SN65LBC173ADG4

Product Overview

• Category: Integrated Circuit
• Use: Communication and Networking
• Characteristics: Differential Line Driver and Receiver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transceiver IC for balanced transmission lines
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 20 Mbps
• Number of Channels: 1
• Input Threshold Voltage: ±200 mV
• Output Voltage Swing: ±2 V
• ESD Protection: ±15 kV (Human Body Model)

Pin Configuration

The SN65LBC173ADG4 has a total of 8 pins arranged as follows:

```

---

| | --| U1 |-- |___________|

Pin Configuration: 1. GND 2. A 3. B 4. Y 5. Z 6. VCC 7. DE 8. RE ```

Functional Features

• Differential driver and receiver for balanced transmission lines
• Supports half-duplex communication
• Wide supply voltage range for flexibility
• High data rate capability up to 20 Mbps
• Built-in ESD protection for enhanced reliability
• Low power consumption for energy efficiency

Advantages and Disadvantages

Advantages: - Provides reliable communication over long distances - Suitable for noisy environments due to differential signaling - Easy integration into existing systems - Robust ESD protection ensures device longevity

Disadvantages: - Limited to single-channel operation - Requires external components for complete system implementation - May not be suitable for high-speed applications above 20 Mbps

Working Principles

The SN65LBC173ADG4 is designed to transmit and receive data over balanced transmission lines. It utilizes differential signaling, where the voltage difference between two lines represents the transmitted information. This method provides noise immunity and allows for reliable communication even in harsh environments.

The driver section of the IC converts the logic-level input signals (A and B) into differential output signals (Y and Z). These signals are then transmitted through the balanced transmission lines. On the receiving end, the receiver section converts the differential input signals back into logic-level outputs.

The DE (Driver Enable) and RE (Receiver Enable) pins control the direction of data flow. When DE is high and RE is low, the IC operates in transmit mode. Conversely, when DE is low and RE is high, it operates in receive mode. This half-duplex operation allows bidirectional communication using a single pair of transmission lines.

Detailed Application Field Plans

The SN65LBC173ADG4 is commonly used in various applications, including:

1. Industrial Automation: Enables reliable communication between sensors, actuators, and control systems in industrial environments.
2. Automotive Electronics: Facilitates data transmission in automotive networks, such as CAN (Controller Area Network) buses.
3. Telecommunications: Supports long-distance communication in telecommunication systems, ensuring signal integrity.
4. Building Automation: Provides a robust communication link between different building automation devices, such as HVAC systems and lighting controls.
5. Security Systems: Allows secure transmission of data in security systems, including access control and surveillance systems.

Alternative Models

• MAX485: Similar differential transceiver with higher data rate capability (up to 2.5 Mbps).
• SN75176: Differential bus transceiver with lower power consumption and wider supply voltage range.
• LTC2874: High-speed differential transceiver with advanced features like hot-swapping and fail-safe biasing.

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific application requirements.

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