CD74HCT688M - Harris Corporation

Manufacturer Part Number

CD74HCT688M

Manufacturer

Texas Instruments

Introduction

The CD74HCT688M is a high-speed CMOS logic identity comparator designed to function as an 8-bit equality detector.

Product Features and Performance

Operates as an 8-bit identity comparator

Active low output indicating when two 8-bit inputs are equal

High noise immunity characteristic of CMOS devices

Outputs can drive up to 10 LSTTL loads

Low power consumption

Fast propagation delay time: 34ns at 4.5V, 50pF

Product Advantages

High precision equality detection enhances system reliability

Low quiescent current (8 µA) for power efficiency

Wide operating temperature range (-55°C to 125°C) ensures functionality in extreme conditions

Compatibility with CMOS and LSTTL logic levels

Key Technical Parameters

Number of Bits: 8

Voltage Supply: 4.5V to 5.5V

Current Output High, Low: 4mA

Max Propagation Delay @ V, Max CL: 34ns @ 4.5V, 50pF

Current Quiescent (Iq): 8 µA

Operating Temperature: -55°C to 125°C

Package: 20-SOIC

Quality and Safety Features

Manufactured by Texas Instruments, known for high-quality standards

Extended operating temperature range ensures durability under various environmental conditions

Compatibility

Can interface with CMOS and LSTTL systems due to its logic level compatibility

Application Areas

Data comparison systems

Memory address verification

System troubleshooting aids

Digital data processing

Product Lifecycle

Discontinued at Digi-Key, indicating the product may be nearing the end of its lifecycle

Users may need to seek replacements or upgrades soon

Several Key Reasons to Choose This Product

Precision 8-bit identity comparison for high system reliability

Low power consumption paired with high noise immunity

Wide compatibility with CMOS and LSTTL logic levels

Suitable for a diverse range of application areas from data processing to system diagnostics

Manufactured by Texas Instruments, ensuring quality and reliability