74LS109 DIP Dual J-Not-K Positive-Edge-Triggered Flip-Flop with Clear And Preset

Product Description: 74LS109 DIP Dual J-Not-K Positive-Edge-Triggered Flip-Flop with Clear and Preset

The 74109 is a dual J-Not-K flip-flop housed in a DIP-14 package, designed to offer positive-edge-triggered operation with the added functionality of clear and preset inputs for greater control over its state. This versatile flip-flop can be used for toggling and storing binary data in sequential logic circuits, where precision timing and reliable state changes are essential.

Each flip-flop in the 74LS109 operates independently, with its own J, Not-K, clock, clear, and preset inputs. The J-Not-K configuration is a variant of the standard J-K flip-flop, where the K input is inverted (i.e., Not-K), adding flexibility and simplifying certain control logic implementations. The flip-flop changes state on the positive edge of the clock signal, making it ideal for use in synchronous systems.

The clear input allows for an asynchronous reset, setting the output to a known state (usually 0), while the preset input allows for asynchronous setting of the output (usually 1). These features are critical in systems that require precise initialization or reset conditions before operation begins.

The 74LS109 is TTL-compatible, ensuring compatibility with other TTL logic devices in digital circuits. Its DIP-14 package makes it easy to integrate into both breadboards for prototyping and PCBs for production-level designs.

Features:

• Dual J-Not-K Flip-Flop: The 74LS109 contains two independent flip-flops, each with J, Not-K, clock, clear, and preset inputs, allowing for flexible operation and control of digital states.
• Positive-Edge-Triggered: The flip-flops are triggered by the positive edge of the clock signal, ensuring synchronized operation in clocked digital systems.
• Clear Input: Each flip-flop features a clear input, which asynchronously resets the output to a known state (usually 0), enabling precise initialization of the system.
• Preset Input: The preset input allows for asynchronous setting of the output to a high state (1), providing greater control over the flip-flop’s initial conditions.
• TTL Compatible: The IC is TTL-compatible, making it easy to interface with other TTL logic family devices.
• Low Power Consumption: Designed to operate efficiently with low power consumption, making it suitable for battery-powered or energy-efficient applications.
• DIP-14 Package: The DIP-14 package is easy to handle and mount on PCBs, offering convenient integration into both prototyping and production environments.
• Reliable State Changes: The flip-flops change states on the positive clock edge and can be preset or cleared asynchronously, making them ideal for systems requiring controlled state transitions.

Applications:

• Digital Counters and Registers: The 74LS109 is ideal for use in binary counters and registers, where data needs to be stored, toggled, or reset on a clock signal.
• Sequential Logic Circuits: The flip-flops are commonly used in sequential logic circuits where state transitions depend on both clocking and external inputs, such as in state machines or sequencers.
• Memory Storage: In digital memory systems, the 74LS109 can be used to store binary data temporarily, with control over the initial state via clear or preset inputs.
• Control Systems: Used in control systems, the flip-flops provide synchronized state changes based on clock pulses, making them suitable for applications such as timing circuits, pulse generation, and event counting.
• Timing and Synchronization: The 74109 is useful in timing and synchronization tasks where precise control over binary states is needed, such as in clock division or frequency synthesis.
• Edge-Triggered Applications: The positive-edge-triggered nature of the flip-flop makes it perfect for use in systems where clock synchronization is required, such as in clocked logic circuits, synchronous counters, and serial communication systems.
• Embedded Systems: In embedded systems, the 74LS109  is widely used for controlling states or storing data in systems that require both clocking and asynchronous preset/reset functionality.

Package Included:

• 1 x 74LS109 Dual J-Not-K Positive-Edge-Triggered Flip-Flop with Clear and Preset IC
  Please note that the product image is for illustrative purposes only. The actual product may vary slightly in appearance.