MC74VHC257D View Datasheet(PDF) - ON Semiconductor

Part Name

Description

MFG CO.

MC74VHC257D

Quad 2-Channel Multiplexer with 3-State Outputs

ON Semiconductor 

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 available in Pb--free package(s). Specifications herein

apply to both standard and Pb--free devices. Please see our website at

www.onsemi.com for specific Pb--free orderable part numbers, or

contact your local ON Semiconductor sales office or representative.

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

http://onsemi.com

MARKING DIAGRAMS

SO--16

D SUFFIX

CASE 751B

16

9

VHC257

AWLYWW

1

8

TSSOP--16

DT SUFFIX

CASE 948F

16

9

VHC257

ALYW

1

8

16

9

EIAJ SO--16

M SUFFIX

CASE 966

VHC257

ALYW

1

8

A

L, WL

Y

W, WW

= Assembly Location

= Wafer Lot

= Year

= Work Week

ORDERING INFORMATION

Device

MC74VHC257D

MC74VHC257DR2

Package

SO--16

SO--16

Shipping†

48 Units/Rail

2500 Tape & Reel

MC74VHC257DT TSSOP--16 96 Units/Rail

MC74VHC257DTR2 TSSOP--16 2500 Tape & Reel

MC74VHC257M EIAJSO--16 50 Units/Rail

Figure 1. Pin Assignment

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.

© Semiconductor Components Industries, LLC, 2006

1

March, 2006 -- Rev. 4

Publication Order Number:

MC74VHC257/D

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