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