74AC161SC

Counter Dividers Overview

The onsemi 74AC161SC is a high-speed synchronous modulo-16 binary counter housed in a 16-Lead Small Outline Integrated Circuit (SOIC) package. It features synchronous counting and loading, two count enable inputs for expansion, and an asynchronous Master Reset input that forces outputs LOW. The device supports programmable dividers and multistage counters via its Terminal Count output. Operating conditions include a supply voltage range of 2.0V to 6.0V and an operating temperature range of -40°C to +85°C.

Counter Dividers Feature Summary

• Synchronous presettable binary counting with parallel data loading capabilities
• Asynchronous Master Reset input overriding all other control signals
• High-speed synchronous expansion using dual Count Enable inputs and Terminal Count output

Counter Dividers Applications

• Programmable frequency dividers
• Synchronous multistage counter configurations
• Memory addressing systems

Counter Dividers Procurement Notes

Verify the specific ordering code suffix against manufacturer documentation to confirm package type and tape/reel availability. Ensure compatibility with system voltage levels and temperature ranges before procurement. Confirm RoHS compliance status through official datasheets or component databases.

Counter Dividers Selection Notes

Select this component for applications requiring synchronous binary counting with modulo-16 operation. Consider the AC logic family characteristics regarding speed and power consumption relative to ACT variants. Verify interface compatibility with driving circuits and ensure adequate load handling for the intended output configuration.

Counter Dividers Part Context

This part belongs to the 74AC161 series of synchronous presettable binary counters originally manufactured by Fairchild Semiconductor and now distributed under the onsemi brand. The series includes variants such as 74ACT161 with TTL-compatible inputs. The SC designation specifically identifies the 16-lead SOIC narrow package format.

Counter Dividers Replacement Considerations

Compatible substitutes include the 74ACT161SC for TTL-compatible input requirements. Other package variants like 74AC161SJ, 74AC161MTC, and 74AC161PC offer equivalent functionality in different physical form factors.