SN74LV123ATPWRG4Q1

Product Overview

• Category: Integrated Circuit
• Use: Multivibrator and Monostable Multivibrator
• Characteristics: Low-voltage, dual retriggerable monostable multivibrator
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Reliable timing solution for various applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Trigger Schmitt Inputs for Noise Suppression
• Retriggerable/Resettable Capability
• Wide Pulse Width Range: 30 ns to 100% Duty Cycle
• Low Power Consumption: 10µA Maximum ICC
• High Noise Immunity: 0.45 VCC Typ
• Pin-Compatible with Other Standard Logic Families

Detailed Pin Configuration

The SN74LV123ATPWRG4Q1 has a total of 16 pins. The pin configuration is as follows:

1. CLR (Clear) - Active LOW clear input
2. A (Trigger) - Active HIGH trigger input
3. B (Retrigger) - Active HIGH retrigger input
4. GND (Ground) - Ground reference point
5. RCext (External Resistor/Capacitor) - External resistor/capacitor connection for timing control
6. Q (Output) - Output of the monostable multivibrator
7. VCC (Supply Voltage) - Positive supply voltage
8. NC (No Connection) - No electrical connection

9-16. Same as pins 1-8, but with a "Q" suffix indicating the second monostable multivibrator.

Functional Features

• The SN74LV123ATPWRG4Q1 is a dual retriggerable monostable multivibrator.
• It can be used as a precision timing device in various applications.
• The device offers a wide pulse width range and high noise immunity.
• It has trigger Schmitt inputs for noise suppression.
• The retriggerable/resettable capability allows for flexible operation.
• Low power consumption makes it suitable for battery-powered devices.
• Pin compatibility with other standard logic families provides design flexibility.

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows for versatile use. - Retriggerable capability enables precise timing control. - High noise immunity ensures reliable operation in noisy environments. - Low power consumption extends battery life in portable applications. - Pin compatibility simplifies integration with existing designs.

Disadvantages: - Limited to monostable multivibrator functionality. - Requires external resistor/capacitor for timing control. - Not suitable for applications requiring complex timing functions.

Working Principles

The SN74LV123ATPWRG4Q1 operates based on the principles of a monostable multivibrator. When triggered by a positive pulse at the A input, the output Q transitions from LOW to HIGH for a duration determined by the external resistor and capacitor connected to RCext. The output remains HIGH until the timing period elapses, after which it returns to LOW. The device can be retriggered during the timing period by a positive pulse at the B input, extending the output HIGH time. The CLR input can be used to reset the device and force the output to go LOW immediately.

Detailed Application Field Plans

The SN74LV123ATPWRG4Q1 finds applications in various fields, including:

1. Automotive Electronics: Used for precise timing control in automotive systems, such as engine management, lighting control, and safety systems.
2. Industrial Automation: Enables accurate timing in industrial automation equipment, including programmable logic controllers (PLCs), motor control units, and sensors.
3. Consumer Electronics: Provides reliable timing solutions in consumer electronics devices like digital cameras, audio/video equipment, and home appliances.
4. Telecommunications: Used for timing synchronization in telecommunications infrastructure, including base stations, routers, and network switches.
5. Medical Devices: Enables precise timing in medical devices, such as patient monitoring systems, diagnostic equipment, and implantable devices.

Detailed and Complete Alternative Models

1. SN74LV123A: Similar to SN74LV123ATPWRG4Q1 but without the automotive qualification.
2. CD74HC123E: High-speed CMOS dual retriggerable monostable multivibrator.
3. MC14538B: Dual precision monostable multivibrator with independent trigger and reset inputs.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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