SN74LVC573AQDWRQ1

Latches Overview

The SN74LVC573AQDWRQ1 is an automotive-grade octal transparent D-type latch manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 3.6 V and features eight non-inverting outputs with three-state capability. The device provides propagation delays of 7.7 ns at 2.7 V and 6.9 ns at 3.3 V, alongside a low static current consumption of 10 µA. Output drive strengths include 32 mA for low-level and -24 mA for high-level conditions. Designed for robust performance, it supports operating temperatures from -40°C to +125°C and meets AEC-Q100 qualification standards for automotive applications.

Latches Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for extended temperature operation
• Octal transparent latch architecture with independent data latching control via the LE input
• Three-state output design enabling direct bus driving and system-wide signal isolation

Latches Applications

• Automotive electronic control unit (ECU) data buffering
• In-vehicle communication interface signal storage
• Automotive display driver address latching

Latches Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification status. Confirm the 'DWR' package designation matches the required SOIC-20 footprint dimensions. Ensure the logic family LVC aligns with the target system voltage requirements between 2V and 3.6V. Cross-reference the manufacturer datasheet revision to confirm pinout compatibility before integration.

Latches Selection Notes

Select this component when designing systems requiring high-speed data retention with low power consumption in automotive environments. The LVC series offers superior speed compared to standard HC logic while maintaining lower voltage operation. Verify that the 3.6V maximum supply constraint fits the vehicle's power rail specifications. Consider the 20-SOIC package for surface-mount assembly constraints.

Latches Part Context

This part belongs to the SN74LVC573A-Q1 family of octal transparent D-type latches. It shares functional similarities with other automotive logic devices but is distinguished by its specific LVC technology node and voltage range. The Q1 suffix denotes automotive qualification, differentiating it from commercial grade counterparts like the standard SN74LVC573.

Latches Replacement Considerations

SN74HC573AQDWRQ1: Higher voltage support up to 6V but slower propagation delay.