MC74HC4040ADR2G

Counter Dividers Overview

The MC74HC4040ADR2G is a 12-stage binary ripple counter manufactured by onsemi using high-performance silicon-gate CMOS technology. It operates within a supply voltage range of 2.0 V to 6.0 V and supports a maximum clock frequency of 50 MHz at 6.0 V. The device features an asynchronous active-high reset input that forces all outputs low. Outputs Q1 through Q12 provide frequency division, with each stage dividing the preceding frequency by two. It utilizes negative-edge triggering for state advancement and is housed in a 16-lead SOIC package.

Counter Dividers Feature Summary

• Consists of 12 master-slave flip-flops arranged as a binary ripple counter
• Outputs directly interface to CMOS, NMOS, and TTL logic families
• Asynchronous active-high reset function clears all outputs simultaneously
• Negative-edge triggered clock input advances the count sequence

Counter Dividers Applications

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

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'R2G' corresponds to the SOIC-16 tape and reel packaging configuration. Confirm RoHS compliance and lead-free status requirements against project specifications. Ensure the selected component matches the exact datasheet revision for timing parameters. Validate that the operating temperature range meets environmental constraints.

Counter Dividers Selection Notes

Select this component when a 12-bit binary counting capability is required with standard CMOS compatibility. Consider the internal ripple delay characteristics which cause non-simultaneous output transitions. Verify that decoded signals can tolerate potential decoding spikes or implement gating if necessary. Ensure the application does not require synchronous output updates.

Counter Dividers Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It shares pinout compatibility with the standard CMOS MC14040 family. The device is designed for general-purpose digital logic applications requiring reliable binary counting functions within standard industrial temperature ranges.

Counter Dividers Replacement Considerations

MC74HC4040ADTR2G (TSSOP-16 variant)

Counter Dividers FAQ

How does the reset function operate?

The reset input is asynchronous and active-high. Applying a high level to the Reset pin forces all Q outputs low immediately, regardless of the clock state.

What causes decoding spikes in this counter?

State changes of the Q outputs do not occur simultaneously due to internal ripple delays between the cascaded flip-flops. This propagation delay can result in transient decoding spikes.