74LS191 IC 4-Bit Arithmetic Logic Unit DIP-16 74LS191

Product Overview

The SN74LS191 is a synchronous 4-bit reversible up/down binary counter. It features synchronous operation, where all flip-flops are clocked simultaneously to eliminate output counting spikes typically associated with asynchronous counters. The device is fully programmable, allowing outputs to be preset via data inputs, and it includes dedicated outputs for cascading, such as a ripple clock and a maximum/minimum count output.

Core Specifications

Manufacturer: Texas Instruments

 Function: 4-Bit Synchronous Up/Down Binary Counter