74LVC573AT20-13

Latches Overview

The 74LVC573AT20-13 is an octal transparent D-type latch with 3-state outputs manufactured by Diodes Incorporated. It operates within a supply voltage range of 1.65V to 3.6V and features inputs tolerant to 5.5V for mixed-voltage compatibility. The device provides high drive capability, sinking or sourcing 24mA at VCC = 3V. Propagation delay from data input (DN) to output (QN) is typically 3.8ns at 3.3V. It includes I_OFF circuitry to support partial power-down applications by disabling outputs to prevent damaging backflow current.

Latches Feature Summary

• Features Schmitt trigger action at all inputs to improve noise immunity.
• Includes IOFF circuitry to disable outputs during partial power-down states.
• Inputs accept up to 5.5V, facilitating operation in mixed voltage environments.
• Outputs provide increased drive capability without requiring interface components.

Latches Applications

• Bus driving
• Power down signal isolation
• General purpose logic

Latches Procurement Notes

Verify the package code T20 corresponds to the TSSOP-20 form factor. Confirm the -13 suffix indicates 13-inch tape and reel packaging. Ensure the component meets RoHS compliance and is halogen and antimony free as specified by the manufacturer's green device standards.

Latches Selection Notes

Select this component when eight transparent latches with 3-state outputs are required. It is suitable for designs needing mixed voltage interfacing due to 5.5V tolerant inputs. Verify that the TSSOP-20 package dimensions align with the PCB layout requirements.

Latches Part Context

This part belongs to the 74LVC573A series of octal transparent D-type latches. It is designed for low voltage CMOS applications. The device is fully specified for partial power-down operations using I_OFF circuitry. It supports general-purpose logic functions and bus driving tasks.

Latches Replacement Considerations

Datasheet does not list specific substitute part numbers. Cross-reference with other manufacturers' 74LVC573 equivalents ensuring identical pinout and electrical characteristics.

Latches FAQ

How does the device handle partial power-down?

The device features I_OFF circuitry that disables the outputs to prevent damaging current backflow when the device is powered down.

What is the input voltage tolerance?

The inputs are tolerant to 5.5V, allowing the device to be used in mixed voltage environments with 3.3V or 5V drivers.