74HC393D,653

The Nexperia 74HC393D,653 is a dual 4-stage binary ripple counter. Each counter has a clock input, an overriding asynchronous master reset input, and four buffered parallel outputs. The counter advances on the HIGH-to-LOW transition of the clock input. A HIGH on the master reset input clears the counter stages and forces the outputs LOW, independent of the clock state.

This device operates over a wide supply voltage range of 2.0 V to 6.0 V and has a maximum operating temperature of 125°C. It offers high noise immunity and low power dissipation characteristic of CMOS technology. The counter has a count rate of 107 MHz and a propagation delay of 190 ns.

Available in a 14-SOIC package, the 74HC393D,653 is suitable for surface mount applications. It complies with JEDEC standards JESD8C and JESD7A. ESD protection is provided for both Human Body Model (HBM) and Charged Device Model (CDM).

Key features include two independent 4-bit binary counters, individual clocks, and two master resets for clearing each counter. The input levels are CMOS for the 74HC393 and TTL for the 74HCT393 variant. This makes it a versatile component for various digital logic applications requiring counting or division.