ON Semiconductor MC74HC163A Synchronous Binary Counter

The MC74HC163A from ON Semiconductor is a high-performance, synchronous 4-bit binary counter integrated circuit, designed for counting applications in a wide range of digital systems. It is fabricated using silicon gate CMOS technology which ensures low power consumption and a robust, high-speed performance.

This precision counter features a parallel or serial count operation mode, providing versatility for different types of counting needs. The synchronous operation of the MC74HC163A is provided by having all flip-flops clocked simultaneously, so the outputs change coincident with each other when instructed by the count-enable inputs and internal gating. This feature allows for high-speed operation in a sequential system while minimizing the risk of output glitches.

The MC74HC163A counter has a dedicated clear function, which is asynchronous, meaning it can reset the count to zero regardless of the clock input, ensuring a quick and effective reset capability. Furthermore, the counter can be cascaded in the high-speed synchronous mode because of the look-ahead-carry feature, which facilitates the handling of high-speed counting sequences.

The device operates from a standard 2V to 6V V_CC supply voltage range, making it compatible with a variety of logic families and system voltages. Its outputs can drive up to 10 LSTTL loads, which is beneficial for interfacing with other logic families within a system. Additionally, the MC74HC163A has a low input current of 1µA max, and a low quiescent current of 80nA max (typical at V_CC = 5V), making it an excellent choice for power-sensitive applications.

ON Semiconductor's MC74HC163A comes in a compact 16-pin package, which is convenient for space-constrained applications. Whether it's for use in computers, instrumentation, control systems, or other digital logic applications, the MC74HC163A is a reliable and efficient solution for your synchronous counting needs.

For more detailed information, including operating conditions, electrical characteristics, and pin configurations, please refer to the official datasheet provided by ON Semiconductor.