SN65LBC176PG4

Product Overview

• Category: Integrated Circuit
• Use: Communication and Networking
• Characteristics: High-speed differential line driver and receiver
• Package: 8-pin DIP (Dual In-Line Package)
• Essence: Transceiver IC for balanced transmission lines
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 3V 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
• Propagation Delay: 50 ns (typical)

Pin Configuration

The SN65LBC176PG4 has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Power Supply --| A B |-- Pin 2: Differential Input/Output A --| Y Z |-- Pin 3: Differential Input/Output B --| /RE DE |-- Pin 4: Receiver Enable/Input Driver Enable --| RO DI |-- Pin 5: Receiver Output/Input Driver Input --| RE DE |-- Pin 6: Receiver Enable/Driver Enable --| VCC GND |-- Pin 7: Power Supply |___________| ```

Functional Features

• High-speed data transmission over balanced lines
• Compatible with RS-485 and RS-422 standards
• Low power consumption
• Wide supply voltage range
• Built-in protection against bus contention and noise
• Receiver output failsafe feature

Advantages and Disadvantages

Advantages: - High-speed data transfer - Wide operating temperature range - Robust protection features - Low power consumption

Disadvantages: - Limited number of channels (only 1) - Requires external components for complete functionality

Working Principles

The SN65LBC176PG4 is designed to transmit and receive high-speed data over balanced transmission lines. It operates based on the RS-485 and RS-422 standards, providing reliable communication in noisy environments. The transceiver uses differential signaling to achieve noise immunity and can operate at data rates up to 20 Mbps.

The device incorporates built-in protection against bus contention and noise, ensuring reliable data transmission. It also features a receiver output failsafe function, which guarantees a known output state when the inputs are open or shorted.

Detailed Application Field Plans

The SN65LBC176PG4 is widely used in various applications that require high-speed communication over long distances. Some common application fields include:

1. Industrial Automation: Used in PLCs (Programmable Logic Controllers), motor control systems, and industrial networking.
2. Building Automation: Enables communication between different building automation devices, such as HVAC systems, lighting controls, and security systems.
3. Telecommunications: Facilitates data transmission in telecommunication networks, including base stations, routers, and switches.
4. Automotive Electronics: Used in automotive systems for communication between ECUs (Electronic Control Units), sensors, and actuators.
5. Instrumentation: Enables high-speed data transfer in test and measurement equipment, data loggers, and scientific instruments.

Detailed and Complete Alternative Models

1. MAX485: Similar functionality and pin configuration, compatible with RS-485 standard.
2. SN75176: Equivalent functionality, available in different package options.
3. LTC2862: Low-power differential transceiver with extended temperature range.
4. ADM2483: Isolated RS-485 transceiver with integrated isolation barrier.

These alternative models provide similar features and can be used as substitutes for the SN65LBC176PG4 in various applications.

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