74HCT273DB,118

Overview

The Nexperia 74HCT273DB,118 is an octal D-type edge-triggered flip-flop belonging to the HCT logic family. It features a master reset input and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides non-inverting outputs with specified high-level output current of -4 mA and low-level output current of 5.2 mA. Maximum propagation delay is 30 ns at 4.5 V with 50 pF load. It is housed in a 20-TSSOP package and supports operation from -40 °C to +125 °C.

Feature Summary

• Octal positive-edge triggered D-type flip-flop architecture
• Master reset functionality forces outputs LOW independently of clock
• CMOS low power dissipation with high noise immunity
• ESD protection exceeding 2000 V (HBM) and 1000 V (CDM)

Applications

• Parallel data storage and buffering
• Shift register construction
• Timing synchronization circuits
• Digital signal processing interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific packaging options such as cut tape or reel availability. Ensure the ordering part number matches the exact suffix requirements for the desired package variant and moisture sensitivity level prior to purchase.

Selection Notes

Select this component when TTL-compatible inputs are required with CMOS performance levels. The HCT series ensures compatibility with standard TTL logic families while offering improved noise margins. Consider the 20-TSSOP package for surface-mount applications requiring compact board space and reliable thermal performance across industrial temperature ranges.

Part Context

This device is part of the widely adopted 74HCT logic family, designed to bridge the gap between older TTL standards and modern CMOS technologies. The 74HCT273 specifically addresses applications needing multiple synchronized data latches. It serves as a fundamental building block for complex digital systems requiring reliable state retention and precise timing control.

Replacement Considerations

Direct functional equivalents include the 74HC273 series for broader voltage ranges or the 74AHCT273 for faster switching speeds. Cross-reference pinouts and electrical characteristics carefully to ensure compatibility with existing circuit designs without modification.