MC74F109N

Flip Flops Overview

The MC74F109N is a dual J-K positive edge-triggered flip-flop belonging to the onsemi 74F (FAST) logic series. It features two independent flip-flops within a single package, designed for high-speed digital applications. The device operates with a supply voltage range of 4.5 V to 5.5 V and supports a maximum operating frequency of 90 MHz. It provides a low-level output current capability of 20 mA and includes dedicated clock, preset, and clear inputs for precise state control. The component is housed in a 16-pin DIP package and is rated for operation across an extended temperature range.

Flip Flops Feature Summary

• Dual independent J-K flip-flop configuration for compact circuit design
• Positive edge-triggered operation ensuring synchronized data capture
• High-speed switching capabilities aligned with FAST logic standards
• Robust output drive strength suitable for direct interfacing

Flip Flops Applications

• High-speed binary counters and shift registers
• Frequency dividers and timing circuits
• Parallel-to-serial data conversion modules
• State machine implementations in industrial control systems

Flip Flops Procurement Notes

Verify that the specific part number matches the required 74F logic family specifications and package type. Confirm RoHS compliance status and material composition declarations if environmental regulations apply to the target market. Ensure the supplier provides valid traceability documentation for the semiconductor batch. Check for any obsolescence notices or lifecycle changes before finalizing procurement plans.

Flip Flops Selection Notes

Select this component when high-speed performance is critical compared to standard 74LS or 74HC families. Consider the 74F series characteristics for faster propagation delays and higher power consumption trade-offs. Evaluate the 16-pin DIP package constraints against available PCB real estate and assembly methods. Compare input/output electrical parameters with downstream load requirements to ensure signal integrity.

Flip Flops Part Context

This component belongs to the broader 74F (FAST) logic product line, which emphasizes speed over power efficiency. It serves as a fundamental building block for sequential logic circuits requiring reliable edge-triggered memory elements. The dual configuration allows designers to implement complex state sequences without consuming multiple separate packages, optimizing board space and interconnection complexity.

Flip Flops Replacement Considerations

Cross-reference with other manufacturers' 74F109 equivalents such as NXP variants. Verify pin compatibility and electrical parameter alignment before substitution. Check for updated packaging options or lead-free alternatives if existing inventory requires transition.