MC74ACT163DR2

Counter Dividers Overview

The MC74ACT163DR2G is a high-speed synchronous modulo-16 binary counter from the 74ACT series, manufactured by onsemi. It features a 4-bit up-counting sequence with synchronous presettable loading capabilities. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a typical count rate of 125 MHz. It includes two Count Enable inputs (CEP and CET) and a Terminal Count output for multistage expansion. Unlike the asynchronous reset variant, this model utilizes a Synchronous Reset input that clears outputs on the rising clock edge. It is housed in a 16-lead SOIC package.

Counter Dividers Feature Summary

• Synchronous counting and parallel loading triggered by the positive edge of the clock signal
• TTL-compatible inputs allowing direct interfacing with standard logic families
• High-speed synchronous expansion capability via dedicated Count Enable and Terminal Count pins
• Outputs capable of sourcing and sinking 24 mA for robust drive performance

Counter Dividers Applications

• Programmable frequency dividers
• Synchronous multistage counter configurations
• Digital timing and sequencing circuits

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'DR2G' corresponds to the SOIC-16 tape and reel packaging configuration. Confirm RoHS compliance status as indicated by the 'G' suffix in official documentation. Ensure the procurement channel sources genuine onsemi components to guarantee electrical parameter adherence and reliability standards.

Counter Dividers Selection Notes

Select this component when a synchronous reset function is required rather than an asynchronous master reset. It is suitable for designs needing TTL-compatible input thresholds within a strict 5V logic environment. Consider the 74AC163 if a wider voltage range including 3.3V operation is necessary, as the ACT series is optimized for 5V applications.

Counter Dividers Part Context

This part belongs to the MC74AC161/ACT161 and MC74AC163/ACT163 family of high-speed synchronous binary counters. The ACT variant specifically provides TTL-compatible inputs while maintaining CMOS low power characteristics. It shares functional similarities with the AC series but differs in input threshold specifications and operating voltage constraints.

Counter Dividers Replacement Considerations

MC74AC163DR2G serves as a broader voltage alternative within the same datasheet family.