74AC377SC

Overview

The MC74AC377SC is an octal D-type flip-flop with clock enable, belonging to the onsemi 74AC logic series. It features a single-ended input and non-inverting output configuration within a 20-pin SOIC package. The device operates on a supply voltage range of 2 V to 6 V, supporting a maximum clock frequency of 140 MHz. Key electrical parameters include a propagation delay of 13 ns, high-level output current of -24 mA, and low-level output current of 24 mA. It functions reliably across an ambient temperature range of -40°C to +85°C.

Feature Summary

• Octal D-type flip-flop architecture with integrated clock enable functionality for precise data synchronization control.
• CMOS technology ensures low static power consumption while maintaining high-speed signal processing capabilities.
• Non-inverting output design provides direct data transfer from inputs to outputs upon valid clock triggering.

Applications

• Parallel-to-serial data conversion circuits requiring synchronized data latching.
• High-speed buffering applications in digital communication systems.
• Register file implementations in microprocessor-based designs.

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and tape/reel specifications. Ensure compatibility with existing board layouts regarding pin pitch and thermal requirements. Confirm RoHS compliance status if required by project regulations. Cross-reference part numbers with manufacturer databases to avoid obsolete variants.

Selection Notes

Select this component when an octal register with clock enable is required within the 74AC speed grade. Consider the 2V to 6V operating range for flexibility in varying supply voltages. Evaluate the 20-SOIC package dimensions against available PCB space constraints. Compare propagation delays with system timing budgets to ensure signal integrity at target frequencies.

Part Context

This component is part of the broader 74AC family of high-speed CMOS logic devices. It shares functional similarities with other octal registers but offers specific performance characteristics defined by the AC series. The device complements other logic families by providing balanced speed and power efficiency for general-purpose digital applications.

Replacement Considerations

Direct substitutes include MC74AC377DWR2G and MC74AC377DTG, which offer identical logical functionality. Verify package compatibility, as these alternatives may utilize TSSOP or different SOIC variations. Ensure that any replacement maintains the same voltage and current specifications for seamless integration.