74HC93 4-Bit Binary Ripple Counter IC (DIP-14 Package)

The 74HC93 is a high-speed CMOS 4-bit binary ripple counter integrated circuit designed for digital counting, frequency division, and timing applications. Manufactured using advanced silicon-gate CMOS technology, it delivers high-speed performance with low power consumption while remaining pin compatible with Low-Power Schottky TTL (LS-TTL) logic devices. The IC complies with JEDEC Standard No. 7A, making it suitable for a wide range of digital electronic systems.

The 74HC93 consists of four internally connected master-slave flip-flops arranged as a divide-by-2 section and a divide-by-8 section. These sections have separate clock inputs (CP0 and CP1), allowing the device to operate in different counting configurations. By externally connecting the Q0 output to the CP1 input, the IC functions as a 4-bit binary ripple counter, providing frequency division by 2, 4, 8, and 16 at outputs Q0, Q1, Q2, and Q3, respectively. It can also be configured as a 3-bit ripple counter for divide-by-2, divide-by-4, and divide-by-8 operations.

The IC includes two asynchronous master reset inputs (MR1 and MR2) that immediately clear all flip-flops regardless of the clock signals, allowing fast and reliable counter initialization. Since the outputs change sequentially due to ripple delays, temporary decoding spikes may occur, making the outputs unsuitable for use as clock or strobe signals in sensitive applications.

The 74HC93 operates over a 2V to 6V supply voltage range and offers high noise immunity, making it suitable for digital logic circuits, embedded systems, industrial automation, and educational electronics projects. Its low power consumption, reliable performance, and flexible counting modes make it a popular choice for frequency division and pulse counting applications.

Features

• 4-bit binary ripple counter

• High-speed CMOS technology

• Low power consumption

• Pin compatible with LS-TTL logic family

• Divide-by-2 and divide-by-8 counter sections

• Frequency division by 2, 4, 8, and 16

• Separate clock inputs (CP0 and CP1)

• Dual asynchronous master reset inputs (MR1 and MR2)

• Wide operating voltage range: 2V to 6V

• High noise immunity

• Standard DIP-14 package

• Reliable and stable digital operation

Applications

• Frequency divider circuits

• Digital counters

• Pulse counting systems

• Digital clocks and timers

• Event counting applications

• Embedded systems

• Industrial automation

• Signal processing circuits

• Educational electronics projects

• General-purpose digital logic circuits