Encyclopedia Entry: 74LVC1G123GF,115

Product Overview

Category

The 74LVC1G123GF,115 belongs to the category of integrated circuits (ICs) and specifically falls under the family of logic gates.

Use

This product is primarily used for digital logic applications, where it functions as a retriggerable monostable multivibrator. It is commonly employed in various electronic devices and systems that require precise timing control.

Characteristics

• Low-voltage CMOS technology
• Single Schmitt-trigger input
• Wide operating voltage range
• High noise immunity
• Fast propagation delay
• Small package size

Package and Quantity

The 74LVC1G123GF,115 is available in a small SOT353 package. It is typically sold in reels or tubes, with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 4.3 ns (typical)
• Trigger Pulse Width: 30 ns (minimum)

Detailed Pin Configuration

The 74LVC1G123GF,115 features a total of five pins:

1. GND (Ground): Connected to the ground reference potential.
2. VCC (Supply Voltage): Connected to the positive supply voltage.
3. nR (Reset Input): Active-low reset input pin.
4. nC (Control Input): Control input pin for triggering the multivibrator.
5. Q (Output): Output pin that provides the delayed pulse signal.

Functional Features

The key functional features of the 74LVC1G123GF,115 include:

• Retriggerable monostable operation
• Schmitt-trigger input for noise immunity
• Adjustable pulse width through external resistor and capacitor
• Output pulse duration independent of trigger pulse duration

Advantages and Disadvantages

Advantages

• Low-voltage operation enables compatibility with a wide range of systems.
• Small package size allows for space-efficient designs.
• High noise immunity ensures reliable operation in noisy environments.
• Fast propagation delay facilitates high-speed applications.

Disadvantages

• Limited output current capability may restrict its use in certain applications requiring higher drive strength.
• Single-channel configuration limits its ability to handle multiple inputs simultaneously.

Working Principles

The 74LVC1G123GF,115 operates based on the principles of retriggerable monostable multivibrator. When triggered by a low-level control input (nC), the output (Q) generates a pulse with a duration determined by an external resistor and capacitor. The output pulse width can be adjusted by varying the values of these external components.

Detailed Application Field Plans

The 74LVC1G123GF,115 finds extensive application in various electronic systems, including but not limited to:

1. Timing circuits in microcontrollers and digital signal processors.
2. Pulse generation for communication protocols like UART, SPI, and I2C.
3. Delayed triggering in automotive electronics for safety features.
4. Precision timing control in industrial automation systems.
5. Signal conditioning and synchronization in audio and video equipment.

Detailed Alternative Models

For users seeking alternative options, the following models provide similar functionality to the 74LVC1G123GF,115:

1. SN74LVC1G123DBVR: Manufactured by Texas Instruments, this device offers comparable specifications and pin configuration.
2. MC74VHC1G123DFT1G: Produced by ON Semiconductor, it provides similar features and performance characteristics.
3. CD74HCT123M96: Manufactured by Texas Instruments, this model is a viable alternative with compatible functionality.

In conclusion, the 74LVC1G123GF,115 is a versatile logic gate IC that serves as a retriggerable monostable multivibrator. Its low-voltage operation, small package size, and high noise immunity make it suitable for various digital logic applications. With its adjustable pulse width and fast propagation delay, it offers precise timing control in diverse electronic systems across different industries.