SN74HC4040NS

Counter Dividers Overview

The SN74HC4040NS is a 12-stage asynchronous binary counter in a 16-pin SO package. It operates on a supply voltage of 2 V to 6 V and supports an operating temperature range of -40°C to 85°C. The device features negative-edge triggered clocking, asynchronous clear functionality, and outputs available for all stages. Maximum clock frequency reaches 33 MHz at 6 V, with typical propagation delay of 12 ns.

Counter Dividers Feature Summary

• Provides 12 external output stages for asynchronous binary counting
• Asynchronously clears all outputs upon receiving a high-level signal at the clear input
• Advances count state on high-to-low transitions at the clock input
• Capable of driving up to 10 LSTTL loads

Counter Dividers Applications

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

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'NS' corresponds to the 16-pin Small Outline (SO) package variant when sourcing. Confirm that the component meets the required RoHS compliance standards and matches the specified -40°C to 85°C operating temperature range for your application environment.

Counter Dividers Selection Notes

Select this component for designs requiring a 12-bit asynchronous binary counter with all stage outputs accessible. Ensure the system logic levels are compatible with the HC series specifications and that the maximum clock frequency requirements do not exceed the limits defined by the operating voltage.

Counter Dividers Part Context

This part belongs to the Texas Instruments SN74HC4040 family of 12-bit asynchronous binary counters. The NS suffix specifically designates the 16-pin Small Outline package format, distinguishing it from other variants such as the PDIP or TSSOP options within the same functional family.

Counter Dividers Replacement Considerations

SN74HC4040DR

Counter Dividers FAQ

How does the clear function operate?

A high level at the clear input asynchronously resets all outputs to a low state, regardless of the clock input status.

What triggers the count advancement?

The count advances on a high-to-low transition at the clock input.