SN74HC257D - Texas Instruments

Manufacturer Part Number

SN74HC257D

Manufacturer

Texas Instruments

Introduction

The SN74HC257D is a quadruple 2-line to 1-line data selector/multiplexer with 3-state outputs.

Product Features and Performance

4 x 2:1 multiplexer circuits per chip

Output current of 7.8mA (high and low)

Single supply operation from 2V to 6V

Supports operating temperatures from -40°C to 85°C

Compatible with Bus hold circuitry to retain last active state during high impedance

Product Advantages

High noise immunity characteristic of CMOS devices

Low power consumption

Significant versatility provided by the 3-state outputs

Key Technical Parameters

Circuit Configuration: 4 x 2:1

Independent Circuits: 1

Output Current: 7.8mA, High and Low

Voltage Supply Range: 2V to 6V

Operating Temperature Range: -40°C to 85°C

Supply Source: Single

Quality and Safety Features

Constructed following stringent quality standards of Texas Instruments

Over-temperature and over-voltage protection

Compatibility

Compatible with 16-SOIC (0.154", 3.90mm Width) surface mount footprint

Compatible with TTL levels

Application Areas

Multiplexing signals for data selection in telecommunication

Data bus management and routing in computing systems

Signal gating in consumer electronics

Product Lifecycle

Discontinued at Digi-Key, alternatives may be available

Potential to find replacements or upgrades through direct contact with Texas Instruments

Reasons to Choose This Product

Proven reliability from an established manufacturer, Texas Instruments

Low power consumption suitable for battery-powered devices

Easy integration into systems with its standard SOIC package

Versatility in application ranging from telecommunication to computing

Industry-standard logic-level compatibility