M74HC4020B1R

Counter Dividers Overview

The M74HC4020B1R is a high-speed CMOS 14-stage binary ripple counter fabricated with silicon gate C2MOS technology. It features an asynchronous master reset input (CLEAR) and a negative-edge-triggered clock input (CP). The device provides twelve buffered parallel outputs corresponding to the 1st, 4th through 14th stages. It operates within a supply voltage range of 2V to 6V. Key electrical characteristics include a maximum clock frequency of 70 MHz at 6V, typical propagation delays ranging from 4 ns to 220 ns depending on the stage and voltage, and a maximum quiescent supply current of 8 μA.

Counter Dividers Feature Summary

• Features a 14-stage binary counting architecture with twelve accessible parallel output taps for various division ratios.
• Includes an overriding asynchronous master reset function that clears all counter stages to a low state independent of the clock signal.
• Provides balanced propagation delays between stages and symmetrical output impedance capabilities.
• Incorporates protection circuits against static discharge and transient excess voltage on all inputs.

Counter Dividers Applications

• Frequency dividing circuits
• Time delay circuits
• Control counters

Counter Dividers Procurement Notes

Verify the specific package type required, as the B1R suffix indicates tape and reel packaging for the DIP-16 variant. Confirm the operating temperature range requirements align with the -55°C to +125°C specification. Ensure interface compatibility with the target logic family regarding input voltage levels and noise immunity standards before finalizing procurement.

Counter Dividers Selection Notes

Select this component when a high-speed, multi-stage binary counter is needed with multiple parallel output options. The wide operating voltage range supports systems running at 2V or 6V. Consider the propagation delay specifications relative to the system clock speed. The device is suitable for applications requiring robust noise immunity and low power dissipation in industrial environments.

Counter Dividers Part Context

This part belongs to the STMicroelectronics 74HC series of high-speed CMOS logic devices. It is functionally compatible with the standard 74 Series 4020 binary counter. The device utilizes silicon gate C2MOS technology to achieve high speed while maintaining low power consumption. It is designed for general-purpose digital counting and timing applications across a wide temperature range.

Counter Dividers Replacement Considerations

Compatible replacements include other 14-stage binary counters from the 74HC or 74HCT families that maintain pin and function compatibility. Verify that substitute parts meet the same voltage and temperature specifications. Check if alternative packages are available if the tape and reel format is not strictly required.