Manufacturer Part Number
SN54LS191J
Manufacturer
Texas Instruments
Introduction
The SN54LS191J is a synchronous up/down binary counter from Texas Instruments' 54LS series, designed specifically for high-speed counting applications.
Product Features and Performance
Synchronous operation for precise counting
Capable of counting in both up and down modes
Supports asynchronous reset
Positive edge-triggered functionality
Supports a count rate of up to 25 MHz
Product Advantages
High-speed performance suited for various applications
Flexible voltage supply range from 4.5 V to 5.5 V
Robust operating temperature range of -55°C to 125°C
Through hole mounting for secure and reliable connections
Key Technical Parameters
Logic Type: Binary Counter
Direction: Up, Down
Number of Elements: 1
Number of Bits per Element: 4
Timing: Synchronous
Count Rate: 25 MHz
Voltage - Supply: 4.5 V ~ 5.5 V
Operating Temperature: -55°C ~ 125°C
Quality and Safety Features
Wide operating temperature for reliability in extreme conditions
Constructed in 16-CDIP package for durability and longevity
Compatibility
Compatible with other 54LS series logic components
Application Areas
Industrial electronics
Automated systems
Data processing equipment
High-speed digital systems
Product Lifecycle
Currently active with ongoing manufacturer support
Not nearing discontinuation; replacements and upgrades available within Texas Instruments portfolio
Several Key Reasons to Choose This Product
High count rate suitable for time-sensitive applications
Bi-directional counting increases application versatility
Wide operating temperature enables usage in challenging environments
Compatible with common supply voltages for easy integration
Robust through-hole package ensures long-term reliability