CD74HCT377M

Overview

The CD74HCT377M is an octal D-type flip-flop manufactured by Texas Instruments, belonging to the HCT logic series. It features eight positive-edge-triggered D-type flip-flops with output latches in a single package. The device operates within a supply voltage range of 4.5 V to 5.5 V and utilizes a 20-SOIC surface-mount package. Key electrical parameters include a maximum propagation delay of 38 ns at 4.5 V with a 50 pF load, a clock frequency of 50 MHz, and static current of 8 µA. Output drive capability is specified at 4 mA for both high and low states.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops
• Positive-edge triggering mechanism for data capture
• CMOS output structure compatible with TTL input levels

Applications

• Parallel-to-serial data conversion circuits
• General-purpose register storage applications
• Buffer memory interfaces in digital systems

Procurement Notes

Verify the specific suffix against official documentation, as variations may indicate differences in packaging or environmental compliance. Confirm that the component meets RoHS standards if required for your assembly process. Ensure the SOIC-20 footprint matches your PCB design constraints before finalizing procurement orders.

Selection Notes

Select this component when an octal latch is required with HCT-compatible input thresholds. Consider the 38 ns propagation delay and 50 MHz clock limit for timing analysis. The 20-SOIC package is suitable for surface-mount assembly. Evaluate thermal performance within the -55°C to +125°C operating range for industrial applications.

Part Context

This part belongs to the Texas Instruments CD74HCT377 family of octal D-type flip-flops. It is designed for high-speed CMOS applications requiring compatibility with standard TTL logic levels. The device provides efficient storage solutions for multi-bit data paths in complex digital integrated circuit designs.

Replacement Considerations

SN74HCT377DW is a documented substitute offering similar functionality with a 30 ns propagation delay.