74LV123N,112

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator
• Characteristics: Dual retriggerable monostable multivibrator with reset
• Package: DIP-16 (Dual In-line Package with 16 pins)
• Essence: The 74LV123N,112 is a versatile IC used for generating precise time delays or pulses in electronic circuits.
• Packaging/Quantity: Available in reels or tubes, typically sold in quantities of 1000 units.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Current: -4mA
• Low-Level Output Current: 4mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74LV123N,112 has 16 pins arranged as follows:

__ __ 1 |1 \__/ 16| VCC 2 |2 15| Q1 3 |3 14| Q2 4 |4 13| nRD 5 |5 12| nCLR 6 |6 11| nC 7 |7 10| REXT 8 |8 9| GND ----------

Functional Features

• Dual Monostable Multivibrator: The 74LV123N,112 consists of two independent monostable multivibrators that can be triggered separately.
• Retriggerable Operation: The IC can be retriggered during the output pulse, extending the output pulse width.
• Reset Capability: The multivibrators can be reset using the nRD (Reset) input.
• Wide Operating Voltage Range: The IC operates reliably within a wide voltage range of 1.65V to 5.5V.

Advantages and Disadvantages

Advantages: - Precise Timing: The IC provides accurate time delays or pulses, making it suitable for applications requiring precise timing control. - Retriggerable Operation: The retriggerable feature allows flexibility in generating variable pulse widths. - Compact Package: The DIP-16 package offers a compact form factor, making it easy to integrate into various electronic designs.

Disadvantages: - Limited Output Current: The IC has a limited output current capability, which may restrict its use in high-power applications. - Single Functionality: The 74LV123N,112 is designed specifically as a monostable multivibrator and may not be suitable for other complex circuit requirements.

Working Principles

The 74LV123N,112 operates based on the principles of monostable multivibrators. When triggered, the output of the respective multivibrator goes high for a specific duration determined by external components. The output remains high until the specified time elapses or until a retriggering signal is received. The IC can be reset using the nRD input, which forces the output to go low.

Detailed Application Field Plans

The 74LV123N,112 finds applications in various fields, including:

1. Timing Circuits: It is commonly used in applications that require precise timing control, such as clock generation, frequency division, and synchronization circuits.
2. Pulse Generation: The IC is utilized to generate accurate pulses for applications like waveform shaping, triggering other devices, or controlling sequential operations.
3. Delay Circuits: It is employed in delay circuits where a specific time delay is required before activating subsequent stages or components.
4. Control Systems: The IC can be used in control systems to generate timed events, synchronize operations, or trigger specific actions.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74LV123N,112 include:

1. CD74HC123E: Dual retriggerable monostable multivibrator with reset, operating voltage range of 2V to 6V.
2. MC14538B: Dual precision monostable multivibrator with reset, operating voltage range of 3V to 18V.
3. SN74LS123N: Dual retriggerable monostable multivibrator with clear, operating voltage range of 4.75V to 5.25V.

These alternatives provide options with different voltage ranges and additional features to suit specific application requirements.

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