74LV123D,112

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator
• Characteristics: Dual retriggerable monostable multivibrator with reset
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital logic IC used for timing and pulse generation applications
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• High-Level Input Voltage: 2.0V to VCC + 0.3V
• Low-Level Input Voltage: -0.3V to 0.8V
• High-Level Output Voltage: VCC - 0.3V
• Low-Level Output Voltage: 0.3V
• Maximum Operating Frequency: 125 MHz
• Propagation Delay Time: 6 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LV123D,112 IC has a total of 16 pins. The pin configuration is as follows:

1. CLR (Clear) - Active LOW input for resetting the multivibrator.
2. A (Trigger) - Active HIGH input for triggering the multivibrator.
3. B (Trigger) - Active HIGH input for triggering the multivibrator.
4. GND (Ground) - Ground reference for the IC.
5. Q1 (Output) - Output of the first multivibrator stage.
6. Q2 (Output) - Output of the second multivibrator stage.
7. RCext (External Resistor-Capacitor) - External resistor-capacitor timing components connection.
8. VCC (Supply Voltage) - Positive supply voltage for the IC.
9. NC (No Connection) - No internal connection.
10. NC (No Connection) - No internal connection.
11. NC (No Connection) - No internal connection.
12. NC (No Connection) - No internal connection.
13. NC (No Connection) - No internal connection.
14. NC (No Connection) - No internal connection.
15. NC (No Connection) - No internal connection.
16. NC (No Connection) - No internal connection.

Functional Features

• Dual retriggerable monostable multivibrator with reset functionality.
• Can be triggered by either positive or negative edge transitions.
• Provides precise timing control for generating accurate pulses.
• Offers a wide operating voltage range, making it suitable for various applications.
• Low power consumption and high noise immunity.

Advantages and Disadvantages

Advantages: - Dual multivibrator in a single IC package saves board space. - Retriggerable feature allows for extending the output pulse width. - Wide supply voltage range enables compatibility with different systems. - High-speed operation makes it suitable for time-critical applications.

Disadvantages: - Limited number of available pins for external connections. - Requires additional external components for precise timing control. - Not suitable for applications requiring complex waveform generation.

Working Principles

The 74LV123D,112 is a dual retriggerable monostable multivibrator with reset functionality. It operates based on the principles of digital logic circuits. When triggered by a positive or negative edge transition at the A or B inputs, the multivibrator generates an output pulse with a duration determined by the external resistor-capacitor (RC) timing components connected to the RCext pin. The output pulse width can be extended by retriggering the multivibrator before the pulse ends. The CLR input allows for resetting the multivibrator and terminating the output pulse prematurely.

Detailed Application Field Plans

The 74LV123D,112 IC finds applications in various fields, including: 1. Timing and pulse generation circuits 2. Frequency division and counting circuits 3. Delay circuits 4. Precision timing control systems 5. Industrial automation and control systems 6. Communication equipment 7. Test and measurement instruments

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the 74LV123D,112 IC are: - CD74HC123E - SN74LS123N - MC74VHC123DT - HEF4528BP - 74HCT123D

These alternative models offer similar functionality and can be used interchangeably depending on specific requirements.

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