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MC74VHC257DT Datasheet(PDF) 1 Page - ON Semiconductor |
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MC74VHC257DT Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 8 page © Semiconductor Components Industries, LLC, 2004 September, 2004 − Rev. 3 1 Publication Order Number: MC74VHC257/D 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: t PD = 4.1 ns (Typ) at VCC = 5.0 V • Low Power Dissipation: I CC = 4.0 mA (Max) at TA = 25°C • High Noise Immunity: V NIH = 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: V OLP = 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 13 14 15 16 9 10 11 12 5 4 3 2 1 8 7 6 S Y0 B0 A0 Y1 B1 A1 GND Y3 B3 A3 OE VCC B2 A2 Y2 Figure 1. Pin Assignment SO−16 SO−16 D SUFFIX CASE 751B MARKING DIAGRAMS 1 8 9 16 1 8 16 9 VHC257 AWLYWW VHC257 ALYW TSSOP−16 DT SUFFIX CASE 948F ORDERING INFORMATION EIAJ SO−16 M SUFFIX CASE 966 VHC257 ALYW A = Assembly Location L, WL = Wafer Lot Y = Year W, WW = Work Week 16 9 1 8 Device Package Shipping† MC74VHC257D SO−16 48 Units/Rail MC74VHC257DT TSSOP−16 96 Units/Rail MC74VHC257M EIAJSO−16 50 Units/Rail MC74VHC257DR2 2500 Tape & Reel MC74VHC257DTR2 TSSOP−16 2500 Tape & Reel MC74VHC257MEL EIAJSO−16 2000 Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. http://onsemi.com |
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