MM74C74N

Flip Flops Overview

The MM74C74N is a dual D-type flip-flop from onsemi's 74C series, housed in a 14-pin DIP package. It features positive-edge triggering with independent preset and clear inputs. The device operates on a supply voltage range of 3V to 15V, drawing a maximum static current of 60 µA. Key electrical parameters include an output current capability of 8mA for both high and low states, a propagation delay of 110ns at 10V with 50pF load, and a clock frequency of 8 MHz. It supports a wide operating temperature range from -55°C to 125°C.

Flip Flops Feature Summary

• Dual D-type flip-flop configuration with positive-edge triggering mechanism
• Independent active-low preset and clear functions not synchronized with the clock
• Complementary Q and Q outputs providing differential signal availability
• High noise immunity and low power consumption characteristic of CMOS technology

Flip Flops Applications

• Parallel data storage and buffering in digital systems
• Shift register construction for serial-to-parallel conversion
• Frequency division and counting circuits
• State machine implementation in control logic

Flip Flops Procurement Notes

Verify component authenticity through authorized distributors or certified suppliers due to obsolete status. Confirm package integrity and pin alignment against the 14-DIP specification. Review datasheet revisions for any historical manufacturing changes. Ensure storage conditions prevent moisture damage despite MSL level 1 classification. Cross-reference part numbers carefully as legacy components may have aliases or variant suffixes affecting compatibility.

Flip Flops Selection Notes

Select this component when wide voltage operation between 3V and 15V is required alongside extended industrial temperature ranges. Consider the 74C series for applications needing moderate speed with low static power dissipation. Evaluate the 110ns propagation delay against system timing requirements. Compare against HC or HCT families if higher speeds or TTL compatibility are necessary instead.

Flip Flops Part Context

The MM74C74N belongs to onsemi's comprehensive 74C logic family, designed using silicon-gate CMOS technology. This series provides functionality compatible with standard 74LS logic while offering superior power efficiency. The dual D-flip-flop architecture serves as a fundamental building block for sequential logic design. It represents a legacy solution for robust digital processing in demanding environments.

Flip Flops Replacement Considerations

Public confirmed substitute part numbers: SN74HC74DR (Texas Instruments). Verify pinout and functional compatibility before substitution.