74ALVC573BQ,115

Latches Overview

The 74ALVC573BQ,115 is an octal D-type transparent latch with 3-state outputs manufactured by Nexperia. It operates within a supply voltage range of 1.65 V to 3.6 V and supports ambient temperatures from -40 °C to +125 °C. The device features Schmitt trigger inputs for slow signal tolerance and IOFF circuitry for partial power-down protection. Propagation delays range from 1.0 ns to 6.9 ns depending on voltage and temperature. It utilizes a DHVQFN20 package (SOT764-1) with dimensions of 2.5 × 4.5 mm.

Latches Feature Summary

• Transparent latch operation controlled by active HIGH Latch Enable (LE) input
• IOFF circuitry prevents backflow current during partial power-down states
• Schmitt trigger action on all inputs ensures tolerance to slow rise and fall times
• High ESD protection exceeding 2000 V HBM and 1000 V CDM

Latches Applications

• Partial power-down applications requiring IOFF functionality
• Mixed voltage environments utilizing overvoltage tolerant inputs
• Data storage and buffering in high-speed digital systems

Latches Procurement Notes

Verify the ordering suffix '115' corresponds to the DHVQFN20 package variant SOT764-1. Confirm that the specific batch meets the -40 °C to +125 °C operating temperature range specified in the product data sheet. Ensure design compatibility with the 1.65 V to 3.6 V supply voltage limits before procurement.

Latches Selection Notes

Select this component when a transparent latch configuration is required rather than edge-triggered storage. The DHVQFN20 package is suitable for space-constrained designs needing thermal enhancement. Verify that the application requires Schmitt trigger inputs to handle slow signal transitions effectively.

Latches Part Context

This part belongs to the 74ALVC family of Octal D-type transparent latches. It shares functional similarities with other variants like the 74ALVC573D and 74ALVC573PW but differs in physical packaging. The BQ suffix specifically denotes the leadless DHVQFN20 form factor designed for surface mount assembly.

Latches Replacement Considerations

Direct replacements include 74ALVC573D and 74ALVC573PW if package adaptation is possible. Cross-package substitution requires verifying pinout compatibility and ensuring the alternative package supports the required thermal dissipation characteristics.