CD74HCT377M

Overview

The CD74HCT377M is an octal D-type flip-flop manufactured by Harris Corporation, belonging to the HCT logic series. It features eight positive-edge-triggered D flip-flops with true outputs and a clock enable function. The device operates within a supply voltage range of 4.5 V to 5.5 V, providing a propagation delay of 38 ns. It utilizes a 20-pin SOIC surface-mount package and supports a wide operating temperature range from -55 °C to +125 °C.

Feature Summary

• Octal configuration containing eight independent D-type flip-flops for parallel data storage
• Positive-edge triggering mechanism synchronized with the clock signal input
• Integrated clock enable functionality to control data latching operations
• CMOS output structure compatible with TTL input levels

Applications

• Parallel-to-serial data conversion circuits
• General-purpose register storage applications
• Shift register configurations in digital systems
• Data buffering between asynchronous logic blocks

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as original documentation indicates non-compliance. Validate package markings against official datasheet specifications to ensure correct part identification. Request detailed test reports if required for industrial qualification.

Selection Notes

Select this component when requiring high-speed octal storage with TTL-compatible inputs. Ensure system design accommodates the specified 4.5 V to 5.5 V supply voltage range. Consider thermal management capabilities given the extended temperature rating up to 125 °C. Verify PCB layout compatibility with the 20-SOIC footprint dimensions.

Part Context

This component belongs to the CD74HCT377 family of octal D-type flip-flops. It represents the Harris Corporation variant of the standard 74HCT377 logic device. The HCT series provides CMOS performance with TTL-compatible input thresholds, facilitating integration into mixed-logic systems requiring high noise immunity and low power consumption.

Replacement Considerations

CD74HCT377ME4 (Texas Instruments)