SN74LVC573AGQNR

Latches Overview

The SN74LVC573AGQNR 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 features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation. The device provides high drive capabilities suitable for driving highly capacitive or low-impedance loads. Key electrical specifications include a maximum propagation delay of 6.9 ns at 3.3 V and typical output ground bounce (VOLP) of 2 V at VCC = 3.3 V. It includes Ioff circuitry for partial-power-down mode and exhibits latch-up performance exceeding 250 mA per JESD 17.

Latches Feature Summary

• Supports mixed-mode signal operation on all ports with 5-V input/output voltage tolerance while operating at 3.3-V VCC
• Includes Ioff feature to support live insertion, partial power down mode, and back drive protection
• Features 3-state outputs designed specifically for driving highly capacitive or relatively low impedance loads

Latches Applications

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

Latches Procurement Notes

Verify the specific package type associated with the GQNR suffix against the manufacturer's official orderable addendum. Confirm the active production status and environmental compliance details such as RoHS and lead finish directly from the datasheet documentation before procurement.

Latches Selection Notes

Select this component when designing systems requiring octal latching with 3-state bus interfacing in low-voltage environments. Ensure the design accommodates the 1.65 V to 3.6 V supply range and utilizes the 5.5 V tolerant inputs for level translation. Consider the high drive current capability for applications involving heavy capacitive loads.

Latches Part Context

This part belongs to the SNx4LVC573A family of octal transparent D-type latches. The family includes variants like the SN54LVC573A designed for military temperature ranges and commercial variants like the SN74LVC573A. These devices are standard CMOS logic components used for data retention and bus interface applications.

Latches Replacement Considerations

SN74LVC573ADWR

Latches FAQ

How does the Ioff feature function?

The Ioff circuitry disables the outputs to prevent damaging current backflow through the device when it is powered down, allowing voltages on the inputs and outputs even when VCC is 0 V.

What is the input voltage tolerance?

The inputs accept voltages up to 5.5 V, which allows the device to support mixed-mode signal operation and down voltage translation when operating at lower supply voltages like 3.3 V.