TC74AC573FW-ELP

Overview

The TC74AC573FW-ELP is an octal D-type transparent latch manufactured by Toshiba Semiconductor and Storage. It belongs to the AC logic series, utilizing CMOS technology for low power consumption and high noise immunity. The device features eight D-type latches with three-state outputs, allowing direct interface with microprocessors and bus-oriented systems. It operates within a supply voltage range of 2.0V to 5.5V and supports surface-mount installation in a 20-SOP package.

Feature Summary

• Octal configuration providing eight independent D-type latching channels
• Three-state output capability for efficient bus system interfacing
• Transparent latch operation enabling data storage upon clock edge
• CMOS construction ensuring low static power dissipation

Applications

• Bus-oriented memory mapping circuits
• Register banks for data storage applications
• Clock-controlled output drivers
• Parallel-to-serial conversion interfaces

Procurement Notes

Verify the specific suffix EL-P against the manufacturer's official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with the target PCB footprint and reflow soldering profile requirements. Cross-reference the part number with authorized distributors to confirm current production status and availability constraints.

Selection Notes

Select this component when an octal latch with three-state outputs is required for bus isolation or data registration. Consider the AC series performance characteristics regarding propagation delay and drive capability relative to the system clock speed. Verify that the operating voltage range aligns with the system's power supply rails and that the SOP-20 package fits the mechanical design constraints.

Part Context

This component is part of Toshiba's TC74AC series of CMOS logic integrated circuits. The series offers improved switching speeds compared to standard LS logic while maintaining low power consumption. The TC74AC573 variant specifically provides octal latching functionality, distinguishing it from single-bit or hex configurations within the same family.

Replacement Considerations

Check for equivalent parts such as the TC74ACT573FW if ACT series performance is acceptable. Verify pinout compatibility before substituting with other manufacturers' octal latches like the SN74AC573.