SN74HC688DWR - Texas Instruments

Manufacturer Part Number

SN74HC688DWR

Manufacturer

Texas Instruments

Introduction

The SN74HC688DWR is a high-speed CMOS logic identity comparator designed for comparing two 8-bit binary or BCD words to output equality results.

Product Features and Performance

8-bit identity comparator functionality

Outputs active low when two 8-bit inputs are equal

Operates from 2V to 6V supply voltage range

Maximum propagation delay of 36ns at 6V supply with 50pF load

2mA output drive capability at both high and low levels

Low quiescent current of 8 µA

Wide operating temperature range of -40°C to 85°C

Product Advantages

Compatible with a wide range of supply voltages

High-speed comparison suitable for various applications

Low-power consumption enhancing battery life in portable devices

Industry-standard SOIC-20 package for easy integration

Key Technical Parameters

Number of Bits: 8

Output Function: A=B

Supply Voltage Range: 2V to 6V

Max Propagation Delay: 36ns @ 6V, 50pF

Quiescent Current: 8 µA

Output Current: 5.2mA (High & Low)

Quality and Safety Features

Built-in latch-up protection

Meets or exceeds industry standards for safety and reliability

Compatibility

Compatible with TTL logic levels

Interfacing capability with microprocessors and digital systems

Application Areas

Data processing systems

Digital comparison systems

Communication systems

Control systems

Portable devices

Product Lifecycle

Active status, not nearing discontinuation

Availability of replacements or upgrades typically announced by Texas Instruments if necessary

Key Reasons to Choose This Product

Precise and quick data comparison across two 8-bit words

Texas Instruments' reputation for reliable and industry-leading technology

Low power consumption making it suitable for energy-sensitive applications

High output drive current suitable for driving LEDs or other visual indicators

Wide operating temperature range supporting use in harsh environments

Ready availability in Tape & Reel packaging for automated assembly processes

Surface Mount technology for PCB space-saving and efficient manufacturing