74LS193 IC 4-Bit Synchronous Up/Down Counter 74LS193

Product Overview

The SN74LS193 is a synchronous 4-bit up/down counter that provides high-speed counting in both directions. It is a synchronous device, meaning all flip-flops change states simultaneously in response to the clock inputs, which minimizes output spikes and decoding errors common in ripple counters.

Core Specifications

• Manufacturer: Texas Instruments

• Function: Synchronous 4-Bit Up/Down Counter (Dual Clock)

• Counting Modes: Independent count-up and count-down clock inputs allow for flexible direction control.

• Loading/Clearing: Individual preset inputs for each flip-flop allow the counter to be loaded to any value, and a fully independent clear input resets the counter to zero.

• Cascading: Internal circuitry is provided to allow for easy cascading (connecting multiple counters) to create larger counters without needing extra gates.

• Logic Family: Low-power Schottky (LS) TTL.

• Performance: Typical maximum count frequency of 32 MHz.