CD74AC109M

Overview

The CD74AC109M is a dual J-K flip-flop integrated circuit manufactured by Harris Corporation. It features two independent positive-edge-triggered flip-flops within a single package. The device operates on a supply voltage range of 1.5V to 5.5V and supports clock frequencies up to 100 MHz. It is housed in a 16-SOIC surface-mount package with a width of 3.90mm. The operating temperature range extends from -55°C to 125°C, ensuring reliability across industrial conditions.

Feature Summary

• Dual configuration providing two independent J-K flip-flops for complex sequential logic applications
• High-speed operation capability supporting clock frequencies up to 100 MHz
• Wide supply voltage compatibility ranging from 1.5V to 5.5V for flexible power integration
• Extended industrial temperature rating from -55°C to 125°C for robust environmental performance

Applications

• High-speed data processing systems requiring rapid synchronization
• Sequential logic circuits in industrial control environments
• Digital signal processing modules operating under wide temperature variations

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'M' corresponds to the 16-SOIC package variant. Check for RoHS compliance status as historical records may indicate non-compliance depending on production batch. Ensure storage conditions maintain integrity given the component's age and potential obsolescence status in current market listings.

Selection Notes

Select this component when dual J-K functionality is required in a compact surface-mount form factor. The 100 MHz clock speed makes it suitable for high-frequency digital designs. Consider the 1.5V to 5.5V operating range for low-power or standard logic interface requirements. Verify pinout compatibility with existing PCB layouts due to the specific SOIC footprint dimensions.

Part Context

This part belongs to the Harris Corporation AC series of logic integrated circuits. It serves as a fundamental building block for sequential logic design, offering dual flip-flop capabilities in a small outline package. The AC series is characterized by high-speed performance and wide voltage operation compared to earlier HC or HCT families.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate generic 74AC109 equivalents from other manufacturers only if pin-to-pin compatibility and electrical specifications are verified against original datasheets.