TC74VHC574FTELM

Overview

The TC74VHC574FTELM is an octal D-type flip-flop manufactured by Toshiba Semiconductor and Storage. It features non-inverting outputs with three-state control, enabling efficient bus line driving in digital systems. The device operates within a supply voltage range of 2.0 V to 5.5 V, ensuring compatibility with various logic families. It is housed in a 20-TSSOP package with a width of 4.40 mm, suitable for surface-mount applications. The component supports a maximum clock frequency of 250 MHz and exhibits a typical propagation delay of 4.2 ns at 3.3 V with a 30 pF load. Operating temperatures range from -40°C to +85°C.

Feature Summary

• Octal D-type flip-flop architecture with non-inverting outputs
• Three-state output capability for effective bus line management
• High-speed operation supporting up to 250 MHz clock frequencies
• Wide operating voltage range from 2.0 V to 5.5 V

Applications

• Data storage and buffering in high-speed digital circuits
• Bus driver applications requiring tri-state control
• Parallel-to-serial or serial-to-parallel data conversion interfaces
• General-purpose register implementations in embedded systems

Procurement Notes

Verify the specific ordering suffix FTELM against official Toshiba documentation to confirm the tape and reel packaging configuration. Ensure that the procurement channel provides valid traceability for the component's RoHS compliance status. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit products. Confirm that the received units match the specified 20-TSSOP package dimensions and pinout requirements for your PCB layout.

Selection Notes

Select this component when designing systems requiring octal storage with tri-state outputs and high-speed performance under varying voltage conditions. The 250 MHz clock rate and low propagation delay make it suitable for demanding digital applications. Consider the 20-TSSOP package size for space-constrained designs. Evaluate power consumption requirements, as static current specifications should be checked against system constraints. Ensure thermal management aligns with the -40°C to +85°C operating temperature range.

Part Context

This component belongs to the TC74VHC series of high-speed CMOS logic devices. It serves as a fundamental building block for sequential logic circuits, providing reliable data latching capabilities. The VHC series is designed to offer performance comparable to LSTTL while maintaining low power dissipation typical of CMOS technology. This specific variant integrates eight independent D-type flip-flops into a single package, simplifying board design for complex digital systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify cross-compatibility with other octal D-type flip-flops featuring three-state outputs, such as those from the 74VHC or 74VCX series, by consulting official datasheets for electrical parameter alignment.