SN74HC4040PWR

Counter Dividers Overview

The SN74HC4040PWR is a 12-stage asynchronous binary counter from the Texas Instruments 74HC series. It operates on a supply voltage of 2 V to 6 V and features an asynchronous clear input that resets all outputs low when high. Counting advances on the high-to-low transition of the clock input. The device provides external access to all stage outputs, supports up to 10 LSTTL loads, and consumes a maximum supply current of 80 µA. It is housed in a 16-pin TSSOP package.

Counter Dividers Feature Summary

• Provides 12 independent binary output stages for comprehensive state monitoring
• Asynchronous clear function allows immediate reset of all outputs regardless of clock state
• Counting operation triggered by negative-going transitions at the clock input
• Capable of driving standard LSTTL logic loads directly

Counter Dividers Applications

• Time-delay circuits
• Counter controls
• Frequency-dividing circuits

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'PWR' corresponds to the TSSOP-16 package with tape-and-reel carrier. Confirm RoHS compliance and lead finish details via the manufacturer's official orderable addendum or datasheet packaging section before finalizing procurement specifications.

Counter Dividers Selection Notes

Select this component for designs requiring a 12-bit asynchronous count sequence within the HC logic family voltage range. Ensure the application utilizes negative-edge clocking and accommodates the propagation delays inherent to asynchronous architectures rather than synchronous alternatives.

Counter Dividers Part Context

This part belongs to the SNx4HC4040 family of 12-bit asynchronous binary counters manufactured by Texas Instruments. The 'SN74' prefix indicates commercial grade temperature ratings (-40°C to 85°C), distinguishing it from the military-grade SN54 variant which supports -55°C to 125°C.

Counter Dividers Replacement Considerations

SN74HC4040PWRG4 is a verified equivalent offering identical electrical and mechanical specifications.