SN74ALS109ADR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: Dual J-K Positive-Edge-Triggered Flip-Flop
• Package: SOIC-16
• Essence: The SN74ALS109ADR is a dual J-K positive-edge-triggered flip-flop IC that can store and transfer binary data. It is commonly used in digital systems for various applications.
• Packaging/Quantity: The SN74ALS109ADR is available in a standard SOIC-16 package and is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Logic Family: ALS
• Number of Flip-Flops: 2
• Trigger Type: Positive Edge
• Clock Frequency: Up to 100MHz
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 10ns (typical)

Detailed Pin Configuration

The SN74ALS109ADR has a total of 16 pins, which are assigned specific functions as follows:

1. CLR (Clear) - Active Low Clear Input
2. CLK (Clock) - Positive Edge-Triggered Clock Input
3. J1 (J1 Input) - J Input for Flip-Flop 1
4. K1 (K1 Input) - K Input for Flip-Flop 1
5. Q1 (Q1 Output) - Q Output for Flip-Flop 1
6. Q̅1 (Q̅1 Output) - Complementary Q Output for Flip-Flop 1
7. GND (Ground) - Ground Reference
8. Q̅2 (Q̅2 Output) - Complementary Q Output for Flip-Flop 2
9. Q2 (Q2 Output) - Q Output for Flip-Flop 2
10. K2 (K2 Input) - K Input for Flip-Flop 2
11. J2 (J2 Input) - J Input for Flip-Flop 2
12. PRE (Preset) - Active Low Preset Input
13. PR̅E (Preset Complement) - Complementary Preset Input
14. VCC (Supply Voltage) - Positive Power Supply
15. GND (Ground) - Ground Reference
16. CLR̅ (Clear Complement) - Complementary Clear Input

Functional Features

• Dual J-K flip-flops with individual clear and preset inputs.
• Positive-edge-triggered operation allows data to be stored and transferred on the rising edge of the clock signal.
• The clear and preset inputs provide control over the initial state of the flip-flops.
• Complementary outputs (Q and Q̅) are available for each flip-flop.

Advantages and Disadvantages

Advantages: - Dual flip-flop configuration provides flexibility in digital circuit design. - Positive-edge-triggered operation ensures reliable data storage and transfer. - Clear and preset inputs allow for easy initialization of the flip-flops. - Complementary outputs facilitate various logic operations.

Disadvantages: - Limited number of flip-flops per IC package. - Requires an external clock signal for proper operation. - May not be suitable for applications requiring high-speed operation beyond its specified frequency range.

Working Principles

The SN74ALS109ADR operates based on the principles of J-K flip-flops. Each flip-flop has two inputs, J and K, which control the state of the flip-flop. The positive-edge-triggered clock input (CLK) determines when the data is stored or transferred.

When the clock signal transitions from low to high (rising edge), the J-K flip-flops latch the data present at their inputs. The stored data is then available at the respective Q and Q̅ outputs. The clear (CLR) and preset (PRE) inputs allow for initialization of the flip-flop states.

Detailed Application Field Plans

The SN74ALS109ADR can be used in various digital logic applications, including but not limited to:

1. Sequential logic circuits
2. State machines
3. Counters and dividers
4. Data storage and transfer systems
5. Synchronous digital systems

Its dual flip-flop configuration and versatile functionality make it suitable for a wide range of applications that require reliable data storage and transfer with control over initial states.

Detailed and Complete Alternative Models

• SN74ALS109AN
• SN74ALS109AD
• SN74ALS109ADE4
• SN74ALS109ADRQ1
• SN74ALS109AFN

These alternative models offer similar functionality and characteristics to the SN74ALS109ADR, providing options for different package types or specific requirements.

(Note: The list of alternative models may