no load dynamic power consumption, PD CPD VCC2f (cid:14) ICC VCC, and the no load dynamic current consumption, IS CPDVCCf (cid:14) ICC. 3 www.fairchildsemi.com

1 4 Physical Dimensions 5 inches (millimeters) unless otherwise noted C H 4 7 M M (cid:127) 0 4 5 C H 4 7 M M 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package Number M20B www.fairchildsemi.com 4

M Physical Dimensions inches (millimeters) unless otherwise noted (Continued) M 7 4 H C 5 4 0 (cid:127) M M 7 4 H C 5 4 1 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D 5 www.fairchildsemi.com

1 4 Physical Dimensions 5 inches (millimeters) unless otherwise noted (Continued) C H 4 7 M M (cid:127) 0 4 5 C H 4 7 M M 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20 www.fairchildsemi.com 6

M Physical Dimensions inches (millimeters) unless otherwise noted (Continued) M 7 4 H C 5 4 0 (cid:127) M M 7 4 H C 5 4 1 In v e r t in g O c t a 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide l 3 Package Number N20A - S T A T E B u f f e r (cid:127) O c t a l 3 - S T A T E B u f f e r Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems 2. A critical component in any component of a life support which, (a) are intended for surgical implant into the device or system whose failure to perform can be rea- body, or (b) support or sustain life, and (c) whose failure sonably expected to cause the failure of the life support to perform when properly used in accordance with device or system, or to affect its safety or effectiveness. instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the www.fairchildsemi.com user. 7 www.fairchildsemi.com

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Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: O N Semiconductor: MM74HC541WM MM74HC541WMX MM74HC541SJ MM74HC541MTCX MM74HC541SJX MM74HC541MTC MM74HC541N