SN74HC4020PW

Counter Dividers Overview

The SN74HC4020PW is a 14-stage asynchronous binary ripple counter in a 16-pin TSSOP package. It operates on the negative-going edge of the clock pulse and features an overriding asynchronous master reset input that clears all stages to zero independently of the clock. The device supports a supply voltage range of 2 V to 6 V, with a recommended operating temperature of -40°C to +85°C. It provides 12 buffered parallel outputs (Q0, Q3 to Q13) and can drive up to 10 LSTTL loads.

Counter Dividers Feature Summary

• Asynchronous master reset capability for immediate clearing of all counter stages
• Negative-edge triggered counting mechanism for binary ripple operation
• Buffered parallel outputs available from 12 of the 14 stages

Counter Dividers Applications

• Digital frequency division circuits
• Binary sequence generation systems
• Time-base counters in digital instrumentation

Counter Dividers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum to confirm active production status and lead finish specifications. Confirm RoHS compliance and Moisture Sensitivity Level ratings prior to procurement. Ensure the selected variant matches the required thermal resistance and packaging quantity for the intended assembly process.

Counter Dividers Selection Notes

Select this component when a 14-bit asynchronous binary count is required within a standard HC logic family. Verify that the 2 V to 6 V supply range aligns with the system power architecture. Consider the TSSOP package dimensions and thermal characteristics for PCB layout constraints. Ensure unused inputs are tied to defined logic levels to prevent undefined operational states.

Counter Dividers Part Context

This part belongs to the Texas Instruments SNx4HC4020 series of 14-bit asynchronous binary counters. The 'HC' designation indicates High-speed CMOS technology, offering reduced power consumption compared to older logic families. The PW suffix specifically identifies the 16-lead Thin Shrink Small Outline Package (TSSOP) form factor used for surface-mount applications.

Counter Dividers Replacement Considerations

SN74HC4020PWR is an active tape-and-reel alternative within the same package type.