SN74LV123ADRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator
• Characteristics: Dual retriggerable monostable multivibrator
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: High-performance, low-power consumption IC
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 18 ns
• Trigger Pulse Width Range: 30 ns to 1000 ns
• Trigger Input Current: ±1 μA
• Output Drive Capability: ±24 mA

Detailed Pin Configuration

The SN74LV123ADRE4 has a total of 16 pins, which are assigned as follows:

1. CLR (Clear) - Active LOW clear input
2. A (Trigger) - Trigger input
3. B (Retrigger) - Retrigger input
4. RCext (External Resistor-Capacitor) - External resistor-capacitor timing components connection
5. VCC (Positive Power Supply) - Positive power supply terminal
6. Q (Output) - Output terminal
7. GND (Ground) - Ground terminal
8. Qn (Complementary Output) - Complementary output terminal
9. NC (No Connection) - No connection
10. NC (No Connection) - No connection
11. NC (No Connection) - No connection
12. NC (No Connection) - No connection
13. NC (No Connection) - No connection
14. NC (No Connection) - No connection
15. NC (No Connection) - No connection
16. NC (No Connection) - No connection

Functional Features

• Dual retriggerable monostable multivibrator
• Wide supply voltage range allows for versatile applications
• Low power consumption for energy-efficient operation
• High-speed operation with low propagation delay time
• Clear input for resetting the multivibrator
• Retrigger input for extending the output pulse width
• Complementary output provides inverted output signal

Advantages and Disadvantages

Advantages: - Dual monostable multivibrator in a single IC package saves board space - Wide supply voltage range enables compatibility with various systems - Low power consumption prolongs battery life in portable devices - High-speed operation ensures accurate timing control

Disadvantages: - Limited output drive capability may require additional buffering for certain applications - Noisy environments may affect the stability of the multivibrator

Working Principles

The SN74LV123ADRE4 is a dual retriggerable monostable multivibrator. It generates a single output pulse of a specific width when triggered by an input signal. The pulse width can be extended by applying retrigger pulses to the retrigger input. The clear input resets the multivibrator, terminating the output pulse.

Detailed Application Field Plans

The SN74LV123ADRE4 finds applications in various fields, including:

1. Timing circuits: Used to generate precise time delays in digital systems.
2. Pulse shaping: Converts irregular input signals into well-defined output pulses.
3. Frequency division: Utilized in frequency dividers to divide input frequencies.
4. Data synchronization: Ensures proper synchronization between different data signals.
5. Control systems: Provides timing control in automation and industrial control systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74LV123ADRE4 include:

1. CD74HC123E - High-speed CMOS dual retriggerable monostable multivibrator
2. MC14538B - Dual precision monostable multivibrator with complementary outputs
3. HEF4538BP - Dual retriggerable/resettable monostable multivibrator

These alternative models can be considered based on specific requirements and availability.

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