SN74HC688DW - Texas Instruments

Manufacturer Part Number

SN74HC688DW

Manufacturer

Texas Instruments

Introduction

The SN74HC688DW is a high-performance identity comparator designed by Texas Instruments, tailored for logic comparison applications.

Product Features and Performance

Features 8-bit comparison capability

Outputs an active low signal when inputs match (A=B)

Supports a broad voltage supply range from 2V to 6V

Provides high output current capabilities of 5.2mA for both high and low states

Achieves fast operation with max propagation delay of 36ns at 6V and 50pF load

Extremely low quiescent current at 8 µA, enhancing energy efficiency

Operates reliably in a wide temperature range from -40°C to 85°C

Product Advantages

High precision 8-bit identity comparison

Flexible power supply compatibility

Energy-efficient with low power consumption

Fast response time suitable for high-speed applications

Works reliably under extreme temperatures

Key Technical Parameters

Number of Bits: 8

Output: Active Low

Voltage Supply: 2V ~ 6V

Current Output High, Low: 5.2mA

Max Propagation Delay @ V, Max CL: 36ns

Operating Temperature: -40°C ~ 85°C

Package / Case: 20-SOIC

Quality and Safety Features

Manufactured under Texas Instruments' stringent quality control standards

Compatibility

Surface mount technology (SMT) for easy PCB integration

Compatible with various microcontrollers and logic circuits operating within its voltage supply range

Application Areas

Digital systems requiring precise 8-bit data comparison

Computer systems, data processing units, and peripheral devices

Industrial control systems

Automation and robotics where identity comparison is essential

Product Lifecycle

Discontinued at Digi-Key, indicating it may be nearing end of life with limited availability

Users should seek replacements or upgrades for long-term projects

Several Key Reasons to Choose This Product

Trusted manufacturing by Texas Instruments ensures high reliability and performance

8-bit precision comparison allows for detailed data analysis and processing

Low power consumption and high efficiency make it suitable for battery-operated devices

Fast operational speed aids in improving overall system performance

Wide temperature and voltage operating ranges allow versatility across different environments and applications