SN74AS109ADR

Product Overview

• Category: Integrated Circuit
• Use: Digital Logic
• Characteristics: Dual J-K Flip-Flop with Clear
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: High-speed, low-power consumption flip-flop
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Voltage: 2.4V (min)
• Low-Level Output Voltage: 0.4V (max)
• Maximum Operating Frequency: 100MHz
• Propagation Delay Time: 6ns (typical)

Detailed Pin Configuration

The SN74AS109ADR has a total of 16 pins, which are assigned as follows:

1. CLR (Clear) - Clear input for both flip-flops
2. CLK (Clock) - Clock input for both flip-flops
3. J1 (J Input 1) - J input for the first flip-flop
4. K1 (K Input 1) - K input for the first flip-flop
5. Q1 (Q Output 1) - Q output for the first flip-flop
6. Q̅1 (Q̅ Output 1) - Complementary Q output for the first flip-flop
7. GND (Ground) - Ground reference
8. Q̅2 (Q̅ Output 2) - Complementary Q output for the second flip-flop
9. Q2 (Q Output 2) - Q output for the second flip-flop
10. K2 (K Input 2) - K input for the second flip-flop
11. J2 (J Input 2) - J input for the second flip-flop
12. VCC (Positive Power Supply) - Positive power supply
13. NC (No Connection) - No connection
14. NC (No Connection) - No connection
15. NC (No Connection) - No connection
16. NC (No Connection) - No connection

Functional Features

• Dual J-K Flip-Flop: The SN74AS109ADR consists of two independent J-K flip-flops, allowing for simultaneous operation.
• Clear Function: The clear input (CLR) allows the user to reset both flip-flops to a known state.
• High-Speed Operation: With a maximum operating frequency of 100MHz, this IC is suitable for high-speed digital applications.
• Low-Power Consumption: The SN74AS109ADR is designed to minimize power consumption, making it energy-efficient.

Advantages and Disadvantages

Advantages: - Simultaneous Operation: The dual flip-flop design enables parallel processing, increasing efficiency. - Clear Function: The clear input provides flexibility in resetting the flip-flops as needed. - High-Speed Operation: Suitable for time-critical applications that require fast data processing.

Disadvantages: - Limited Voltage Range: The supply voltage range of 4.5V to 5.5V may restrict compatibility with certain systems. - Propagation Delay: The propagation delay time of 6ns may introduce timing issues in highly synchronized circuits.

Working Principles

The SN74AS109ADR 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 output. The clock input (CLK) triggers the flip-flops to update their outputs based on the current values of J and K. The clear input (CLR) allows the user to reset both flip-flops to a known state.

Detailed Application Field Plans

The SN74AS109ADR is commonly used in various digital logic applications, including:

1. Counters: The dual flip-flop design makes it suitable for implementing counters that require parallel processing.
2. Registers: It can be used as a building block for registers in microprocessors and other digital systems.
3. Synchronous Logic: The high-speed operation and clear function make it useful in synchronous logic circuits.

Detailed and Complete Alternative Models

• SN74LS109AN
• SN74HC109N
• SN74HCT109N
• CD40109BE
• MC74HC109N

These alternative models offer similar functionality and can be used as replacements for the SN74AS109ADR in various applications.

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