74HCT377N,652

Overview

The NXP 74HCT377N,652 is an octal D-type flip-flop with data enable and positive-edge triggering. It operates on a supply voltage range of 4.5 V to 5.5 V. The device features eight independent D-type flip-flops sharing a common clock and master reset. It utilizes TTL input levels for compatibility with standard logic families. The component is housed in a 20-pin PDIP package. Maximum propagation delay is specified at 32 ns under a 50 pF load condition at 4.5 V. Operating temperatures range from -40 °C to +125 °C.

Feature Summary

• Octal configuration with eight positive-edge triggered D-type flip-flops
• Data enable input controls output state relative to clock transitions
• TTL-compatible input levels ensure interface versatility
• Common clock and master reset inputs simplify circuit design

Applications

• Parallel-to-serial data conversion circuits
• Register storage within microprocessor systems
• Timing sequence control logic
• Buffer memory applications in industrial automation

Procurement Notes

Verify the specific ordering code 74HCT377N,652 against official Nexperia documentation to confirm the PDIP package and HCT logic family specifications. Ensure that procurement sources provide valid RoHS compliance certificates. Cross-reference the manufacturer's datasheet for accurate electrical characteristics and thermal limits before finalizing supply chain agreements.

Selection Notes

Select this component when designing systems requiring parallel data latching with TTL-level interface compatibility. The wide operating temperature range supports harsh industrial environments. Consider the 20-pin DIP package for prototyping or through-hole manufacturing requirements. Evaluate power dissipation constraints as CMOS technology offers low static power consumption during stable states.

Part Context

This part belongs to the 74HCT series of high-speed CMOS logic devices manufactured by Nexperia. The series bridges the gap between older TTL standards and modern CMOS performance. The octal flip-flop architecture provides efficient data handling capabilities. This specific variant emphasizes robust noise immunity and reliable operation across extended temperature ranges.

Replacement Considerations

Direct substitutes include other 74HCT377 variants from manufacturers such as Texas Instruments or ON Semiconductor. Verify pinout compatibility and electrical parameter alignment. Alternative packages like SSOP or SO require mechanical adaptation. Ensure equivalent noise immunity and ESD protection levels are maintained in cross-brand replacements.