74LS193 4-Bit Synchronous Up/Down Binary Counter | TTL Logic | DIP-16

Description

The 74LS193 is a high-speed TTL 4-bit synchronous up/down binary counter. It features separate clock inputs for “count up” and “count down,” allowing it to count in either direction. The device is fully synchronous, meaning all four outputs change state simultaneously, which eliminates the “glitching” or “ripple” effect common in asynchronous counters.

This IC includes a parallel load capability, allowing the counter to be preset to any binary value from 0 to 15. It also features an asynchronous clear (reset) input that forces all outputs to a LOW state. Because it is a 4-bit device, it can be easily cascaded with additional 74LS193 chips to create larger multi-bit counters without the need for additional external logic.

Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.

Features

• 4-bit synchronous binary counting
• Dual clock inputs: one for UP, one for DOWN
• Asynchronous clear (reset) input
• Parallel data load inputs (jam inputs)
• Carry and Borrow outputs for easy cascading
• Standard TTL (74LS) logic levels
• DIP-16 through-hole package

Benefits

• Synchronous operation ensures stable, glitch-free outputs
• Bidirectional counting capability is ideal for position tracking and bi-directional motion systems
• Cascading feature allows for building large-scale counters easily
• Preset functionality allows for starting the count at a specific value

Applications

• Up/Down Digital Counters
• Position Encoders and Tracking
• Programmable Dividers
• Sequential Control and State Machines
• Event Counting

Package Includes

• 1 x 74LS193 4-Bit Synchronous Up/Down Binary Counter IC (DIP-16 Package)

Specifications