74AC109PC

Flip Flops Overview

The onsemi 74AC109PC is a dual positive-edge triggered J-K flip-flop housed in a 16-pin PDIP package. It operates within a supply voltage range of 2 V to 6 V and supports an average propagation delay of 20 ns with a drive strength of 8 mA. The device features balanced outputs, preset and clear functions, and includes positive input clamp diodes for protection. It is designed for high-speed applications with a clock frequency capability up to 100 MHz.

Flip Flops Feature Summary

• Dual-channel J-K flip-flop architecture with positive edge triggering
• Integrated preset and clear control functions for state management
• Balanced output structure ensuring signal integrity
• Positive input clamp diodes for enhanced noise immunity

Flip Flops Applications

• High-speed digital data storage circuits
• Frequency division and counting logic modules
• Parallel-to-serial data conversion interfaces
• State machine implementation in industrial control systems

Flip Flops Procurement Notes

Verify the specific suffix 'PC' confirms the PDIP-16 through-hole package variant. Confirm RoHS compliance status via official documentation as manufacturing practices may vary by production era. Check for obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.

Flip Flops Selection Notes

Select this component when dual independent J-K flip-flops are required in a through-hole DIP format. Ensure the design accommodates the 2 V to 6 V operating range and 8 mA drive current. Verify that the 20 ns propagation delay meets the system timing requirements for the intended clock frequencies.

Flip Flops Part Context

This part belongs to the 74AC logic family, known for CMOS technology offering higher speeds than standard 74LS series while maintaining low power consumption. The 74AC109 specifically provides dual J-K functionality with preset and clear controls, distinguishing it from simpler D-type or T-type flip-flops in the same family.

Flip Flops Replacement Considerations

SN74HC109 is a pin-compatible alternative with similar functionality but different electrical characteristics including lower drive strength (8 mA) and potentially different switching thresholds. Verify voltage compatibility and timing parameters before substitution.