74LS193 Binary Up/Down Counter with Clear IC (74193 IC) DIP-16 Package

The 74LS193 is a high-speed 4-bit synchronous binary Up/Down Counter IC designed for digital counting and sequencing applications. It is capable of counting both upward and downward in binary from 0 to 15 (modulo-16), making it suitable for a wide range of digital logic circuits. The IC features separate clock inputs for count-up and count-down operations, allowing easy implementation of bidirectional counting without additional logic.

The counter operates synchronously, meaning all output bits change simultaneously on the rising (LOW-to-HIGH) edge of the selected clock input, ensuring accurate and glitch-free counting. The Clear (CLR) input asynchronously resets the counter outputs to zero, while the Parallel Load (PL) input allows a preset 4-bit value to be loaded directly into the counter for flexible counting operations.

The 74LS193 also provides Terminal Count Up (TCU) and Terminal Count Down (TCD) outputs, enabling simple cascading of multiple counters to create higher-bit counting systems without requiring extra external circuitry. Built using Low-Power Schottky TTL technology, the IC offers fast switching speed, reliable operation, and compatibility with standard TTL logic families.

The 74LS193 is widely used in digital counters, frequency division circuits, timers, event counters, industrial control systems, embedded electronics, instrumentation, and educational digital logic projects.

Features

• 4-bit synchronous binary Up/Down counter.

• Counts from 0 to 15 (modulo-16).

• Separate clock inputs for count-up and count-down operations.

• Synchronous counting with simultaneous output transitions.

• Asynchronous Clear (CLR) input for instant reset.

• Parallel Load (PL) input for presetting the counter.

• Terminal Count Up (TCU) and Terminal Count Down (TCD) outputs for cascading.

• Low-Power Schottky TTL (LS TTL) technology.

• Fast switching speed and reliable performance.

• Operates from a standard 5V supply.

• TTL compatible.

• Available in a 16-pin DIP package for easy PCB mounting and prototyping.

Applications

• Binary counting systems

• Up/Down digital counters

• Frequency divider circuits

• Event counting

• Timer and clock circuits

• Digital instrumentation

• Industrial automation

• Position and motion control systems

• Embedded systems

• Robotics projects

• Digital logic laboratories

• Educational and prototyping applications