CD4040BNSR

Counter Dividers Overview

The CD4040BNSR is a CMOS ripple-carry binary counter manufactured by Texas Instruments, belonging to the 4000B logic series. It features a 12-bit asynchronous up-counter architecture housed in a 16-SOIC surface-mount package. The device operates within a supply voltage range of 3 V to 18 V and supports a maximum clock frequency of 24 MHz at 10 V. It includes an asynchronous reset input and negative-edge-triggered flip-flops. Operating temperatures span from -55°C to +125°C, ensuring reliability across industrial and commercial environments.

Counter Dividers Feature Summary

• Provides 12-stage asynchronous binary counting capability with ripple-carry output for cascading applications.
• Features an asynchronous reset input that clears all flip-flops independently of the clock signal.
• Utilizes negative-edge-triggered flip-flops to synchronize state changes on the falling edge of the clock pulse.

Counter Dividers Applications

• Frequency division circuits requiring stable divide-by-N ratios.
• Digital timing sequences and event counters in embedded systems.
• Cascaded multi-stage counting systems utilizing the ripple-carry output.

Counter Dividers Procurement Notes

Verify the specific suffix 'NSR' confirms the SOIC-16 surface-mount packaging and tape-and-reel shipping configuration. Confirm RoHS compliance status and lead times directly with Texas Instruments or authorized distributors, as these parameters are subject to change based on manufacturing availability and regional regulations.

Counter Dividers Selection Notes

Select this component when a 12-bit asynchronous counter is required in a surface-mount design. Ensure the application voltage remains within the 3 V to 18 V operational range. Consider the propagation delay characteristics if high-speed synchronous operation is critical, as ripple counters introduce cumulative delays compared to synchronous alternatives.

Counter Dividers Part Context

This part is a surface-mount variant of the CD4040B family, designed for integration into modern printed circuit boards. It serves as a digital logic element within the broader CMOS 4000 series ecosystem, providing standard binary counting functions compatible with other 4000-series logic gates and interfaces.

Counter Dividers Replacement Considerations

CD4040BE (PDIP-16 through-hole equivalent), CD4040BNSRE4 (RoHS-compliant version of NSR), CD4040BNSRG4 (Lead-free compliant version).