CD74HCT688E - Harris Corporation

Manufacturer Part Number

CD74HCT688E

Manufacturer

Texas Instruments

Introduction

The CD74HCT688E is a high-performance CMOS Identity Comparator designed for logic comparison operations. It belongs to the 74HCT series, offering compatibility with TTL logic levels.

Product Features and Performance

Offers 8-bit identity comparison

Provides active low output

Features A=B output function indicating when two 8-bit inputs match

Operates across a supply voltage range of 4.5V to 5.5V

Low current consumption with 8 µA quiescent current

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

High noise immunity characteristic of CMOS devices

Supports operating temperatures from -55°C to 125°C

Product Advantages

Enhanced logic analysis capability for complex digital systems

Low power consumption enhances system efficiency

High precision and speed improve system reliability

Broad compatibility with TTL logic levels facilitates integration into mixed-technology systems

Key Technical Parameters

Number of Bits: 8

Output: Active Low

Voltage Supply: 4.5V to 5.5V

Current Output High, Low: 4mA

Max Propagation Delay: 34ns at 4.5V, 50pF

Operating Temperature Range: -55°C to 125°C

Package: 20-DIP

Quality and Safety Features

Manufactured by Texas Instruments, a leader in semiconductor solutions, ensuring high reliability and performance

Compliant with stringent industry standards for quality and safety

Compatibility

Through-hole mounting design ensures compatibility with a wide range of printed circuit boards

74HCT TTL logic level compatibility facilitates easy integration into existing designs without needing level shifters

Application Areas

Digital signal matching

Complex logic circuits

System monitoring and control

Telecommunications

Computer systems

Product Lifecycle

Status: Active, indicating ongoing production and availability

No immediate indication of discontinuation, ensuring long-term availability for new designs and maintenance of existing systems

Several Key Reasons to Choose This Product

Precision 8-bit comparison capability enables accurate system monitoring and control

Low power consumption and high-speed operation contribute to efficient system design

Broad operating temperature range supports use in demanding environmental conditions

Compatibility with TTL logic levels allows for flexible integration into various digital systems

Long-term product availability supports projects with extended lifecycle requirements