SN74ALS521DW - Texas Instruments

Manufacturer Part Number

SN74ALS521DW

Manufacturer

Texas Instruments

Introduction

The SN74ALS521DW is a 8-bit identity comparator designed for use in logic comparison applications.

Product Features and Performance

8-bit identity comparator

Operates from a 4.5V to 5.5V supply voltage

Active low output indicating A=B

Maximum propagation delay of 20ns at 5V, 50pF

Supports an operating temperature range from 0°C to 70°C

Compatible with 20-SOIC surface mount packaging

Suitable for applications requiring direct interfacing to NMOS, PMOS, and CMOS

Logic level translation functionality due to mixed-technology operation possibility

Product Advantages

High-speed comparison of two 8-bit words

Low power consumption

High current output drive capability for outputs

Key Technical Parameters

Identity Comparator type

8 bits for precise digital comparison

Supply Voltage: 4.5V to 5.5V

Output current: 2.6mA (high), 24mA (low)

Propagation Delay: 20ns max with 5V power and 50pF load

Operating Temperature Range: 0°C to 70°C

Quality and Safety Features

Meets or exceeds the specifications in the Standard 74ALS series

Designed for improved electrical and thermal performance

Compatibility

Compatible with other ALS series logic devices

Easily interfaced with multiple logic families due to mixed-technology operation

Application Areas

Digital signal processing

Data transmission systems

High-speed computer logic comparisons

Communication systems for identity checking

Industrial electronics where bit comparison is needed

Product Lifecycle

Last Time Buy status indicates nearing end of lifecycle

Identification of replacement or upgrade paths will be necessary

Several Key Reasons to Choose This Product

Allows for efficient and quick comparison of two 8-bit words

Texas Instruments quality and reliability

Ideal for system upgrades or designs requiring high-speed logic comparison

Surface mount package aligns with modern PCB design standards

Provides design flexibility with logic level translation between different logic families

Built to handle a wide range of operating temperatures for various environments