SN74HC4020DBR

Overview

The SN74HC4020DBR is a 14-bit asynchronous binary counter manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features an SOIC-16 package. The device advances on the negative-going edge of the clock pulse and resets asynchronously when the clear input goes high. Recommended operating conditions specify a temperature range of -40°C to 85°C, with a maximum clock frequency of 33 MHz at 6 V.

Feature Summary

• Provides 14-stage binary ripple-carry counting functionality
• Features asynchronous reset capability independent of the clock input
• Supports operation across a wide voltage range from 2 V to 6 V

Applications

• Digital timing circuits requiring binary sequence generation
• Frequency division applications in digital systems
• Event counting mechanisms for external pulses

Procurement Notes

Verify the specific ordering suffix DBR corresponds to the SSOP package variant rather than standard SOIC. Confirm RoHS compliance status and lead finish details via the manufacturer's current orderable addendum. Ensure the component status is active before finalizing procurement plans.

Selection Notes

Select this component for designs requiring 14-bit binary counting with low power consumption. Verify that the required operating temperature range aligns with the commercial grade specifications. Consider the package dimensions and thermal resistance characteristics during PCB layout planning.

Part Context

This part belongs to the SNx4HC4020 family of 14-bit asynchronous binary counters. The family includes variants with different packaging options such as PDIP, TSSOP, and LCCC. The HC logic series provides compatibility with standard CMOS interfaces while maintaining low power dissipation characteristics suitable for battery-operated devices.

Replacement Considerations

Check the manufacturer's orderable addendum for alternative package options like SN74HC4020DR or SN74HC4020PWR. Verify pinout compatibility and electrical specifications match the original design requirements before substitution.