CD74HC109MT

Overview

The CD74HC109MT is a dual positive-edge-triggered J-K flip-flop from the Texas Instruments 74HC series, housed in a 16-SOIC surface-mount package. It operates on a supply voltage range of 2V to 6V with a maximum propagation delay of 30ns at 6V and 50pF load. The device features set and reset functions, CMOS outputs, and supports clock frequencies up to 60MHz. It includes complementary outputs and maintains a static current of 4µA across an operating temperature range of -55°C to 125°C.

Feature Summary

• Dual positive-edge-triggered J-K flip-flops with independent set and reset controls
• CMOS logic family ensuring low power consumption and wide voltage operation
• Complementary output configuration for versatile digital circuit integration

Applications

• High-speed data storage and shift register applications
• Frequency division and counting circuits
• State machine implementation in digital control systems

Procurement Notes

Verify the specific suffix 'MT' against the manufacturer's official datasheet to confirm the tape-and-reel packaging quantity and moisture sensitivity level. Ensure the order matches the exact 16-SOIC variant requirements for your PCB layout. Cross-reference RoHS compliance status directly with the latest production release notes.

Selection Notes

Select this component when dual J-K functionality within a single package is required for space-constrained designs. The 74HC series offers compatibility with standard CMOS logic levels. Consider the 2V to 6V operating range for systems requiring flexible voltage domains. Verify that the 60MHz clock frequency meets the system timing requirements.

Part Context

This part belongs to the Texas Instruments 74HC (High-speed CMOS) logic family, designed for high-speed operations while maintaining low power dissipation. The 74HC109 specifically provides two independent J-K flip-flops, distinguishing it from single-flip-flop or D-type variants within the same series. It serves as a fundamental building block for sequential logic design.

Replacement Considerations

Public confirmed substitutes include SN74HC109NSR and CD74HC109M96. Verify pinout compatibility and electrical specifications before substitution.