MC74HCT273ADW

Flip Flops Overview

The MC74HCT273ADW is an octal D-type flip-flop manufactured by onsemi, formerly Motorola. It belongs to the HCT logic series, featuring TTL-compatible inputs and CMOS outputs. The device contains eight independent D-type flip-flops with a common clock and master reset input. Outputs are non-inverted. It operates within a supply voltage range of 4.5 V to 5.5 V. The component is housed in a 20-pin SOIC package and supports surface-mount installation. It ensures data storage on positive clock transitions.

Flip Flops Feature Summary

• Octal configuration with eight independent D-type flip-flops sharing a single clock and master reset line
• TTL-compatible input levels combined with standard CMOS output characteristics for mixed-logic interfacing
• Positive-edge triggering mechanism captures data from D inputs to Q outputs upon clock transition
• Master reset function forces all outputs low independently of clock or data states

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Register arrays for temporary data storage in digital systems
• State machine implementation in control logic
• Buffering interfaces between microprocessors and peripheral devices

Flip Flops Procurement Notes

Verify the manufacturer designation carefully, as onsemi acquired Motorola's semiconductor business. Confirm the specific suffix 'ADW' corresponds to the SOIC-20 package variant. Check RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the source document explicitly lists this part number to avoid confusion with HC series equivalents.

Flip Flops Selection Notes

Select this component when TTL-level input compatibility is required alongside CMOS output drive capabilities. The HCT series is suitable for systems mixing 5V CMOS and TTL logic families. Consider the propagation delay and output current specifications against your load requirements. Verify that the SOIC-20 package fits your PCB footprint constraints compared to DIP or TSSOP alternatives.

Flip Flops Part Context

This part is part of the 74HCT273 family of octal D-type flip-flops. It serves as a fundamental building block for sequential logic circuits. The device provides reliable data latching functionality in high-speed digital applications. Its design facilitates easy integration into complex digital systems requiring multiple parallel data registers.

Flip Flops Replacement Considerations

MC74HCT273ADWR2G

Flip Flops FAQ

What is the trigger type of the MC74HCT273ADW?

The device uses positive-edge triggering, meaning data is transferred from the D inputs to the Q outputs on the rising edge of the clock signal.

How does the master reset input function?

A LOW signal on the master reset (MR) input forces all eight outputs to a LOW state, regardless of the clock or data input conditions.

Is this component compatible with TTL logic levels?

Yes, the HCT series is designed with TTL-compatible input thresholds, allowing direct interfacing with TTL logic outputs while providing CMOS output drive.