MC74HC4040AFG

Counter Dividers Overview

The MC74HC4040AFG is a 12-stage binary ripple counter manufactured by onsemi in the SOEIAJ-16 package. It operates within a supply voltage range of 2.0 V to 6.0 V and supports an operating temperature range from -55°C to +125°C. The device features asynchronous active-high reset and negative-edge clock triggering. Maximum clock frequency reaches 50 MHz at 6.0 V, with propagation delays ranging from 14 ns to 96 ns depending on voltage and temperature.

Counter Dividers Feature Summary

• Consists of 12 master-slave flip-flops for binary counting
• Outputs directly interface to CMOS, NMOS, and TTL logic families
• Asynchronous active-high reset forces all outputs low
• High noise immunity characteristic of high-performance silicon-gate CMOS

Counter Dividers Applications

• Time-base generator circuits
• Frequency division applications
• Digital counting systems

Counter Dividers Procurement Notes

Verify the specific ordering suffix FG corresponds to the SOEIAJ-16 package configuration as documented in the official datasheet. Confirm RoHS compliance status and Pb-Free designation for the specific batch. Ensure technical specifications match system requirements before procurement.

Counter Dividers Selection Notes

Select this component for designs requiring a 12-bit binary counter with wide voltage tolerance. Consider the ripple delay characteristics when decoding output signals, as state changes are not simultaneous. Verify that the SOEIAJ-16 package fits the available PCB footprint constraints.

Counter Dividers Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It is functionally compatible with standard CMOS outputs and LSTTL outputs when pullup resistors are used. The device is part of a broader family of binary counters and dividers offered by onsemi.

Counter Dividers Replacement Considerations

MC74HC4040AD (SOIC-16), MC74HC4040AN (PDIP-16). These parts share identical electrical functionality but differ in physical package dimensions and pinout compatibility.

Counter Dividers FAQ

How does the reset function operate?

The reset is asynchronous and active-high. Applying a high level to the Reset input asynchronously resets the counter to its zero state, forcing all Q outputs low.

What causes decoding spikes in the output?

State changes of the Q outputs do not occur simultaneously due to internal ripple delays. This can result in decoded output signals being subject to decoding spikes.