CD74HC109M

Overview

The CD74HC109M is a dual JK-type flip-flop integrated circuit manufactured by Texas Instruments, belonging to the 74HC logic family. It features positive edge triggering and includes set (preset) and reset functions for each of its two independent elements. The device operates within a supply voltage range of 2V to 6V and supports a maximum clock frequency of 60 MHz. Key electrical parameters include a propagation delay of 30ns at 6V with a 50pF load, output currents of 5.2mA for both high and low states, and a static current of 4µA. It utilizes a 16-SOIC package with a width of 3.90mm.

Feature Summary

• Dual JK-type flip-flops with positive edge triggering
• Integrated set (preset) and reset control functions
• Complementary outputs available for each element

Applications

• Digital data storage and register circuits
• Frequency division and counting applications
• State machine implementation in digital systems

Procurement Notes

Verify that the specific part number suffix matches the required packaging format, such as tape and reel or cut tape, as availability varies by distributor. Confirm RoHS compliance status and ensure the operating temperature range meets the application requirements. Cross-reference manufacturer datasheets to validate pinout compatibility and electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when a dual JK flip-flop with positive edge triggering is required within the 74HC logic family. Ensure the system voltage falls between 2V and 6V to maintain proper operation. Consider the 16-SOIC package dimensions for PCB layout constraints. Verify that the 30ns propagation delay and 60MHz clock frequency are sufficient for the target application speed.

Part Context

This component is part of the broader 74HC series of high-speed CMOS logic devices produced by Texas Instruments. It shares functional similarities with other JK flip-flops in the family but is distinguished by its dual-element configuration and specific package type. The device is designed for general-purpose digital logic applications requiring reliable state storage and sequential control capabilities.

Replacement Considerations

Compatible substitutes include the SN74HC109 from Texas Instruments and the 74HC109 from Nexperia. These alternatives offer similar electrical characteristics and pinouts. Verify package compatibility and ensure that any substitute part meets the same voltage and temperature specifications.