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SN74LV123AD
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SN74LV123AD

Product Overview

Category

SN74LV123AD belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as timing and pulse generation.

Characteristics

  • Low-voltage operation
  • High-speed performance
  • Wide operating temperature range
  • Small package size

Package

SN74LV123AD is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of SN74LV123AD lies in its ability to provide precise timing control and pulse generation in digital circuits.

Packaging/Quantity

SN74LV123AD is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Supply voltage: 2.0V to 5.5V
  • Operating temperature range: -40°C to +85°C
  • Propagation delay: 10 ns (typical)
  • Output current: ±8 mA
  • Input capacitance: 3 pF (typical)

Detailed Pin Configuration

SN74LV123AD consists of 16 pins, each serving a specific function:

  1. CLR (Clear)
  2. A (Input A)
  3. B (Input B)
  4. GND (Ground)
  5. RCext (External resistor-capacitor connection)
  6. Rext (External resistor connection)
  7. Cext (External capacitor connection)
  8. VCC (Supply voltage)
  9. Q (Output Q)
  10. Q̅ (Complementary output Q̅)
  11. S (Set)
  12. R (Reset)
  13. GND (Ground)
  14. RCext (External resistor-capacitor connection)
  15. Rext (External resistor connection)
  16. Cext (External capacitor connection)

Functional Features

SN74LV123AD offers the following functional features:

  • Monostable multivibrator operation
  • Precise pulse width control
  • Schmitt-trigger inputs for noise immunity
  • Edge-triggered inputs for accurate timing

Advantages and Disadvantages

Advantages

  • Low-voltage operation allows compatibility with a wide range of digital systems.
  • High-speed performance enables efficient pulse generation.
  • Small package size saves board space in compact designs.

Disadvantages

  • Limited output current may restrict use in certain applications requiring higher current levels.
  • Input capacitance can affect circuit performance in high-frequency applications.

Working Principles

SN74LV123AD operates as a monostable multivibrator, generating a single output pulse of a precise width when triggered by appropriate input signals. The timing characteristics are determined by external resistors and capacitors connected to the RCext, Rext, and Cext pins.

Detailed Application Field Plans

SN74LV123AD finds extensive application in various fields, including:

  1. Timing circuits in microcontrollers and microprocessors
  2. Pulse-width modulation (PWM) control in power electronics
  3. Frequency division and clock synchronization in communication systems
  4. Delay generation in digital signal processing
  5. Precision timing in scientific instruments

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74LV123AD include:

  1. CD74HC123E
  2. MC74VHC123ADR2G
  3. 74LVC123APW

These alternatives can be considered based on specific requirements and availability.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät SN74LV123AD :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of SN74LV123AD in technical solutions:

  1. Q: What is SN74LV123AD? A: SN74LV123AD is a dual retriggerable monostable multivibrator (also known as a "one-shot") integrated circuit.

  2. Q: What is the purpose of SN74LV123AD? A: SN74LV123AD is used to generate precise time delays or pulses in various electronic circuits.

  3. Q: What is the operating voltage range for SN74LV123AD? A: SN74LV123AD operates within a voltage range of 2V to 5.5V.

  4. Q: What is the maximum output current of SN74LV123AD? A: The maximum output current of SN74LV123AD is typically 8mA.

  5. Q: How many trigger inputs does SN74LV123AD have? A: SN74LV123AD has two independent trigger inputs, labeled A and B.

  6. Q: Can SN74LV123AD be used in both positive and negative edge-triggered applications? A: Yes, SN74LV123AD can be used in both positive and negative edge-triggered applications.

  7. Q: What is the typical propagation delay of SN74LV123AD? A: The typical propagation delay of SN74LV123AD is around 15ns.

  8. Q: Can SN74LV123AD be used in high-frequency applications? A: Yes, SN74LV123AD can be used in high-frequency applications as it has a wide operating frequency range.

  9. Q: Does SN74LV123AD have an adjustable pulse width? A: Yes, SN74LV123AD allows for adjustable pulse width through external timing components.

  10. Q: What are some common applications of SN74LV123AD? A: SN74LV123AD is commonly used in applications such as precision timing, pulse generation, frequency division, and synchronization circuits.

Please note that these answers are general and may vary depending on the specific requirements and use cases.