MC74AC163DR2G

Counter Dividers Overview

The MC74AC163DR2G is a high-speed synchronous modulo-16 binary counter from the 74AC logic series, manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 6.0 V and features four fundamental modes: asynchronous reset (for 74AC161), synchronous reset, parallel load, count-up, and hold. The device utilizes D-type edge-triggered flip-flops with parallel clock inputs. It includes two Count Enable inputs (CEP, CET) and a Terminal Count output for multistage expansion. Packaged in SOIC-16, it supports synchronous presettable applications.

Counter Dividers Feature Summary

• Synchronous counting and loading capabilities using D-type edge-triggered flip-flops
• High-speed synchronous expansion via Terminal Count output and dual Count Enable inputs
• Four distinct operational modes including synchronous reset, parallel load, and count-up

Counter Dividers Applications

• Programmable frequency dividers
• Synchronous multistage counters
• Digital timing circuits requiring precise state sequencing

Counter Dividers Procurement Notes

Verify the specific suffix 'DR2G' corresponds to the SOIC-16 package and tape & reel shipping configuration. Confirm RoHS compliance status as indicated by the 'G' suffix. Ensure the ordering quantity aligns with the standard factory pack size of 2500 units if full reels are required. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Counter Dividers Selection Notes

Select this component when a synchronous modulo-16 binary counter is required with a wide operating voltage range up to 6.0 V. The AC series offers higher speed performance compared to HC variants. Consider the synchronous reset feature of the 163 variant over the asynchronous reset of the 161 variant for glitch-free operation. Verify that the SOIC-16 package dimensions fit the target PCB layout constraints.

Counter Dividers Part Context

This part belongs to the MC74AC161/ACT161 and MC74AC163/ACT163 family of high-speed synchronous binary counters. The AC series denotes CMOS technology optimized for speed and power efficiency. The DR2G designation specifically identifies the SOIC-16 surface-mount package with lead-free construction and tape-and-reel packaging for automated assembly processes.

Counter Dividers Replacement Considerations

MC74AC163DT is available in TSSOP-16 package. MC74ACT163DR2G is the TTL-compatible input variant within the same package.