DM74LS109AN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Dual JK Positive Edge-Triggered Flip-Flop with Clear and Preset
• Package: 16-pin DIP (Dual In-line Package)
• Essence: The DM74LS109AN is a dual JK flip-flop IC that can store one bit of data in each flip-flop. It has additional features such as clear and preset inputs, making it versatile for various applications.
• Packaging/Quantity: Available in tubes or reels, with a quantity of 25 pieces per tube/reel.

Specifications

• Supply Voltage: 4.75V to 5.25V
• Operating Temperature Range: 0°C to 70°C
• Propagation Delay Time: 15ns (typical)
• Input Capacitance: 3pF (typical)
• Output Current: -0.4mA to 8mA
• Power Dissipation: 500mW (max)

Detailed Pin Configuration

The DM74LS109AN has a total of 16 pins, which are assigned specific functions:

1. CLR (Clear) - Active LOW input used to reset the flip-flop.
2. PR (Preset) - Active LOW input used to set the flip-flop.
3. CP (Clock Pulse) - Input used to trigger the flip-flop on the positive edge.
4. J (Data Input) - Input for the J input of the flip-flop.
5. K (Data Input) - Input for the K input of the flip-flop.
6. Q1 (Flip-Flop Output) - Output for the first flip-flop.
7. Q1̅ (Complementary Output) - Complementary output for the first flip-flop.
8. GND (Ground) - Ground reference for the IC.
9. Q2 (Flip-Flop Output) - Output for the second flip-flop.
10. Q2̅ (Complementary Output) - Complementary output for the second flip-flop.
11. VCC (Supply Voltage) - Positive supply voltage for the IC. 12-16. NC (No Connection) - These pins are not connected and are left unused.

Functional Features

• Dual JK flip-flop with clear and preset inputs.
• Positive edge-triggered operation.
• Can store one bit of data in each flip-flop.
• Outputs provide both true and complementary outputs.
• Wide operating voltage range.
• Low power consumption.
• High-speed operation.

Advantages and Disadvantages

Advantages: - Versatile functionality with clear and preset inputs. - Reliable and stable performance. - Compact size and easy to integrate into circuits. - Suitable for a wide range of applications. - Provides both true and complementary outputs.

Disadvantages: - Limited number of flip-flops per IC. - Requires external clock signal for operation. - Not suitable for high-frequency applications.

Working Principles

The DM74LS109AN is a positive edge-triggered dual JK flip-flop. It stores one bit of data in each flip-flop, which can be set or cleared using the preset and clear inputs. The flip-flops are triggered on the rising edge of the clock pulse input. The J and K inputs determine the state of the flip-flops based on their current state and the clock pulse. The outputs provide both true and complementary outputs, allowing for flexible use in various digital circuits.

Detailed Application Field Plans

The DM74LS109AN can be used in various applications, including:

1. Sequential logic circuits
2. Counters and dividers
3. Data storage and retrieval systems
4. Frequency division circuits
5. Control systems
6. Digital communication systems
7. Memory address decoding

Detailed and Complete Alternative Models

1. SN74LS109AN - Similar dual JK flip-flop IC with clear and preset inputs, manufactured by Texas Instruments.
2. CD4013BE - Dual D-type flip-flop IC with clear and preset inputs, manufactured by Texas Instruments.
3. MC14013BCL - Dual D-type flip-flop IC with set and reset inputs, manufactured by ON Semiconductor.

These alternative models offer similar functionality and can be used as substitutes for the DM74LS109AN in various applications.

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