MM74HC273N

Flip Flops Overview

The MM74HC273N is an octal D-type flip-flop with positive-edge triggering, manufactured by onsemi. It operates within a supply voltage range of 2V to 6V and features non-inverting outputs. The device utilizes a 20-pin PDIP package for through-hole mounting. Key electrical parameters include a maximum clock frequency of 78 MHz and a propagation delay of 23ns at 6V with 50pF load. Output drive capability is specified at 5.2mA for both high and low states, with a static current of 8µA. The component supports a main reset function and operates across a temperature range of -40°C to 85°C.

Flip Flops Feature Summary

• Octal D-type flip-flop architecture with positive-edge triggering mechanism
• Non-inverting output configuration providing direct data state reflection
• Integrated master reset functionality for synchronous initialization

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations in digital logic systems
• Memory storage elements within microprocessor interfaces

Flip Flops Procurement Notes

Verify component authenticity through authorized distribution channels due to discontinued status. Confirm package integrity and pin alignment against the 20-PDIP specification. Cross-reference datasheet revisions to ensure compatibility with existing design requirements. Validate thermal performance within the specified operating temperature range during final assembly testing.

Flip Flops Selection Notes

Consider surface-mount alternatives such as the MM74HC273WM or 74VHC273MTCX for modern PCB layouts requiring smaller footprints. Evaluate the 74VHC series for applications demanding higher clock frequencies up to 110 MHz. Assess power consumption differences between HC and VHC families when designing battery-operated systems.

Flip Flops Part Context

This component belongs to the 74HC logic family, characterized by high-speed CMOS technology compatible with TTL inputs. The MM74HC273N represents a legacy through-hole variant of the octal flip-flop series. It serves as a fundamental building block for sequential logic designs requiring parallel data latching capabilities in industrial and consumer electronics applications.

Flip Flops Replacement Considerations

• CD74HC273E (Texas Instruments)
• SN74HC273N (Texas Instruments)