74FCT374PC

Overview

The National Semiconductor 74FCT374PC is an octal D flip-flop featuring tri-state outputs, designed for high-speed digital logic applications. It operates within a supply voltage range of 4.5V to 5.5V and supports a maximum propagation delay of 10ns at 5V with a 50pF load. The device provides robust output drive capabilities with current ratings of 32mA for high state and 64mA for low state. Packaged in a 20-pin DIP format, it ensures reliable performance across standard operating conditions.

Feature Summary

• Octal D flip-flop architecture with buffered common clock input
• Tri-state outputs allowing bus-oriented memory register operations
• Fast CMOS technology ensuring low power consumption and high speed
• TTL-compatible input and output levels for system integration

Applications

• Bus-oriented memory register implementations
• 8-bit buffer and register designs
• Clocked data storage systems
• High-speed serial-to-parallel conversion circuits

Procurement Notes

Verify the specific manufacturer origin as National Semiconductor has been acquired by Texas Instruments. Confirm that the 'PC' suffix corresponds to the correct plastic DIP package variant. Ensure compliance with RoHS directives if required for modern assembly processes. Cross-reference datasheets from authorized distributors to confirm pinout compatibility and electrical specifications match the original National Semiconductor standards.

Selection Notes

Select this component when an octal D flip-flop with tri-state outputs is required for bus-driven applications. Consider the 10ns propagation delay and 5V operation limits. Evaluate package availability, as older DIP formats may have limited stock compared to surface-mount alternatives like SSOP or TQFP. Verify temperature range requirements against the standard commercial grade specifications provided in the official documentation.

Part Context

This component belongs to the 74FCT series, which utilizes Fast CMOS technology to bridge the performance gap between TTL and CMOS logic families. The 74FCT374 specifically functions as an octal D-type flip-flop, widely used in digital systems for temporary data storage and synchronization. Its tri-state capability makes it suitable for multiplexed bus architectures where multiple devices share data lines.

Replacement Considerations

• CY74FCT374PC (Texas Instruments)
• PI74FCT374PC (Pericom)