SN74LVC573ARGYR

Latches Overview

The SN74LVC573ARGYR is an octal transparent D-type latch with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage of 1.65 V to 3.6 V and accepts input voltages up to 5.5 V. The device features a maximum propagation delay of 6.9 ns at 3.3 V and typical output ground bounce of 2 V. It provides high drive current capability, supporting loads up to 24 mA. The component includes Ioff circuitry for partial power-down protection and meets ESD standards exceeding 2000-V HBM. It is housed in a 20-pin VQFN package.

Latches Feature Summary

• Features 3-state outputs designed for driving highly capacitive or low-impedance loads.
• Includes Ioff circuitry to prevent damaging backflow currents during partial power-down.
• Inputs are tolerant to 5.5 V, supporting mixed-mode signal operation.

Latches Applications

• Servers
• PC and notebook computers
• Network switches
• Health and fitness wearables

Latches Procurement Notes

Verify the specific ordering suffix 'RGYR' corresponds to the VQFN package and tape-and-reel quantity. Confirm the operating temperature range matches the design requirements, as the datasheet specifies -40°C to 125°C for this variant. Ensure the part marking aligns with the active production status listed in the packaging information addendum.

Latches Selection Notes

Select this component when an octal latch with 3-state outputs is required for bus interface applications. It is suitable for designs needing voltage translation between 5-V inputs and lower VCC supplies. Consider the VQFN package dimensions and thermal characteristics if space constraints or heat dissipation are critical factors in the layout.

Latches Part Context

This device belongs to the SNx4LVC573A family of octal transparent D-type latches. The family includes variants with different packages such as SOIC, SSOP, and TSSOP. The SN74LVC573A series is distinct from the SN54LVC573A by its wider supply voltage range starting at 1.65 V compared to 2 V.

Latches Replacement Considerations

SN74LVC573ADWR

Latches FAQ

How does the Ioff feature function?

The Ioff circuitry disables the outputs when the device is powered down, preventing damaging current backflow through the device when VCC is 0 V.

What is the input voltage tolerance?

The inputs accept voltages up to 5.5 V, allowing the device to support mixed-mode signal operation on all ports.