SN74LVTH573DB

Overview

The SN74LVTH573DB is an octal D-type transparent latch manufactured by Texas Instruments, belonging to the LVTH logic series. It features a 20-pin SOIC package and operates with non-inverting polarity. The device supports a supply voltage range of 2.7 V to 3.6 V. Key electrical parameters include a propagation delay of 2.9 ns at 3.3 V, static current of 5 mA, and output drive capabilities of 32 mA for both low and high states. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Provides eight-bit data storage with transparent latch functionality controlled by a single enable input.
• Delivers high-speed performance with low propagation delay suitable for bus-oriented architectures.
• Supports strong three-state outputs capable of driving high capacitive loads directly.

Applications

• Registering data on microprocessor systems
• Buffering and bus drivers in communication interfaces
• Portable equipment requiring low power consumption

Procurement Notes

Verify the specific package suffix against official documentation, as 'DB' typically denotes SOIC-20 but regional variations exist. Confirm RoHS compliance status through the manufacturer's latest environmental files. Ensure the ordering part number matches the exact pinout and electrical specifications required for your circuit design before finalizing procurement.

Selection Notes

Select this component when designing systems operating strictly within the 2.7 V to 3.6 V supply range. It is appropriate for applications requiring fast switching speeds and robust output drive strength. Compare against standard LVT variants if higher voltage tolerance or different packaging options are necessary for the specific PCB layout constraints.

Part Context

This component is part of the SN74LVTH573 family, which integrates advanced CMOS technology for low power dissipation. It serves as a direct replacement for older LVT counterparts while offering improved speed characteristics. The device is designed for use in battery-powered and portable applications where efficient power management is critical alongside high-performance data handling.

Replacement Considerations

SN74LVTH573DWR is a reel-packaged equivalent from Texas Instruments. SN74LVT573DBR is a discontinued LVT series alternative that may require voltage level verification.