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SN74AHC123ADR
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SN74AHC123ADR

Product Overview

Category

SN74AHC123ADR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Schmitt-trigger inputs for noise immunity
  • Monostable multivibrator functionality

Package

SN74AHC123ADR is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of SN74AHC123ADR lies in its ability to generate precise and stable time delays or pulses in digital systems.

Packaging/Quantity

SN74AHC123ADR is typically packaged in reels containing 2500 units per reel.

Specifications

  • Supply Voltage: 2V to 5.5V
  • Operating Temperature Range: -40°C to 85°C
  • Propagation Delay: 8 ns (typical)
  • Output Current: ±8 mA
  • Trigger Voltage Levels: VCC/2, 0.8VCC

Detailed Pin Configuration

  1. CLR (Clear)
  2. A (Input A)
  3. B (Input B)
  4. GND (Ground)
  5. RCext (External Resistor-Capacitor)
  6. Q (Output)
  7. VCC (Supply Voltage)
  8. NC (No Connection)
  9. NC (No Connection)
  10. NC (No Connection)
  11. NC (No Connection)
  12. NC (No Connection)
  13. NC (No Connection)
  14. NC (No Connection)
  15. NC (No Connection)
  16. NC (No Connection)

Functional Features

  • Monostable Multivibrator: The SN74AHC123ADR can be configured as a monostable multivibrator, generating a single output pulse of a specific duration upon receiving a trigger signal.
  • Schmitt-trigger Inputs: The IC incorporates Schmitt-trigger inputs, providing improved noise immunity and hysteresis.

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient timing and synchronization in digital systems.
  • Low power consumption makes it suitable for battery-powered devices.
  • Wide operating voltage range enables compatibility with various power supply levels.
  • Schmitt-trigger inputs enhance noise immunity, ensuring reliable operation in noisy environments.

Disadvantages

  • Limited number of available pins may restrict the complexity of circuits that can be implemented using this IC.
  • Propagation delay of 8 ns (typical) may not be sufficient for applications requiring extremely precise timing.

Working Principles

The SN74AHC123ADR operates based on the principles of digital logic. It utilizes internal circuitry to generate precise time delays or pulses. By configuring the external resistor-capacitor (RC) network, the desired delay duration can be set. The IC responds to trigger signals applied to the input pins, producing an output pulse of the specified duration.

Detailed Application Field Plans

SN74AHC123ADR finds applications in various fields, including: 1. Timing circuits in microcontrollers and microprocessors. 2. Pulse generation for communication protocols. 3. Synchronization of digital systems. 4. Delay circuits in industrial automation. 5. Control systems requiring precise timing.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74AHC123ADR are: 1. CD74HC123E 2. MC74HC123AN 3. HEF4538BP 4. 74HCT123D

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

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af SN74AHC123ADR i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of SN74AHC123ADR in technical solutions:

  1. Q: What is SN74AHC123ADR? A: SN74AHC123ADR is a dual retriggerable monostable multivibrator (also known as a "one-shot") integrated circuit.

  2. Q: What is the purpose of SN74AHC123ADR? A: SN74AHC123ADR is used to generate precise time delays or pulses in various electronic circuits.

  3. Q: What is the operating voltage range for SN74AHC123ADR? A: The operating voltage range for SN74AHC123ADR is typically between 2V and 5.5V.

  4. Q: How many independent monostable multivibrators are there in SN74AHC123ADR? A: SN74AHC123ADR contains two independent monostable multivibrators.

  5. Q: What is the maximum output current that SN74AHC123ADR can sink/source? A: SN74AHC123ADR can sink/source up to 8mA of current.

  6. Q: Can SN74AHC123ADR be used in both astable and monostable modes? A: No, SN74AHC123ADR is specifically designed for monostable operation.

  7. Q: What is the typical propagation delay of SN74AHC123ADR? A: The typical propagation delay of SN74AHC123ADR is around 9ns.

  8. Q: Can SN74AHC123ADR tolerate high input voltages? A: Yes, SN74AHC123ADR has a wide input voltage tolerance range, typically from -0.5V to 7V.

  9. Q: What is the maximum power dissipation of SN74AHC123ADR? A: The maximum power dissipation of SN74AHC123ADR is 500mW.

  10. Q: Can SN74AHC123ADR be used in automotive applications? A: Yes, SN74AHC123ADR is suitable for automotive applications as it meets the necessary standards and specifications.

Please note that these answers are general and may vary depending on specific datasheet information and application requirements.