74AC377MTC

Overview

The Fairchild Semiconductor 74AC377MTC is an octal D-type flip-flop belonging to the AC series. It features eight positive-edge-triggered D-type flip-flops with clock enable functionality and true outputs. The device utilizes CMOS technology for high-speed operation and low power consumption. It is housed in a 20-lead Thin Shrink Small Outline Package (TSSOP) with a width of 4.40 mm, designed for surface-mount applications.

Feature Summary

• Integrates eight positive-edge-triggered D-type flip-flops within a single package
• Includes dedicated clock enable input to control data capture timing
• Provides true outputs for direct logic interfacing without inversion
• Utilizes advanced CMOS technology for high noise immunity and low power

Applications

• Bus-oriented storage systems requiring parallel data retention
• High-speed digital signal processing circuits
• Data acquisition systems utilizing clock-gated sampling
• Industrial control logic interfaces

Procurement Notes

Verify the specific manufacturer origin, as Fairchild Semiconductor operations were acquired by ON Semiconductor. Confirm that the component matches the original Fairchild specifications rather than subsequent ON Semiconductor revisions. Ensure the TSSOP-20 package dimensions align with design constraints before finalizing procurement orders.

Selection Notes

Select this component when clock-enable functionality is required for octal data storage. It serves as a functional alternative to the 74AC374, which lacks the clock enable feature. Consider the TSSOP-20 package availability and ensure voltage levels are compatible with the target system's logic family requirements.

Part Context

This component belongs to the 74AC logic family, characterized by high speed and low power consumption compared to standard TTL or HC families. The 74AC377 variant specifically adds clock enable capability to the standard octal flip-flop architecture, distinguishing it from the 74AC374 latch variants.

Replacement Considerations

The 74ACT377MTC is a verified substitute offering TTL-compatible inputs while maintaining the same pinout and functionality.