TC74VHCT573AFTEL

Overview

The TC74VHCT573AFTEL is an 8-bit transparent latch manufactured by Toshiba Semiconductor and Storage. It belongs to the VHCT CMOS logic series, designed for high-speed digital applications. The device features a TSSOP-20 surface-mount package and operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical characteristics include a propagation delay of 8.5 ns at 5 V, a static current of 40 uA, and output drive capabilities of 8 mA for both low and high states. It supports industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Transparent latch architecture with eight independent data paths
• CMOS technology optimized for high-speed signal processing
• Surface-mount TSSOP-20 packaging for compact circuit integration

Applications

• Data bus buffering in digital systems
• Memory address latching circuits
• Parallel-to-serial conversion interfaces

Procurement Notes

Verify the specific suffix 'TEL' against the official Toshiba datasheet to confirm tape-and-reel packaging specifications. Ensure the component matches the exact VHCT series electrical parameters. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before procurement.

Selection Notes

Select this component when a high-speed 8-bit latch is required within a 5 V logic environment. The VHCT series ensures compatibility with standard TTL inputs while offering CMOS noise immunity. Consider the TSSOP-20 footprint for PCB layout constraints and verify that the 8 mA output drive meets the load requirements of the connected circuitry.

Part Context

This part is a member of the Toshiba 74VHCT573 family of octal transparent latches. The VHCT series bridges the performance gap between HC and HCT logic families, providing faster switching speeds. The TC prefix typically denotes Toshiba's commercial or industrial grade designation within their broader semiconductor portfolio.

Replacement Considerations

Check for direct equivalents such as the 74VHCT573 from other manufacturers. Verify pinout compatibility and electrical parameter alignment, particularly propagation delay and output current ratings, before substituting.