SN74LS191N - Texas Instruments

Manufacturer Part Number

SN74LS191N

Manufacturer

Texas Instruments

Introduction

4-bit synchronous binary up/down counter

Part of the 74LS series of integrated circuits

Product Features and Performance

4-bit binary counter with synchronous operation

Counts up or down based on direction control input

Maximum count rate of 25 MHz

Positive edge-triggered operation

Product Advantages

Synchronous design for reliable counting

Wide operating voltage range of 4.75V to 5.25V

Robust through-hole package for secure mounting

Key Technical Parameters

4-bit counter with single element

16-pin DIP (Dual Inline Package) package

0°C to 70°C operating temperature range

RoHS3 compliant

Quality and Safety Features

Designed and manufactured to high quality standards

Robust construction for reliable long-term operation

Compliant with relevant safety and environmental regulations

Compatibility

Compatible with other 74LS series logic ICs

Suitable for a wide range of digital circuit applications

Application Areas

Digital counters and control systems

Timer and frequency division circuits

Industrial automation and control equipment

Product Lifecycle

Currently in active production

Replacement or upgrade options available from Texas Instruments

Several Key Reasons to Choose This Product

Reliable synchronous counting operation

High-speed 25 MHz count rate performance

Robust and compact through-hole package design

Wide operating voltage and temperature range

Compatibility with other 74LS series logic ICs

Manufactured by a trusted industry leader, Texas Instruments