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74HC123D,653
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74HC123D,653

Product Overview

Category

The 74HC123D,653 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with TTL inputs
  • Schmitt-trigger action on all inputs
  • Monostable multivibrator functionality

Package

The 74HC123D,653 is available in a small outline package (SO) with 16 pins.

Essence

The essence of this product lies in its ability to provide precise timing and control signals in digital circuits.

Packaging/Quantity

The 74HC123D,653 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: -0.5V to VCC + 0.5V
  • Output Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +125°C
  • Propagation Delay Time: 22 ns (typical)
  • Trigger Pulse Width Range: 23 ns to 1000 ns

Detailed Pin Configuration

The 74HC123D,653 has 16 pins, which are assigned specific functions as follows:

  1. Clear (CLR)
  2. A Input
  3. B Input
  4. Ground (GND)
  5. Bypass Capacitor (VCC)
  6. Control Voltage (CV)
  7. Monostable Output (nQ)
  8. Monostable Output (Q)
  9. Control Voltage (CV)
  10. Ground (GND)
  11. A Input
  12. B Input
  13. Trigger (TR)
  14. Reset (RD)
  15. Output (nQ)
  16. Output (Q)

Functional Features

The 74HC123D,653 offers the following functional features:

  • Monostable multivibrator operation
  • Precise timing control with adjustable pulse width
  • Schmitt-trigger action for noise immunity
  • Compatibility with TTL logic levels
  • Wide operating voltage range for flexibility in various applications

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient signal processing.
  • Low power consumption makes it suitable for battery-powered devices.
  • Wide operating voltage range enables compatibility with different systems.
  • Schmitt-trigger action on all inputs ensures reliable performance in noisy environments.

Disadvantages

  • Limited number of available alternative models.
  • May require additional external components for certain applications.
  • Not suitable for high-power or high-voltage applications.

Working Principles

The 74HC123D,653 operates as a monostable multivibrator, generating a single output pulse of a specific duration in response to an input trigger signal. The pulse width can be adjusted using the control voltage input. It utilizes internal flip-flops and logic gates to achieve precise timing control.

Detailed Application Field Plans

The 74HC123D,653 finds applications in various fields, including: 1. Timing circuits in microcontrollers and digital systems. 2. Pulse generation for communication protocols. 3. Control circuits in industrial automation. 4. Frequency division and synchronization in electronic devices. 5. Precision timing in scientific instruments.

Detailed and Complete Alternative Models

While the 74HC123D,653 is a popular choice, there are alternative models available that offer similar functionality. Some notable alternatives include: - CD74HC123E - SN74HC123N - MC74HC123AN

These alternatives provide comparable features and can be used as substitutes depending on specific requirements.

In conclusion, the 74HC123D,653 is a versatile integrated circuit used for precise timing and control applications in digital electronics. Its high-speed operation, low power consumption, and compatibility with TTL inputs make it a popular choice among designers. However, it is important to consider alternative models based on specific needs and availability.

Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät 74HC123D,653 :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of 74HC123D,653 in technical solutions:

  1. Q: What is the 74HC123D,653? A: The 74HC123D,653 is a dual retriggerable monostable multivibrator IC, commonly used in timing and control applications.

  2. Q: What is the operating voltage range of the 74HC123D,653? A: The 74HC123D,653 operates within a voltage range of 2V to 6V.

  3. Q: How many inputs does the 74HC123D,653 have? A: The 74HC123D,653 has two inputs, labeled A and B.

  4. Q: What is the purpose of the retriggerable feature in this IC? A: The retriggerable feature allows the output pulse width to be extended by applying additional trigger pulses before the previous pulse has ended.

  5. Q: Can the 74HC123D,653 be used as a frequency divider? A: Yes, it can be used as a frequency divider by connecting the output to the input through appropriate logic gates.

  6. Q: What is the maximum output current of the 74HC123D,653? A: The maximum output current is typically around 4mA.

  7. Q: How do I calculate the output pulse width? A: The output pulse width can be calculated using the formula: T = 0.7 * (R1 + R2) * C, where R1 and R2 are the external resistors and C is the external capacitor.

  8. Q: Can the 74HC123D,653 operate in both astable and monostable modes? A: Yes, it can operate in both astable (free-running) and monostable (one-shot) modes.

  9. Q: What is the typical propagation delay of the 74HC123D,653? A: The typical propagation delay is around 20 ns.

  10. Q: Are there any specific precautions to consider when using the 74HC123D,653? A: It is important to ensure that the supply voltage does not exceed the specified range, and to avoid exceeding the maximum ratings for input current and power dissipation. Additionally, proper decoupling capacitors should be used to minimize noise and voltage spikes.

Please note that these answers are general and may vary depending on the specific application and datasheet of the IC.