SN74AHCT573DGVR

Overview

The SN74AHCT573DGVR is an octal transparent D-type latch with three-state outputs manufactured by Texas Instruments. It belongs to the SN74AHCT logic series and operates within a supply voltage range of 4.5 V to 5.5 V. The device features eight circuits in a 20-TVSOP package, supporting surface mount installation. Key electrical parameters include a propagation delay of 8 ns, static current of 4 uA, low-level output current of 32 mA, and high-level output current of -8 mA. It functions at non-inverting polarity and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Octal transparent D-type latch architecture providing eight independent data storage channels
• Three-state outputs enabling direct bus line driving and system interfacing
• TTL-compatible input structures ensuring compatibility with standard logic families
• Wide operating temperature range suitable for industrial and commercial environments

Applications

• Registering and buffering digital data signals in microprocessor systems
• Driving bus lines in communication interfaces requiring tri-state control
• Data storage applications in industrial control equipment
• Parallel-to-serial conversion circuits in embedded systems

Procurement Notes

Verify the specific ordering suffix against official Texas Instruments documentation to confirm package type and environmental compliance. Ensure the procurement channel provides valid manufacturer traceability. Confirm that the component meets RoHS requirements if applicable to your assembly process. Cross-reference the part number with the latest datasheet revision to ensure functional equivalence with existing designs.

Selection Notes

Select this component when TTL-compatible inputs are required alongside three-state output capabilities. The AHCT series ensures compatibility with 5V logic systems while offering improved noise immunity compared to older standards. Consider the TVSOP package dimensions for PCB layout constraints. Verify that the 8 ns propagation delay meets the timing requirements of your specific application circuit.

Part Context

This component is part of the SN74AHCT573 family of octal latches. It shares the same logical function as the SN74AHC573 but utilizes AHCT input structures for TTL compatibility. The DGVR suffix indicates a 20-pin Thin Visual Small Outline Package with reel packaging. It serves as a standard solution for parallel data retention in 5V digital systems.

Replacement Considerations

SN74AHCT573DGVRE4 and SN74AHCT573DGVRG4 are confirmed equivalent variants within the same product line.