SN75176BDG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Transceiver
• Characteristics: High-speed, low-power, differential bus transceiver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Converts between TTL/CMOS logic levels and differential voltage signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 10 Mbps
• Number of Channels: 1
• Input Thresholds: ±200mV
• Output Voltage Swing: ±3.5V
• Propagation Delay: 60ns (typical)

Detailed Pin Configuration

The SN75176BDG4 has a total of 8 pins:

1. GND: Ground reference for all logic and input/output signals.
2. RO: Receiver output. Outputs the received data signal.
3. RE: Receiver enable. Enables or disables the receiver.
4. DE: Driver enable. Enables or disables the driver.
5. DI: Driver input. Inputs the data signal to be transmitted.
6. D: Differential driver output. Outputs the transmitted data signal.
7. VCC: Positive power supply voltage.
8. B: Differential receiver input. Inputs the received data signal.

Functional Features

• Compatible with TIA/EIA-485-A standard
• Allows long-distance data transmission over twisted-pair cables
• Supports multidrop and multipoint bus configurations
• Provides fail-safe circuitry to ensure a known output state when inputs are open or shorted
• Low standby power consumption

Advantages and Disadvantages

Advantages: - High-speed data transmission - Wide operating temperature range - Robust fail-safe circuitry - Low power consumption

Disadvantages: - Limited to single-channel communication - Requires external components for bus termination

Working Principles

The SN75176BDG4 is a differential bus transceiver that converts TTL/CMOS logic levels to differential voltage signals suitable for long-distance data transmission. It operates based on the TIA/EIA-485-A standard, allowing reliable communication over twisted-pair cables.

The driver section of the IC receives TTL/CMOS logic level input data and converts it into a differential output signal. The receiver section receives the differential input signal and converts it back into TTL/CMOS logic levels.

The IC incorporates fail-safe circuitry, ensuring that the outputs are in a known state when the inputs are open or shorted. This feature enhances the reliability of the communication system.

Detailed Application Field Plans

The SN75176BDG4 is widely used in various applications, including:

1. Industrial Automation: Used for communication between PLCs (Programmable Logic Controllers), sensors, and actuators in industrial control systems.
2. Building Automation: Enables communication between different building automation devices, such as HVAC (Heating, Ventilation, and Air Conditioning) systems, lighting controls, and security systems.
3. Automotive Electronics: Facilitates communication between various automotive modules, such as engine control units, body control modules, and infotainment systems.
4. Telecommunications: Used in telecommunication equipment for long-distance data transmission between network nodes.
5. Medical Devices: Enables communication between medical devices, such as patient monitors, infusion pumps, and diagnostic equipment.

Detailed and Complete Alternative Models

Some alternative models to the SN75176BDG4 include:

1. MAX485: Similar functionality, compatible with RS-485 standard.
2. LTC485: Low-power differential transceiver with extended temperature range.
3. ADM485: Integrated RS-485 transceiver with low power consumption.
4. SP3485: Half-duplex RS-485 transceiver with enhanced ESD protection.

These alternative models offer similar features and can be used as replacements depending on specific application requirements.

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