SN74AHCT573QDWRQ1

Overview

The SN74AHCT573QDWRQ1 is an octal transparent D-type latch designed for automotive applications. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature from -40°C to 125°C. The device features TTL-compatible inputs, buffered output-enable (OE) control for high-impedance states, and outputs capable of sourcing or sinking up to 8 mA. Propagation delays are specified at a maximum of 9 ns under typical load conditions.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• TTL-voltage compatible input structure
• Buffered output-enable for bus line driving without pullups
• High ESD protection exceeding 1500 V per MIL-STD-883

Applications

• Automotive data storage systems
• Bus interface circuits in vehicle networks
• Octal register configurations in automotive modules

Procurement Notes

Verify the obsolete status directly with Texas Instruments before design finalization. Confirm package availability and lead times through authorized distributors. Ensure compliance with RoHS directives and check for any specific lifecycle notices regarding lifetime buy options or replacement recommendations.

Selection Notes

Select this component when a 5 V logic family with TTL compatibility is required for automotive environments. The AHCT series provides faster switching than standard HC devices while maintaining CMOS power efficiency. Verify that the 8 mA drive current meets the load requirements of the connected circuitry.

Part Context

This part belongs to the SN74AHCT573-Q1 logic family, specifically engineered for automotive use. It serves as an octal latch variant within the broader AHCT product line, offering enhanced speed and drive capability compared to legacy counterparts while adhering to strict automotive reliability standards.

Replacement Considerations

SN74AHCT573QDRQ1