TC74ACT373P

Overview

The TC74ACT373P is an octal transparent latch manufactured by Toshiba Semiconductor and Storage. It belongs to the ACT logic series, featuring eight D-type latches with true outputs and three-state capabilities. The device operates within a supply voltage range of 4.5V to 5.5V. It utilizes a 20-pin DIP package for through-hole mounting. Key electrical characteristics include a propagation delay of 5.5ns and an output drive current of 24mA. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides eight independent transparent latches with true output polarity
• Features three-state outputs for effective bus driving applications
• Delivers high-speed performance with low propagation delay
• Offers strong output drive capability suitable for heavy loads

Applications

• High-speed data bus buffering systems
• Register files in digital processing circuits
• Memory address and data storage modules
• Parallel-to-serial conversion interfaces

Procurement Notes

Verify the specific suffix designation against official Toshiba documentation to confirm pinout compatibility and electrical tolerances. Ensure the procurement channel provides genuine components with traceable manufacturing dates. Confirm that the DIP-20 package matches the target PCB footprint requirements before finalizing orders.

Selection Notes

Select this component when high-speed data latching is required at standard 5V logic levels. The ACT series offers superior speed compared to older LS or HC families while maintaining compatible pinouts. Consider the 24mA drive strength for direct interfacing with high-capacitance buses without additional buffer stages.

Part Context

This part is part of Toshiba's ACT (Advanced CMOS Technology) family, designed for high-performance digital applications. It serves as a direct replacement for similar octal latches in legacy designs requiring faster switching speeds. The DIP-20 form factor ensures compatibility with standard breadboards and through-hole assembly processes.

Replacement Considerations

Compatible substitutes include the TC74HC373P for lower speed requirements and the TC74FCT373TP for FCT interface compatibility. Verify voltage level matching when substituting with HCT variants. Check package dimensions carefully when replacing with surface-mount equivalents.