SN74HC161DR

Counter Dividers Overview

The SN74HC161DR is a high-speed CMOS logic device manufactured by Texas Instruments, functioning as a 4-bit synchronous binary up-counter. It operates within a supply voltage range of 2 V to 6 V and utilizes a 16-pin SOIC package. The component features asynchronous reset capability and supports clock frequencies up to 44 MHz at 5 V. It includes parallel data inputs for preset functionality and provides ripple carry output (RCO) for cascading applications. The device is designed for industrial temperature ranges, typically operating between -40°C and +85°C.

Counter Dividers Feature Summary

• Synchronous 4-bit binary counting with positive edge triggering
• Asynchronous master reset input for immediate clearing
• Parallel data loading capability via dedicated preset inputs
• Ripple carry output (RCO) facilitates multi-stage counter expansion

Counter Dividers Applications

• Digital frequency division circuits
• Time-base generation in timing systems
• Position tracking in digital control systems
• Event counting in measurement instrumentation

Counter Dividers Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type, temperature grade, and RoHS compliance status. Ensure the ordering part number matches the required SOIC-16 variant and operational specifications. Cross-reference datasheet revisions to confirm pinout consistency and electrical characteristics before finalizing procurement orders.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit binary counter with asynchronous reset is required in a surface-mount design. It is suitable for applications needing parallel load functionality and cascading capabilities via the ripple carry output. Verify that the operating voltage and temperature range align with the system requirements compared to other 74HC series alternatives.

Counter Dividers Part Context

This component belongs to the Texas Instruments SN74HC161 family of high-speed CMOS logic devices. It is part of the broader 74HC series, known for compatibility with standard CMOS logic levels. The DR suffix indicates a specific tape-and-reel packaging format within the SOIC-16 footprint, distinguishing it from tube-packaged or through-hole variants like the N suffix.

Counter Dividers Replacement Considerations

Public confirmed substitutes include CD74HC161M96 and SN74HC161NS. Verify pinout compatibility and electrical parameters before substitution.