TC74LCX273FT-ELK

Overview

The TC74LCX273FT-ELK is an 8-bit D-type flip-flop manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 1.65V to 3.6V and features tri-state outputs. The component utilizes the LCX logic series, providing high-speed performance with a maximum propagation delay of 8.0ns at 3.3V. It supports output drive currents of 24mA and is housed in a 20-pin TSSOP package.

Feature Summary

• Provides 8-bit data storage with positive-edge triggering for synchronous digital applications.
• Features tri-state outputs that allow direct connection to bus lines without external buffers.
• Operates across a wide voltage range from 1.65V to 3.6V for low-power system integration.

Applications

• Parallel-to-serial data conversion circuits
• Buffering and latching on microprocessor buses
• Register files in embedded systems

Procurement Notes

Verify the specific suffix ELK against the manufacturer's current datasheet to confirm pinout compatibility and packaging details. Ensure the source document explicitly lists this part number as active or available for new designs. Cross-reference the RoHS status and moisture sensitivity level requirements with your assembly specifications before ordering.

Selection Notes

Select this component when an 8-bit latch with tri-state capability is required for low-voltage logic interfaces. The LCX series offers speed comparable to LVC while maintaining lower power consumption. Consider the 20-TSSOP package dimensions for PCB layout constraints and verify that the 24mA drive strength meets the load requirements of the destination circuitry.

Part Context

This device belongs to the Toshiba 74LCX family of advanced CMOS logic integrated circuits. The LCX series is designed to replace older TTL-compatible logic families while offering improved switching speeds and reduced power dissipation. It serves as a standard solution for general-purpose digital storage and buffering in portable and battery-operated electronic devices.

Replacement Considerations

Direct substitutes include the TC74LCX273FTELM and TC74LCX273FK(EL,K). Verify pin compatibility and electrical characteristics with the original datasheet before substitution.

FAQ

What is the trigger type for the TC74LCX273FT-ELK?

The device uses positive-edge triggering for data capture.

Does this component have an asynchronous reset function?

Yes, the TC74LCX273 includes a master reset input for asynchronous clearing of the outputs.