SN74LVC573APWRG4

Latches Overview

The SN74LVC573APWRG4 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 a maximum propagation delay of 6.9 ns at 3.3 V and includes Ioff circuitry for partial power-down mode support. It is housed in a 20-pin TSSOP package.

Latches Feature Summary

• Features 3-state outputs designed for driving highly capacitive or low-impedance loads without interface components.
• Includes Ioff circuitry to disable outputs and prevent damaging backflow current during partial power-down applications.
• Inputs are tolerant to 5.5 V, allowing direct interfacing between 5-V and 3.3-V systems.

Latches Applications

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

Latches Procurement Notes

Verify the specific ordering suffix 'G4' corresponds to the required RoHS compliance and lead-free status as defined in the manufacturer's documentation. Confirm the package type matches the design requirements, as this part number specifies the PW (TSSOP) variant. Ensure the operating temperature range aligns with the system environment specifications before finalizing procurement.

Latches Selection Notes

Select this component when implementing buffer registers, I/O ports, bidirectional bus drivers, or working registers requiring data retention. It is suitable for high-speed applications up to 100 MHz due to its fast propagation characteristics. Consider the 5.5 V input tolerance if interfacing with legacy 5-V logic levels while operating the core at lower voltages.

Latches Part Context

This device belongs to the SNx4LVC573A family of octal transparent D-type latches. The LVC series is optimized for low-voltage CMOS operations, offering reduced power consumption compared to older logic families. The 'SN74' designation indicates commercial grade temperature ratings, distinguishing it from the military-grade SN54 variants.

Latches Replacement Considerations

Compatible substitutes include SN74LVC573ADBR, SN74LVC573ADW, and SN74LVC573ANSR. These alternatives share identical logical functionality but differ in physical packaging such as SSOP, SOIC, or SOP. Verify pin compatibility and thermal performance when substituting packages.