TC74LCX574FT(EL)

Overview

The TC74LCX574FT(EL) is an octal D-type flip-flop with 3-state outputs manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 1.65V to 3.6V. The device features a maximum propagation delay of 8.0ns at 3.3V with a 30pF load, supporting clock frequencies up to 250MHz. It provides output drive currents of 24mA for both high and low states while maintaining a static current of only 20µA. Packaged in a 20-VSSOP format, it is designed for surface-mount applications across a temperature range of -40°C to 85°C.

Feature Summary

• Octal D-type flip-flop architecture with non-inverting 3-state outputs
• Low-voltage operation compatible with 1.65V to 3.6V power supplies
• High-speed performance with 250MHz clock frequency capability
• Enhanced static discharge protection on all input pins

Applications

• Parallel-to-serial data conversion circuits
• I/O buffering and port expansion in embedded systems
• Clocked memory interface registers
• Level shifting between different logic voltage domains

Procurement Notes

Verify the specific suffix (FT/EL) against the manufacturer's latest datasheet to confirm package dimensions and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check for obsolescence notices or design-in restrictions as this component may be part of an older product line.

Selection Notes

Select this component when designing low-power digital systems requiring octal storage with tri-state control. Ensure the operating voltage aligns with the 1.65V minimum requirement if using lower voltage rails. Consider the 20-VSSOP package size constraints and verify that the 24mA output drive current meets the load requirements of your downstream circuitry without exceeding thermal limits.

Part Context

This part belongs to Toshiba’s LCX series of CMOS logic integrated circuits. The LCX family is characterized by its ultra-low power consumption and wide operating voltage range, making it suitable for battery-powered portable devices. It serves as a successor or alternative to standard HC logic families in modern low-voltage designs, offering improved noise immunity and speed relative to power dissipation.

Replacement Considerations

Public confirmed substitute: Nexperia USA Inc. 74ALVC574PW,118.