CD74HCT251M - Harris Corporation

Manufacturer Part Number

CD74HCT251M

Manufacturer

Texas Instruments

Introduction

The CD74HCT251M is a high-speed CMOS logic 8-input multiplexer with three-state outputs from the 74HCT series, specifically designed for high-performance data routing applications.

Product Features and Performance

Single 8-input multiplexer configuration

Three-state outputs enhance circuit flexibility

High-speed performance with typical tPD of 13 ns

Low power consumption, with ICC of 4 µA max

Wide operating temperature range of -55°C to 125°C

Compatible with TTL inputs making integration simpler

Product Advantages

Exceptionally robust operating temperature range ideal for demanding environments

Low quiescent current enhances power efficiency

Fast propagation delay helps in improving system speed

Key Technical Parameters

Circuit configuration: 1 x 8:1

Output Current (High, Low): 4mA, 4mA

Voltage Supply: Single Supply, 4.5V ~ 5.5V

Quality and Safety Features

Over-temperature protection

ESD Protection exceeding JESD 22

Compatibility

Compatible with TTL technology

Can be used in systems needing level translation from higher to lower voltages

Application Areas

Digital data multiplexing

Data routing in communication systems

Signal gating in computing and telecommunications

Input/output expansion

Product Lifecycle

Currently discontinued at Digi-Key

Potential replacements or upgrades should be consulted with Texas Instruments for newer alternatives

Several Key Reasons to Choose This Product

High reliability suited for industrial applications

Energy-efficient design with minimal power dissipation

Wide compatibility with existing TTL circuits simplifies design integration

Sturdy package design suitable for surface mounting with good board-level reliability

The availability of support from Texas Instruments for continuation or evolution of designs using this part.