TC74LCX574FTELM

Overview

The TC74LCX574FTELM is an octal D-type flip-flop manufactured by Toshiba Semiconductor and Storage, belonging to the 74LCX series. It features a single element with eight bits per element, utilizing positive-edge triggering for data capture. The device operates within a supply voltage range of 1.65V to 3.6V and supports a maximum clock frequency of 150 MHz. It provides tri-state, non-inverting outputs with drive currents of 24mA for both high and low states. Key electrical parameters include a maximum propagation delay of 8.5ns at 3.3V with a 50pF load, a static current of 10 µA, and an input capacitance of 7 pF. The component is housed in a 20-TSSOP package.

Feature Summary

• Octal D-type flip-flop architecture with positive-edge triggering mechanism
• Tri-state non-inverting output configuration supporting bidirectional bus interfacing
• Low-voltage operation capability compatible with 3.3V system environments
• High-speed signal processing performance suitable for demanding digital applications

Applications

• Data storage and buffering in low-voltage digital systems
• Interface circuits between different logic families or voltage domains
• Memory address latching and control signal management
• General-purpose register implementation in embedded designs

Procurement Notes

This component is officially classified as obsolete and no longer manufactured by Toshiba Semiconductor and Storage. Procurement must rely on existing stock from authorized distributors or secondary market suppliers. Verify part authenticity carefully due to potential availability of surplus or refurbished units. Ensure that any substitute components meet the required electrical specifications and pin compatibility before integration into new designs.

Selection Notes

Engineers should consider this part only for maintenance or legacy system upgrades rather than new product development. Evaluate alternative active components from the same manufacturer or competitors if long-term supply stability is required. Check for direct replacements that offer identical pinouts and electrical characteristics to minimize redesign efforts. Confirm that the selected substitute supports the necessary voltage ranges and speed requirements.

Part Context

The TC74LCX574FTELM belongs to the 74LCX family of low-voltage CMOS logic devices. This series is designed for high-speed operation while maintaining low power consumption, making it suitable for portable and battery-powered applications. The specific model integrates eight D-type flip-flops with tri-state outputs, providing a compact solution for managing multiple data lines in space-constrained PCB layouts.

Replacement Considerations

• 74LCX574FT (Toshiba Semiconductor and Storage)

FAQ

What is the trigger type of the TC74LCX574FTELM?

The device uses positive-edge triggering to capture data on the rising edge of the clock signal.

Does the TC74LCX574FTELM have inverting or non-inverting outputs?

It features non-inverting outputs, meaning the output state follows the input state when enabled.

What is the maximum operating supply voltage for this component?

The maximum operating supply voltage is 3.6V, with a minimum of 1.65V.