CD74FCT377TM

Overview

The CD74FCT377TM is an octal D-type flip-flop manufactured by Harris Corporation, belonging to the FCT logic series. It features a positive-edge triggered mechanism with non-inverting outputs and single-ended input/output configurations. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a maximum propagation delay of 13 ns under 5V operation with a 50 pF load. It provides high drive capability with a low-level output current of 64 mA and a high-level output current of -32 mA. The component is housed in a 20-SOIC package and functions as a register for data storage applications.

Feature Summary

• Octal D-type flip-flop architecture with positive-edge triggering
• High drive strength supporting 64 mA low-level and -32 mA high-level output currents
• Bus hold inputs eliminate the need for external pull-up resistors

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations
• General-purpose digital storage registers

Procurement Notes

Verify the manufacturer designation carefully, as this component was originally produced by Harris Corporation, which has undergone corporate acquisitions and name changes. Confirm that the specific part number corresponds to the intended legacy specifications and pinout compatibility. Ensure the source documentation explicitly references Harris Corporation or its direct successor entities to validate authenticity and technical accuracy.

Selection Notes

Select this component when an octal D-type flip-flop with high drive capability is required for 5V logic systems. The FCT series offers fast switching speeds suitable for high-performance digital designs. Consider the 20-SOIC package constraints and verify that the 4.75 V to 5.25 V supply range aligns with the system power rails. Ensure the positive-edge trigger requirement matches the clocking scheme of the target application.

Part Context

The CD74FCT377TM is part of the FCT (Fast CMOS) logic family developed by Harris Corporation. This series is designed for high-speed digital applications requiring low power consumption and strong output drive capabilities. The FCT family bridges the performance gap between standard TTL and advanced CMOS technologies, offering faster propagation delays while maintaining CMOS noise immunity and power efficiency characteristics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.