CD74HC107EX

Overview

The CD74HC107EX is a dual J-K flip-flop integrated circuit manufactured by Harris Corporation, belonging to the HC/UH CMOS logic series. It operates synchronously on the negative edge of the clock signal and features two independent functional units within a single package. The device supports a supply voltage range of 2 V to 6 V and offers a maximum operating frequency of 20 MHz. It is designed for robust performance across an extended temperature range from -55 °C to +125 °C. The component utilizes a plastic DIP-8 surface mount package with a load capacitance specification of 50 pF and a maximum output current of 4 mA.

Feature Summary

• Dual independent J-K flip-flop configuration within a single integrated circuit package
• Synchronous operation triggered by the negative edge of the clock signal
• Extended industrial temperature rating suitable for harsh environmental conditions
• CMOS technology providing high noise immunity and low power consumption

Applications

• Digital state storage and sequential logic circuits
• Frequency division and counter circuit implementations
• Data shift register architectures
• Industrial control systems requiring wide temperature tolerance

Procurement Notes

Verify that the specific part number suffix 'EX' corresponds to the exact package type and manufacturer specifications required for your design. Confirm compliance with RoHS directives if necessary, as historical data indicates non-compliance for some variants. Ensure the supplier provides documentation confirming the negative edge triggering characteristic and the 2V to 6V operational voltage range. Cross-reference the manufacturer datasheet to validate the package marking and pinout against your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a design requires two independent synchronous J-K flip-flops in a compact form factor. It is appropriate for applications needing reliable operation at frequencies up to 20 MHz with a supply voltage between 2 V and 6 V. Consider this part for environments demanding operation down to -55 °C. Verify that the input logic levels are compatible with the chosen supply voltage and that the load capacitance does not exceed the specified 50 pF limit to maintain signal integrity.

Part Context

This component belongs to the CD74HC107 family of dual J-K flip-flops produced by Harris Corporation. It is part of the broader HC/UH CMOS logic series, which is known for compatibility with standard TTL logic levels while offering improved noise margins. The 'EX' designation typically refers to a specific packaging variant or manufacturing batch code associated with Harris's product line. This series serves as a fundamental building block for sequential digital logic designs.

Replacement Considerations

Public confirmed substitute part numbers: CD74HC107M, CD74HC107E, CD74HC107N.