CD74HC4020M

Counter Dividers Overview

The CD74HC4020M is a high-speed CMOS logic device functioning as a 14-stage binary ripple counter. It features a clock input (CP), an overriding asynchronous master reset input (MR), and twelve buffered parallel outputs (Q0, Q3 to Q13). The counter advances on the HIGH-to-LOW transition of the clock signal. A HIGH level on the MR input clears all counter stages and forces all outputs LOW, independent of the clock state. Each stage utilizes a static toggle flip-flop design.

Counter Dividers Feature Summary

• Provides 14-stage binary counting capability with asynchronous master reset functionality
• Features twelve buffered parallel outputs for direct data access
• Incorporates input clamp diodes to allow interfacing with voltages exceeding VCC using current limiting resistors

Counter Dividers Applications

• Frequency dividing circuits
• Time delay circuits
• Control counters

Counter Dividers Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and temperature range. Ensure compatibility with system voltage requirements, as the device supports a wide supply range. Confirm that the asynchronous reset behavior aligns with the control logic design. Check for any recent product change notices regarding manufacturing status or pin configuration updates before finalizing procurement.

Counter Dividers Selection Notes

Select this component when a 14-bit binary count is required in a single integrated circuit. It is suitable for applications needing buffered outputs to drive multiple loads. Consider the HC series characteristics for low power dissipation and high noise immunity. Verify that the asynchronous reset requirement matches the system's initialization needs. Ensure the operating temperature range meets the environmental specifications of the target application.

Counter Dividers Part Context

This part belongs to the Texas Instruments CD74HC4020 series of high-speed CMOS logic devices. It is functionally similar to other 14-stage binary counters but offers specific buffering and reset configurations. The device is designed for general-purpose digital counting applications requiring reliable performance across a wide voltage range.

Counter Dividers Replacement Considerations

SN74HC4020PW is listed as a parameter equivalent alternative by Texas Instruments.