Encyclopedia Entry: 74LVC126AD,118

Product Overview

Category

The 74LVC126AD,118 belongs to the category of integrated circuits (ICs) and specifically falls under the family of logic gates.

Use

This product is commonly used in digital electronics for signal buffering and level shifting applications. It acts as a quad buffer/line driver with 3-state outputs.

Characteristics

• Quad buffer/line driver
• 3-state outputs
• Low voltage CMOS technology
• High-speed operation
• Wide operating voltage range
• Schmitt-trigger action on all inputs

Package

The 74LVC126AD,118 is available in a small outline package (SOIC) with 14 pins. This package offers compactness and ease of integration into electronic circuits.

Essence

The essence of the 74LVC126AD,118 lies in its ability to provide buffering and level shifting capabilities, ensuring reliable signal transmission between different components of a digital circuit.

Packaging/Quantity

This product is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply voltage range: 1.65V to 5.5V
• Input voltage range: 0V to VCC
• Output voltage range: 0V to VCC
• Maximum input current: ±10mA
• Maximum output current: ±32mA
• Operating temperature range: -40°C to +125°C

Detailed Pin Configuration

The 74LVC126AD,118 has a total of 14 pins, each serving a specific function:

1. 1A - Input 1 for buffer A
2. 1Y - Output 1 for buffer A
3. GND - Ground reference
4. 2Y - Output 2 for buffer B
5. 2A - Input 2 for buffer B
6. 3A - Input 3 for buffer C
7. 3Y - Output 3 for buffer C
8. VCC - Positive supply voltage
9. 4A - Input 4 for buffer D
10. 4Y - Output 4 for buffer D
11. OE - Output enable input (active low)
12. NC - No connection
13. GND - Ground reference
14. VCC - Positive supply voltage

Functional Features

The 74LVC126AD,118 offers the following functional features:

• Quad buffering: It can buffer up to four independent signals simultaneously.
• Line driving: It provides a strong output drive capability to ensure signal integrity over long distances or when driving multiple loads.
• 3-state outputs: The outputs can be put in a high-impedance state, allowing multiple devices to share a common bus without interference.

Advantages and Disadvantages

Advantages

• Low voltage operation allows compatibility with a wide range of digital systems.
• High-speed operation enables efficient signal processing.
• Schmitt-trigger action on all inputs ensures noise immunity and reliable operation.
• Compact package facilitates integration into space-constrained designs.

Disadvantages

• Limited output current may restrict its use in applications requiring higher drive capabilities.
• Lack of built-in protection features may require additional circuitry for robustness in harsh environments.

Working Principles

The 74LVC126AD,118 operates based on complementary metal-oxide-semiconductor (CMOS) technology. It utilizes a combination of transistors and logic gates to buffer and drive digital signals. The inputs are processed and amplified, while the outputs can be enabled or disabled using the output enable (OE) pin.

Detailed Application Field Plans

The 74LVC126AD,118 finds applications in various digital systems, including but not limited to:

1. Microcontrollers and microprocessors
2. Communication systems
3. Data acquisition systems
4. Industrial automation
5. Consumer electronics

In these applications, it can be used for level shifting, signal buffering, bus driving, and interfacing between different voltage domains.

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the 74LVC126AD,118. Some notable alternatives include:

1. SN74LVC126A: This Texas Instruments IC offers quad buffer/line driver functionality with 3-state outputs.
2. MC74VHC126: Manufactured by ON Semiconductor, this IC provides similar features and performance in a different package.
3. CD74HCT126E: This IC from Texas Instruments is compatible with higher voltage levels while offering comparable functionality.

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

---

Word count: 570 words