SN74HC4040APWR

Overview

The SN74HC4040APWR is a 12-bit asynchronous binary counter from the Texas Instruments SN74HC4040 series. 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 utilizes a 16-pin TSSOP surface-mount package. It features a single counting element with upward binary counting capability and negative-edge triggering. The component is RoHS compliant and designed for general-purpose digital logic applications requiring high-speed asynchronous counting functions.

Feature Summary

• Provides 12-bit asynchronous binary counting functionality with a single internal element.
• Operates reliably across a wide supply voltage range from 2 V to 6 V.
• Engineered for extended industrial temperature performance spanning -40°C to +85°C.
• Utilizes negative-edge triggered flip-flops for precise state transitions.

Applications

• Digital frequency division circuits
• Time-base generation in timing systems
• Address decoding in memory architectures
• Event counting in industrial control interfaces

Procurement Notes

Verify the specific suffix 'A' against the manufacturer's current datasheet to confirm pinout compatibility and electrical characteristics, as suffixes may indicate specific manufacturing revisions or regional variants. Ensure the TSSOP-16 footprint matches the target PCB design constraints. Confirm RoHS compliance status directly with the supplier documentation prior to final procurement integration.

Selection Notes

Select this component when a 12-bit asynchronous counter is required within the HC logic family specifications. It is suitable for designs needing operation between 2 V and 6 V. Consider the TSSOP-16 package size for space-constrained surface-mount layouts. Verify that the asynchronous nature of the count aligns with the system timing requirements compared to synchronous alternatives.

Part Context

This part belongs to the SN74HC4040 family of 12-bit asynchronous binary counters manufactured by Texas Instruments. The HC series denotes high-speed CMOS technology, offering compatibility with standard TTL logic levels while maintaining low power consumption. The APWR suffix indicates the specific TSSOP-16 packaging variant produced by Texas Instruments.

Replacement Considerations

SN74HC4040PWR is a verified equivalent alternative within the same series and package type. Other compatible options include SN74HC4040DR and SN74HC4040DT, which share identical logical functions but utilize SOIC-16 packaging instead of TSSOP. Verify pinout compatibility before substitution.