SN74HC161D

Counter Dividers Overview

The SN74HC161D is a synchronous 4-bit binary counter manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports a maximum clock frequency of 36 MHz at 5 V. The device features asynchronous reset, parallel data loading capabilities, and ripple clock outputs. It is housed in a 16-SOIC surface-mount package with an operating temperature range of -40°C to +85°C.

Counter Dividers Feature Summary

• Synchronous four-bit binary counting with positive-edge triggering
• Asynchronous master reset input for immediate clearing
• Parallel data loading capability via dedicated inputs
• Ripple clock output for cascading multiple counters

Counter Dividers Applications

• Digital timing and sequencing circuits
• Frequency division networks
• Event counting systems
• Cascaded multi-stage counter designs

Counter Dividers Procurement Notes

Verify the specific suffix 'D' confirms the SOIC-16 surface mount package variant. Confirm RoHS compliance status as indicated by the manufacturer's current documentation. Ensure the operating environment falls within the specified -40°C to +85°C temperature range. Validate that the supply voltage remains between 2 V and 6 V for proper logic level operation.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit binary counter is required in a surface-mount design. The HC series offers compatibility with standard CMOS logic levels. Consider the 36 MHz maximum speed for high-frequency applications. Verify pinout compatibility if replacing legacy through-hole variants like the DIP-16 version.

Counter Dividers Part Context

This part belongs to the Texas Instruments SN74HC161 family of synchronous binary counters. It shares functional characteristics with other members of the 74HC16x series but differs in packaging and specific electrical parameters. The 'D' suffix specifically denotes the small-outline integrated circuit (SOIC) package format suitable for automated surface-mount assembly processes.

Counter Dividers Replacement Considerations

SN74HC161DR: Same function in tape-and-reel packaging. SN74HC161DBR: Same function in tape-and-reel packaging.