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MC74VHC257

ON Semiconductor
Part Number MC74VHC257
Manufacturer ON Semiconductor
Description Quad 2-Channel Multiplexer
Published Apr 14, 2007
Detailed Description MC74VHC257 Quad 2-Channel Multiplexer with 3-State Outputs The MC74VHC257 is an advanced high speed CMOS quad 2−channel ...
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MC74VHC257
MC74VHC257

Overview
MC74VHC257 Quad 2-Channel Multiplexer with 3-State Outputs The MC74VHC257 is an advanced high speed CMOS quad 2−channel multiplexer fabricated with silicon gate CMOS technology.
It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.
It consists of four 2−input digital multiplexers with common select (S) and enable (OE) inputs.
When (OE) is held High, selection of data is inhibited and all the outputs go Low.
The select decoding determines whether the A or B inputs get routed to the corresponding Y outputs.
The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems.
• High Speed: tPD = 4.
1 ns (Typ) at VCC = 5.
0 V • Low Power Dissipation: ICC = 4.
0 mA (Max) at TA = 25°C • High Noise Immunity: VNIH = VNIL = 28% VCC • Power Down Protection Provided on Inputs • Balanced Propagation Delays • Designed for 2.
0 V to 5.
5 V Operating Range • Low Noise: VOLP = 0.
8 V (Max) • Pin and Function Compatible with Other Standard Logic Families • Latchup Performance Exceeds 300 mA • ESD Performance: HBM > 2000 V; Machine Model > 200 V • Chip Complexity: FETs = 100; Equivalent Gates = 25 • These Devices are Pb−Free and are RoHS Compliant http://onsemi.
com MARKING DIAGRAMS SO−16 D SUFFIX CASE 751B 16 9 VHC257G AWLYWW 1 8 TSSOP−16 DT SUFFIX CASE 948F 16 9 VHC 257 ALYWG G 1 8 A = Assembly Location L, WL = Wafer Lot Y, YY = Year W, WW = Work Week G or G = Pb−Free Package S1 A0 2 B0 3 Y0 4 A1 5 B1 6 Y1 7 GND 8 16 VCC 15 OE 14 A3 13 B3 12 Y3 11 A2 10 B2 9 Y2 ORDERING INFORMATION Device Package Shipping MC74VHC257DG SO−16 48 Units/Rail MC74VHC257DR2G SO−16 2500 Units/Reel MC74VHC257DTG TSSOP−16 96 Units/Rail MC74VHC257DTR2G TSSOP−16 2500 Units/Reel Figure 1.
Pin Assignment © Semiconductor Components Industries, LLC, 2014 1 September, 2014 − Rev.
6 Publication Order Number: MC74VHC257/D OE I0a MC74VHC257 I1a I0b I1b I0c I1c I0d I1d S Za Zb Zc Zd Fig...


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