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.

7 4 L C X December 2013 3 7 3 — 74LCX373 L o Low Voltage Octal Transparent Latch w V o with 5V Tolerant Inputs and Outputs l t a g e Features General Description O c ■ 5V tolerant inputs and outputs The LCX373 consists of eight latches with 3-STATE t a ■ 2.3V–3.6V VCC specifications provided outputs for bus organized system applications. The l T ■ 8.0ns tPD max. (VCC = 3.3V), 10µA ICC max. device is designed for low voltage applications with ra capability of interfacing to a 5V signal environment. n ■ Power down high impedance inputs and outputs s ■ Supports live insertion/withdrawal(1) The LCX373 is fabricated with an advanced CMOS p a ■■ ±Im2p4lmemA eonuttsp uptr odprirvieet a(VryC nCo =is 3e./0EVM)I reduction circuitry tteacinhinngo loCgMyO toS alocwhi epvoew ehrig dhi ssspipeaetdio onp.eration while main- rent ■ Latch-up performance exceeds JEDEC 78 conditions L a ■ ESD performance tc – Human body model > 2000V h w – Machine model > 200V i t ■ Leadless DQFN package h 5 V Note: T o 1. To ensure the high impedance state during power up l e or down, OE should be tied to VCC through a pull-up ra resistor: the minimum value of the resistor is n determined by the current-sourcing capability of the t I driver. n p u t s a Ordering Information n d Order Package O u Number Number Package Description t p 74LCX373WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide u t s 74LCX373SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LCX373BQX(2) MLP20B 20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm 74LCX373MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 74LCX373MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Note: 2. DQFN package available in Tape and Reel only. Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number. All packages are lead free per JEDEC: J-STD-020B standard. ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1

7 4 Connection Diagrams Logic Symbols L C X Pin Assignments for 3 SOIC, SOP, SSOP, TSSOP 7 D0D1D2D3D4D5D6D7 3 LE — OE 1 20 VCC OE L O0 2 19 O7 O0O1O2O3O4O5O6O7 o D0 3 18 D7 w D1 4 17 D6 V O1 5 16 O6 IEEE/IEC ol O2 6 15 O5 ta D2 7 14 D5 OLEE ECN1 ge D3 8 13 D4 O GNOD3 910 1121 OLE4 DD01 1D OO01 ctal D2 O2 Tr D3 O3 an Pad Assignments for DQFN D4 O4 s OE VCC D5 O5 pa 1 20 D6 O6 re D7 O7 n O0 2 19 O7 t L D0 3 18 D7 a t D1 4 17 D6 Truth Table ch w O1 5 16 O6 Inputs Outputs i t O2 6 15 O5 LE OE Dn On h 5 D2 7 14 D5 X H X Z V T D3 8 13 D4 H L L L o l e O3 9 12 O4 H L H H r a n 10 11 L L X O 0 t GND LE I H = HIGH Voltage n p (Top View) (Bottom View) L = LOW Voltage u t s Pin Descriptions Z = High Impedance a X = Immaterial n Pin Names Description d O0 = Previous O0 before HIGH-to-LOW transition O D0–D7 Data Inputs of Latch Enable u t LE Latch Enable Input p u OE 3-STATE Output Enable Input Functional Description ts O –O 3-STATE Latch Outputs 0 7 The LCX373 contains eight D-type latches with 3-STATE DAP No Connect standard outputs. When the Latch Enable (LE) input is HIGH, data on the D inputs enters the latches. In this n Note: DAP (Die Attach Pad) condition the latches are transparent, i.e. a latch output will change state each time its D input changes. When LE is LOW, the latches store the information that was present on the D inputs a setup time preceding the HIGH-to-LOW transition of LE. The 3-STATE standard outputs are controlled by the Output Enable (OE) input. When OE is LOW, the standard outputs are in the 2-state mode. When OE is HIGH, the standard outputs are in the high impedance mode but this does not inter- fere with entering new data into the latches. ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 2

7 4 Logic Diagram L C X D0 D1 D2 D3 D4 D5 D6 D7 3 7 3 D D D D D D D D — L O O O O O O O O o G G G G G G G G w V LE o l t a g e O OE c t O0 O1 O2 O3 O4 O5 O6 O7 al T Please note that this diagram is provided only for the understanding of logic operations and should not be used to ra estimate propagation delays. n s p a r e n t L a t c h w i t h 5 V T o l e r a n t I n p u t s a n d O u t p u t s ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 3

7 4 Absolute Maximum Ratings L C Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be X 3 operable above the recommended operating conditions and stressing the parts to these levels is not recommended. 7 In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. 3 The absolute maximum ratings are stress ratings only. — L Symbol Parameter Conditions Value Units o w VCC Supply Voltage –0.5 to +7.0 V V V DC Input Voltage –0.5 to +7.0 V o I l t a V DC Output Voltage Output in 3-STATE –0.5 to +7.0 V O g Output in HIGH or LOW State(3) –0.5 to VCC + 0.5 e O I DC Input Diode Current V < GND –50 mA c IK I t IOK DC Output Diode Current VO < GND –50 mA al T V > V +50 r O CC a n I DC Output Source/Sink Current ±50 mA O s p ICC DC Supply Current per Supply Pin ±100 mA a r I DC Ground Current per Ground Pin ±100 mA e GND n TSTG Storage Temperature –65 to +150 °C t L a t c h Recommended Operating Conditions(4) w The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended it h operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not 5 recommend exceeding them or designing to absolute maximum ratings. V T Symbol Parameter Conditions Min. Max. Units o l e VCC Supply Voltage Operating 2.0 3.6 V ra Data Retention 1.5 3.6 n t VI Input Voltage 0 5.5 V In p VO Output Voltage HIGH or LOW State 0 VCC V u t 3-STATE 0 5.5 s a I /I Output Current V = 3.0V–3.6V ±24 mA n OH OL CC d VCC = 2.7V–3.0V ±12 O u V = 2.3V–2.7V ±8 CC t p T Free-Air Operating Temperature –40 85 °C u A t ∆t/∆V Input Edge Rate V = 0.8V–2.0V, V = 3.0V 0 10 ns/V s IN CC Notes: 3. I Absolute Maximum Rating must be observed. O 4. Unused inputs must be held HIGH or LOW. They may not float. ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 4

7 4 DC Electrical Characteristics L C T = –40°C to +85°C X A 3 7 Symbol Parameter V (V) Conditions Min. Max. Units CC 3 V HIGH Level Input Voltage 2.3–2.7 1.7 V — IH 2.7–3.6 2.0 L o V LOW Level Input Voltage 2.3–2.7 0.7 V w IL V 2.7–3.6 0.8 o l t V HIGH Level Output Voltage 2.3–3.6 I = –100µA V – 0.2 V a OH OH CC g 2.3 I = –8mA 1.8 e OH O 2.7 I = –12mA 2.2 OH c t 3.0 I = –18mA 2.4 a OH l T 3.0 IOH = –24mA 2.2 r a V LOW Level Output Voltage 2.3–3.6 I = 100µA 0.2 V n OL OL s 2.3 I = 8mA 0.6 p OL a 2.7 IOL = 12mA 0.4 re n 3.0 IOL = 16mA 0.4 t L 3.0 I = 24mA 0.55 a OL t II Input Leakage Current 2.3–3.6 0 ≤ VI ≤ 5.5V ±5.0 µA ch I 3-STATE Output Leakage 2.3–3.6 0 ≤ V ≤ 5.5V, ±5.0 µA w OZ O i V = V or V t I IH IL h I Power-Off Leakage Current 0 V or V = 5.5V 10 µA 5 OFF I O V ICC Quiescent Supply Current 2.3–3.6 VI = VCC or GND 10 µA T o 2.3–3.6 3.6V ≤ V, V ≤ 5.5V(5) ±10 l I O e ∆I Increase in I per Input 2.3–3.6 V = V –0.6V 500 µA ra CC CC IH CC n t I n p u AC Electrical Characteristics t s a TA = –40°C to +85°C, RL = 500Ω n d V = 3.3V ± 0.3V, V = 2.7V, V = 2.5 ± 0.2V, CC CC CC O CL = 50pF CL = 50pF CL = 30pF u t Symbol Parameter Min. Max. Min. Max. Min. Max. Units p u t t , t Propagation Delay, D to O 1.5 8.0 1.5 9.0 1.5 9.6 ns s PHL PLH n n t , t Propagation Delay, LE to O 1.5 8.5 1.5 9.5 1.5 10.5 ns PHL PLH n t , t Output Enable Time 1.5 8.5 1.5 9.5 1.5 10.5 ns PZL PZH t , t Output Disable Time 1.5 7.5 1.5 8.5 1.5 9.0 ns PLZ PHZ t Setup Time, D to LE 2.5 2.5 4.0 ns S n t Hold Time, D to LE 1.5 1.5 2.0 ns H n t LE Pulse Width 3.3 3.3 4.0 ns W t t Output to Output Skew(6) 1.0 ns OSHL, OSLH Notes: 5. Outputs disabled or 3-STATE only. 6. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (t ) or LOW-to-HIGH (t ). OSHL OSLH ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 5

7 4 Dynamic Switching Characteristics L C X T = 25°C 3 A 7 3 Symbol Parameter V (V) Conditions Typical Units CC — VOLP Quiet Output Dynamic Peak VOL 3.3 CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V L 2.5 C = 30pF, V = 2.5V, V = 0V 0.6 o L I IL w VOLV Quiet Output Dynamic Valley VOL 3.3 CL = 50pF, VIH = 3.3V, VIL = 0V –0.8 V V o 2.5 CL = 30pF, VI = 2.5V, VIL = 0V –0.6 lt a g e Capacitance O c t a Symbol Parameter Conditions Typical Units l T CIN Input Capacitance VCC = Open, VI = 0V or VCC 7 pF ra n COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 pF s p C Power Dissipation Capacitance V = 3.3V, V = 0V or V , f = 10MHz 25 pF a PD CC I CC r e n t L a t c h w i t h 5 V T o l e r a n t I n p u t s a n d O u t p u t s ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 6

7 4 AC Loading and Waveforms (Generic for LCX Family) LC X 3 VCC 7 500Ω OPEN tPLH, tPHL 3 TEST DUT GND tPZH, tPHZ — SIGNAL VI tPZL, tPLZ L CL 500Ω o w V o l Figure 1. AC Test Circuit (C includes probe and jig capacitance) t L a g e Test Switch O t , t Open c PLH PHL t a t , t 6V at V = 3.3 ± 0.3V l PZL PLZ CC T VCC x 2 at VCC = 2.5 ± 0.2V ra t , t GND n PZH PHZ s p a DATINA Vmi VGCNCD COONUTTRPOUTL Vmi VGCNCD ren tpxx tpxx tPZH tPHZ t L DOAUTAT Vmo DOAUTAT Vmo VVOYH at c h Waveform for Inverting and 3-STATE Output High Enable and w Non-Inverting Functions Disable Times for Logic it h 5 COCNLTORCOINKL tW treVcmiVmi VGCNCD CONINTDRPAOUTITLNA tS VtHmi Vmi VGVGCCNNCCDD V Toleran tPHL tPLH MR tS trec t I OR Vmi n OUTPUT Vmo Vmo CLEAR p u t s Propagation Delay, Pulse Width and Setup Time, Hold Time and a t Waveforms Recovery Time for Logic n rec d O COONUTTRPOUTL Vmi VGCNCD tr tf utp tPZL tPLZ VOH u DOAUTAT Vmo VX OUTAPNUYT 10%90% 90%10% ts VOL VOL t and t 3-STATE Output Low Enable and rise fall Disable Times for Logic Figure 2. Waveforms (Input Characteristics; f = 1MHz, t = t = 3ns) r f V CC Symbol 3.3V ± 0.3V 2.7V 2.5V ± 0.2V V 1.5V 1.5V V / 2 mi CC V 1.5V 1.5V V / 2 mo CC V V + 0.3V V + 0.3V V + 0.15V x OL OL OL V V – 0.3V V – 0.3V V – 0.15V y OH OH OH ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 7

7 4 Schematic Diagram (Generic for LCX Family) LC X Input Stage 3 7 3 — L o P2 w V P1 o l VCC ta g e O Data c t ESD a P5 X1 l T D2 N+/P– VDD ra N1 N2 n s p a GTO™ Output r e Input Stage n t P4 D6 L N+/P– a t c h w i t h P3 5 V N5 T o l e Enable r N4 a ESD n t D4 N+/P– I n N3 p u t s a n d O u t p u t s ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 8

7 4 Tape and Reel Specification L C X Tape Format for DQFN 3 7 Package Tape Number Cavity Cover Tape 3 — Designator Section Cavities Status Status L BQX Leader (Start End) 125 (typ) Empty Sealed o w Carrier 3000 Filled Sealed V Trailer (Hub End) 75 (typ) Empty Sealed o l t a Tape Dimensions inches (millimeters) g e O c t a l T r a n s p a r e n t L a t c h w i t h 5 V T o l e r a n t I n p u t s a n d O u Reel Dimensions inches (millimeters) tp u t s Tape Size A B C D N W1 W2 12mm 13.0 (330.0) 0.059 (1.50) 0.512 (13.00) 0.795 (20.20) 2.165 (55.00) 0.488 (12.4) 0.724 (18.4) ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 9

7 4 Physical Dimensions L C X 3 13.00 7 12.60 3 A — 11.43 L 20 11 o B w V o l t a 9.50 g e 10.65 7.60 10.00 7.40 O c t 2.25 a l T r a n s 1 10 0.65 p PINONE 0.51 1.27 1.27 a INDICATOR 0.35 re 0.25 M C B A n t LANDPATTERNRECOMMENDATION L a t c 2.65MAX SEEDETAILA h w i 0.33 th C 0.20 5 V 0.30 0.10 C T 0.75 0.10 SEATINGPLANE o 0.25X45° le NOTES:UNLESSOTHERWISESPECIFIED r a n (R0.10) A) THISPACKAGECONFORMSTOJEDEC t (R0.10) GAGEPLANE MS-013,VARIATIONAC,ISSUEE In p 80°° 0.25 BC)) ADLIMLEDNIMSEIONNSSIODNOSNAORTEIINNCMLUILDLIEMMETOELRDS. uts FLASHORBURRS. a 1.27 D) CONFORMSTOASMEY14.5M-1994 n 0.40 SEATINGPLANE E) LANDPATTERNSTANDARD:SOIC127P1030X265-20L d O (1.40) DETAILA F) DRAWINGFILENAME:MKT-M20BREV3 u SCALE:2:1 tp u t Figure 3. 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide s Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 10

7 4 Physical Dimensions (Continued) LC X 3 7 3 — L o w V o l t a g e O c t a l T r a n s p a r e n t L a t c h w i t h 5 V T o l e r a n t I n p u t s a n d O u t p u t s Figure 4. 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 11

7 4 Physical Dimensions (Continued) LC X 3 7 3 — L o w V o l t a g e O c t a l T r a n s p a r e n t L a t c h w i t h 5 V T o l e r a n t I n p u t s a n d O u t p u t s Figure 5. 20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 12

7 4 Physical Dimensions (Continued) LC X 3 7 3 — L o w V o l t a g e O c t a l T r a n s p a r e n t L a t c h w i t h 5 V T o l e r a n t I n p u t s a n d O u t p u t s Figure 6. 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 13

7 4 Physical Dimensions (Continued) LC X 3 7 3 — L o w V o l t a g e O c t a l T r a n s p a r e n t L a t c h w i t h 5 V T o l e r a n t I n p u t s a n d O u t p u t s Figure 7. 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com 74LCX373 Rev. 1.8.1 14

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