74LVC573AD,118

Latches Overview

The Nexperia 74LVC573AD,118 is an octal D-type transparent latch featuring 3-state outputs and 5 V tolerant inputs/outputs. It operates within a supply voltage range of 1.2 V to 3.6 V. The device includes latch enable (LE) and output enable (OE) inputs for data storage and bus isolation. It supports partial power-down applications via IOFF circuitry, which disables outputs to prevent backflow current when powered down. The component utilizes Schmitt-trigger action at all inputs to tolerate slower input rise and fall times.

Latches Feature Summary

• Features 5 V tolerant inputs and outputs allowing direct interface with mixed 3.3 V and 5 V environments.
• Includes IOFF circuitry that provides partial power-down mode operation by disabling outputs to prevent damaging backflow current.
• Utilizes Schmitt-trigger action at all inputs to ensure tolerance of slower input rise and fall times.

Latches Applications

• Translator use in mixed 3.3 V and 5 V environments
• Input or output port for microprocessors and microcomputers
• Bus-oriented applications requiring 3-state non-inverting outputs

Latches Procurement Notes

Verify the specific package type SOT163-1 (SO20) matches the design requirements. Confirm the operating temperature range of -40 °C to +125 °C aligns with the application environment. Ensure compatibility with the specified supply voltage range of 1.2 V to 3.6 V. Check for any recent Product Change Notifications regarding marking or assembly updates.

Latches Selection Notes

Select this component for designs requiring octal latching with 3-state outputs in low-voltage CMOS applications. The 5 V tolerance feature makes it suitable for interfacing between different logic voltage domains without additional level shifters. Consider the SO20 package dimensions and thermal dissipation characteristics for PCB layout planning.

Latches Part Context

This part belongs to the 74LVC573A family of octal D-type transparent latches. It is manufactured by Nexperia USA Inc. and is available in the SO20 plastic small outline package (SOT163-1). The device complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 depending on the supply voltage.

Latches Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.

Latches FAQ

How does the IOFF circuitry function?

The IOFF circuitry disables the output, preventing potentially damaging backflow current through the device when it is powered down, supporting partial power-down applications.

What is the purpose of the Schmitt-trigger action?

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.