SN74AS109ANSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: Dual J-K Flip-Flop with Clear
• Package: 16-SOIC (Small Outline Integrated Circuit)
• Essence: This IC is a dual J-K flip-flop with clear functionality, designed for digital logic applications.
• Packaging/Quantity: The SN74AS109ANSR is available in a 16-SOIC package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Logic Family: AS
• Number of Flip-Flops: 2
• Clock Trigger Type: Positive Edge
• Propagation Delay: 12ns
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AS109ANSR has a total of 16 pins, which are assigned specific functions as follows:

1. CLR (Clear) - Active LOW input pin for clearing the flip-flop.
2. CLK (Clock) - Input pin for clock signal.
3. J1 (J Input 1) - Input pin for J input of the first flip-flop.
4. K1 (K Input 1) - Input pin for K input of the first flip-flop.
5. Q1 (Q Output 1) - Output pin for Q output of the first flip-flop.
6. Q̅1 (Q̅ Output 1) - Complementary output pin for Q output of the first flip-flop.
7. GND (Ground) - Ground reference pin.
8. Q̅2 (Q̅ Output 2) - Complementary output pin for Q output of the second flip-flop.
9. Q2 (Q Output 2) - Output pin for Q output of the second flip-flop.
10. K2 (K Input 2) - Input pin for K input of the second flip-flop.
11. J2 (J Input 2) - Input pin for J input of the second flip-flop.
12. VCC (Supply Voltage) - Positive supply voltage pin.

Functional Features

• Dual J-K flip-flop with clear functionality.
• Positive-edge triggered clock input.
• Asynchronous active LOW clear input.
• Individual J and K inputs for each flip-flop.
• Complementary outputs available for both flip-flops.

Advantages and Disadvantages

Advantages: - Dual flip-flop design allows for more complex digital logic operations. - Clear functionality provides control over the initial state of the flip-flops. - Wide operating temperature range (-40°C to 85°C) enables usage in various environments.

Disadvantages: - Limited number of flip-flops (2) compared to other ICs with higher count. - Propagation delay of 12ns may not be suitable for high-speed applications.

Working Principles

The SN74AS109ANSR operates based on the principles of J-K flip-flops. The J and K inputs determine the next state of the flip-flops based on the current state and clock signal. The clear input allows for resetting the flip-flops to a known state. The positive-edge triggered clock input synchronizes the state changes of the flip-flops.

Detailed Application Field Plans

The SN74AS109ANSR can be used in various digital logic applications, including but not limited to: - Sequential logic circuits - Counters and frequency dividers - State machines and control units - Data storage and retrieval systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74AS109ANSR include: - SN74LS109AN - CD4013BE - MC14013BCL

These alternative models may have different specifications, pin configurations, or package types, but they can serve as substitutes depending on specific requirements.

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