SN74LVC126ADRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: Low-voltage, high-speed, quad bus buffer with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Provides buffering and driving capabilities for digital signals in electronic circuits
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

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 Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 400MHz
• Number of Inputs/Outputs: 4

Detailed Pin Configuration

The SN74LVC126ADRE4 has a total of 14 pins. The pin configuration is as follows:

1. OE (Output Enable) - Active low output enable input
2. Y1 - Output 1
3. A1 - Input 1
4. A2 - Input 2
5. GND (Ground) - Ground reference
6. A3 - Input 3
7. A4 - Input 4
8. Y4 - Output 4
9. VCC - Positive power supply
10. Y3 - Output 3
11. A3 - Input 3
12. A2 - Input 2
13. Y2 - Output 2
14. NC (No Connection) - Not connected pin

Functional Features

• Quad 3-state non-inverting buffers
• Supports bidirectional data flow
• Allows multiple devices to be connected to a common bus
• Provides high-speed signal buffering and driving capabilities
• Low-voltage operation for compatibility with various digital systems

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - 3-state outputs enable easy bus sharing - Low-voltage operation increases compatibility with modern digital systems

Disadvantages: - Limited number of inputs/outputs (4) - Not suitable for applications requiring a large number of buffered signals

Working Principles

The SN74LVC126ADRE4 is a quad bus buffer that operates by receiving digital input signals on its four input pins (A1, A2, A3, A4). These input signals are then buffered and amplified to provide corresponding output signals on the four output pins (Y1, Y2, Y3, Y4). The OE (Output Enable) pin controls the output state, allowing the device to be enabled or disabled.

When the OE pin is low (active), the outputs are enabled and reflect the input signals. When the OE pin is high (inactive), the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The SN74LVC126ADRE4 is commonly used in various electronic applications, including:

1. Microcontrollers: Provides buffering and driving capabilities for digital signals between microcontrollers and other peripheral devices.
2. Communication Systems: Used to interface between different communication modules, such as UART, SPI, or I2C, ensuring proper signal levels and driving capability.
3. Data Acquisition Systems: Enables reliable signal buffering and driving in data acquisition systems, ensuring accurate data transfer between sensors and processing units.
4. Industrial Automation: Used in control systems to buffer and drive digital signals between different components, such as PLCs (Programmable Logic Controllers) and actuators.

Detailed and Complete Alternative Models

1. SN74LVC126A: Similar to SN74LVC126ADRE4, but available in different package options (e.g., TSSOP, PDIP).
2. SN74LVCH126A: Low-voltage quad bus buffer with 3-state outputs, offering improved speed and performance compared to SN74LVC126ADRE4.
3. SN74LVC4245A: Octal bus transceiver with 3-state outputs, suitable for applications requiring a larger number of buffered signals.

These alternative models provide similar functionality to the SN74LVC126ADRE4 but may have variations in package type, voltage range, or additional features.

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