SN74HC4040DR

Overview

The SN74HC4040DR is a 12-bit asynchronous binary counter from the Texas Instruments HC logic family, housed in a 16-pin SOIC package. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range of -40°C to +85°C. The device features a maximum clock frequency of 22 MHz at 4.5 V and typical propagation delays of 12 ns. It includes an asynchronous clear input that resets all outputs to a low state upon receiving a high signal.

Feature Summary

• Provides 12-stage asynchronous binary counting with external access to all stage outputs
• Features asynchronous clearing capability via a dedicated control input
• Supports operation across a wide voltage range suitable for various digital systems

Applications

• Time-delay circuits
• Counter controls
• Frequency-dividing circuits

Procurement Notes

Verify the specific ordering suffix 'DR' corresponds to the SOIC-16 tape and reel packaging configuration. Confirm RoHS compliance status and lead finish details against the latest manufacturer documentation prior to finalizing procurement specifications.

Selection Notes

Select this component when a 12-bit up-counter is required within standard CMOS logic constraints. Ensure the design accommodates the asynchronous nature of the count progression and verify that the 2 V to 6 V supply range aligns with the target system power architecture.

Part Context

This part belongs to the SNx4HC4040 series of 12-bit asynchronous binary counters manufactured by Texas Instruments. The 'SN74' designation indicates commercial grade performance, while the 'HC' suffix identifies it as High-speed CMOS technology compatible with standard TTL loads.

Replacement Considerations

Direct replacement options include SN74HC4040DBR (SSOP) and SN74HC4040PWR (TSSOP). Verify pinout compatibility and package dimensions before substituting.