M74HC109B1R

Flip Flops Overview

The M74HC109B1R is a dual J-K flip-flop with preset and clear, manufactured by STMicroelectronics. It belongs to the 74HC series of high-speed CMOS logic devices. The component operates within a supply voltage range of 2V to 6V. It features low power dissipation with a maximum static current of 1 µA at 25°C. The device provides high noise immunity and symmetrical output impedance. It is designed for applications requiring reliable data storage and sequential logic control in digital systems.

Flip Flops Feature Summary

• Dual J-K flip-flop architecture with independent preset and clear inputs
• High-speed CMOS technology ensuring fast switching performance
• Wide operating voltage range supporting 2V to 6V supply rails
• Low power dissipation characteristics suitable for battery-operated devices

Flip Flops Applications

• Digital data storage circuits
• Sequential logic control systems
• Frequency dividers and counters
• Shift register implementations

Flip Flops Procurement Notes

Verify component authenticity through authorized distributors due to discontinued status. Check RoHS compliance documentation for environmental regulations. Confirm package integrity upon receipt as tube packaging may be affected during transit. Validate pin compatibility with existing PCB footprints before integration into new designs.

Flip Flops Selection Notes

Consider the M74HC109B1R for dual J-K flip-flop requirements within the 74HC family. Evaluate voltage compatibility with system power rails between 2V and 6V. Assess propagation delay specifications against timing constraints. Compare pinout configurations with alternative manufacturers if cross-sourcing is necessary for supply chain resilience.

Flip Flops Part Context

This component is part of STMicroelectronics' extensive 74HC logic portfolio. It complements other sequential logic devices like the M74HC74 and M74HC174. The device supports standard TTL loads and offers pin compatibility with legacy 74LS series equivalents. It serves as a fundamental building block for complex digital state machines and memory arrays.

Flip Flops Replacement Considerations

Direct substitutes include Texas Instruments CD74HC109E and SN74HC109N. Verify electrical parameter equivalence before substitution. Ensure mechanical footprint compatibility for direct replacement. Review datasheet differences regarding input protection levels and output drive capabilities.