Texas Instruments

SN74HC193D

SN74HC193D Description

The SN74HC193D from Texas Instruments is a high-speed 4-bit synchronous up/down binary counter designed for precision counting applications. Housed in a 16-SOIC package, this IC operates within a 2V to 6V supply range, making it compatible with a variety of logic levels. It features synchronous counting with a 24 MHz count rate, ensuring high-speed performance in digital systems. The device supports asynchronous reset and positive-edge triggering, providing flexibility in control and timing. As part of the 74HC series, it adheres to ROHS3 compliance and is classified under EAR99 for export control.

SN74HC193D Features

• 4-bit bidirectional counter with up/down counting capability.
• Synchronous operation ensures precise timing with a 24 MHz maximum count rate.
• Wide voltage range (2V–6V) for compatibility with TTL and CMOS logic levels.
• Asynchronous reset for immediate counter clearing.
• Positive-edge triggered clock inputs for reliable state transitions.
• Surface-mount (SOIC-16) packaging for compact PCB integration.
• ROHS3 compliant and REACH unaffected, meeting environmental standards.
• Last Time Buy status, indicating limited availability for legacy designs.

SN74HC193D Applications

The SN74HC193D is ideal for applications requiring high-speed counting and bidirectional control, such as:

• Digital frequency dividers in communication systems.
• Programmable logic controllers (PLCs) for industrial automation.
• Event counters in test and measurement equipment.
• Position tracking in motor control systems.
• Clock division in microcontroller-based designs.
  Its synchronous operation and wide voltage range make it suitable for mixed-voltage environments, while its compact SOIC package is optimal for space-constrained designs.

Conclusion of SN74HC193D

The SN74HC193D stands out as a versatile, high-performance binary counter with bidirectional counting, synchronous operation, and robust voltage compatibility. Its 24 MHz speed and asynchronous reset make it a reliable choice for high-speed digital systems, while its Last Time Buy status suggests it remains valuable for legacy or long-lifecycle projects. Engineers designing counters, dividers, or sequential logic circuits will find this IC a dependable solution.