74ALVC573D,118

Latches Overview

The Nexperia 74ALVC573D,118 is an octal D-type transparent latch with 3-state outputs housed in a SO20 (SOT163-1) plastic small outline package. 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 includes IOFF circuitry for partial power-down applications. Propagation delays range from 1.0 ns to 3.8 ns depending on voltage, with output drive capabilities up to ±24 mA.

Latches Feature Summary

• Schmitt trigger action on all inputs provides tolerance for slow rise and fall times.
• IOFF circuitry disables outputs to prevent damaging backflow current during partial power-down.
• Direct interface capability with TTL levels allows compatibility with standard logic families.
• Overvoltage tolerant inputs support operation up to 3.6 V regardless of the supply voltage.

Latches Applications

• Bus-oriented applications requiring 3-state non-inverting outputs
• Partial power-down mode operations utilizing IOFF circuitry
• Mixed 3.3 V and 5 V environments via direct TTL interface

Latches Procurement Notes

Verify the specific ordering suffix matches the required package type, as the 74ALVC573 series includes multiple options such as TSSOP20 and DHVQFN20. Confirm that the -40 °C to +125 °C temperature range aligns with your system requirements. Ensure input transition rates comply with JEDEC standards for the selected supply voltage to maintain signal integrity.

Latches Selection Notes

Select this component when an octal latch with 3-state outputs is required for bus systems. The ALVC series offers lower power dissipation compared to older technologies while maintaining high noise immunity. Verify that the SO20 package dimensions fit your PCB layout constraints and that the operating voltage range covers your system's nominal supply levels.

Latches Part Context

This part belongs to the 74ALVC573 family of octal D-type transparent latches. Other variants in the series include the 74ALVC573PW in a TSSOP20 package and the 74ALVC573BQ in a DHVQFN20 package. All variants share identical electrical specifications and functional behavior, differing only in physical packaging and pinout geometry.

Latches Replacement Considerations

Compatible substitutes include the 74ALVC573PW and 74ALVC573BQ from Nexperia, which offer identical electrical performance in different packages. Cross-brand replacements must match the 1.65 V to 3.6 V supply range, 3-state output configuration, and SO20 footprint if pin-to-pin replacement is required.