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SN74AS109AN

SN74AS109AN

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Digital Logic
  • Characteristics: Dual J-K Positive-Edge-Triggered Flip-Flop
  • Package: DIP-16 (Dual In-Line Package with 16 pins)
  • Essence: Sequential Logic Device
  • Packaging/Quantity: Tube, 25 pieces per tube

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • High-Level Input Voltage: 2.0V 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: 15ns (typical)

Detailed Pin Configuration

The SN74AS109AN 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. J (Data Input J) - J input for the first flip-flop
  4. K (Data Input K) - K input for the first flip-flop
  5. Q (Output Q) - Output Q for the first flip-flop
  6. Q̅ (Complementary Output Q) - Complementary output Q for the first flip-flop
  7. GND (Ground) - Ground reference
  8. Q̅ (Complementary Output Q) - Complementary output Q for the second flip-flop
  9. Q (Output Q) - Output Q for the second flip-flop
  10. K (Data Input K) - K input for the second flip-flop
  11. J (Data Input J) - J input for the second flip-flop
  12. VCC (Positive Power Supply) - Positive power supply voltage
  13. Q̅ (Complementary Output Q) - Complementary output Q for the third flip-flop
  14. Q (Output Q) - Output Q for the third flip-flop
  15. K (Data Input K) - K input for the third flip-flop
  16. J (Data Input J) - J input for the third flip-flop

Functional Features

  • Dual J-K positive-edge-triggered flip-flop with clear functionality
  • Can be used as a synchronous binary counter or for general-purpose storage applications
  • Provides separate clock inputs for each flip-flop, allowing independent operation
  • Clear input allows resetting the flip-flops to a known state
  • High-speed operation with low power consumption
  • TTL-compatible inputs and outputs

Advantages and Disadvantages

Advantages: - Versatile functionality suitable for various digital logic applications - Independent clock inputs enable flexible operation - Clear input ensures reliable initialization - High-speed operation allows for efficient data processing - Compatible with TTL logic levels

Disadvantages: - Limited maximum operating frequency compared to some modern ICs - DIP package may not be suitable for space-constrained designs - Requires external components for complete circuit implementation

Working Principles

The SN74AS109AN is a dual J-K positive-edge-triggered flip-flop. It consists of two individual flip-flops, each with J and K inputs, a clock input, and complementary outputs (Q and Q̅). The flip-flops are triggered on the rising edge of the clock signal.

The J and K inputs determine the behavior of the flip-flops. When both J and K inputs are LOW, the flip-flop holds its previous state. When J is HIGH and K is LOW, the flip-flop sets its output to HIGH. Conversely, when J is LOW and K is HIGH, the flip-flop resets its output to LOW. When both J and K inputs are HIGH, the flip-flop toggles its output on each clock pulse.

The clear input (CLR) allows resetting the flip-flops to a known state when activated. This ensures reliable initialization of the circuit.

Detailed Application Field Plans

The SN74AS109AN can be used in various digital logic applications, including but not limited to:

  1. Synchronous binary counters
  2. Frequency dividers
  3. Shift registers
  4. State machines
  5. Data storage elements

Its versatility and independent clock inputs make it suitable for designs requiring multiple flip-flops with different clocking requirements.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74AS109AN include:

  1. CD4013BE - Dual D-Type Flip-Flop
  2. 74HC109 - Dual J-K Flip-Flop
  3. MC14013B - Dual Type "D" Flip-Flop

These alternatives may have slightly different specifications or

Καταγράψτε 10 συνήθεις ερωτήσεις και απαντήσεις που σχετίζονται με την εφαρμογή του SN74AS109AN σε τεχνικές λύσεις

Sure! Here are 10 common questions and answers related to the application of SN74AS109AN in technical solutions:

  1. Q: What is SN74AS109AN? A: SN74AS109AN is a dual J-K flip-flop integrated circuit (IC) that can be used in various digital applications.

  2. Q: What is the purpose of SN74AS109AN? A: SN74AS109AN is used to store and manipulate binary data in digital circuits, making it useful for tasks like counting, sequencing, and synchronization.

  3. Q: What is the voltage range supported by SN74AS109AN? A: SN74AS109AN operates with a voltage range of 4.5V to 5.5V.

  4. Q: How many flip-flops are there in SN74AS109AN? A: SN74AS109AN contains two independent J-K flip-flops.

  5. Q: What is the maximum clock frequency supported by SN74AS109AN? A: SN74AS109AN can operate at a maximum clock frequency of 100 MHz.

  6. Q: Can SN74AS109AN be cascaded to create larger counters? A: Yes, multiple SN74AS109AN ICs can be cascaded together to create larger counters or more complex sequential logic circuits.

  7. Q: Does SN74AS109AN have any built-in preset or clear functionality? A: No, SN74AS109AN does not have any built-in preset or clear functionality.

  8. Q: What is the power consumption of SN74AS109AN? A: The power consumption of SN74AS109AN is typically low, making it suitable for battery-powered applications.

  9. Q: Is SN74AS109AN compatible with TTL logic levels? A: Yes, SN74AS109AN is compatible with TTL (Transistor-Transistor Logic) logic levels.

  10. Q: What are some typical applications of SN74AS109AN? A: SN74AS109AN can be used in applications such as frequency dividers, counters, shift registers, and general-purpose digital logic circuits.

Please note that the answers provided here are general and may vary depending on specific circuit designs and requirements.