Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tube |
| ProductStatus | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| NumberofDrivers/Receivers | 1/1 |
| Duplex | Full |
| ReceiverHysteresis | 50 mV |
| DataRate | 30Mbps |
| Voltage-Supply | 4.75V ~ 5.25V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Tổng quan
Description
The SN65LBC179AD is a differential line transceiver integrated circuit designed for balanced communication in multipoint bus transmission networks. Manufactured by Texas Instruments, it is part of the SN65LBC series and is used in applications requiring high-speed data exchange, typically up to 10 Mbps. The device features a differential driver and a differential receiver, which help mitigate noise and improve signal integrity over longer distances. It operates across a wide voltage range and is capable of driving up to 32 unit loads, making it suitable for industrial and communication systems.
Key features of the SN65LBC179AD include thermal shutdown protection, short-circuit protection, and a low-power standby mode. The transceiver complies with the RS-485 and RS-422 communication standards, ensuring compatibility with various networking protocols. It also offers fail-safe operation for open-circuit, short-circuit, and under-voltage conditions, enhancing reliability in harsh environments. The device is typically available in an 8-pin SOIC package, making it easy to integrate into existing designs.
Key features of the SN65LBC179AD include thermal shutdown protection, short-circuit protection, and a low-power standby mode. The transceiver complies with the RS-485 and RS-422 communication standards, ensuring compatibility with various networking protocols. It also offers fail-safe operation for open-circuit, short-circuit, and under-voltage conditions, enhancing reliability in harsh environments. The device is typically available in an 8-pin SOIC package, making it easy to integrate into existing designs.
Equivalent
The SN65LBC179AD is a RS-485 transceiver. Equivalent products include the MAX485 from Maxim Integrated, the ADM485 from Analog Devices, the DS485 from Dallas Semiconductor, and the LTC485 from Linear Technology. These alternatives typically offer similar functionalities for RS-485 communications, with slight variations in electrical specifications and features. Always check the datasheets to ensure compatibility with your specific application requirements.
Features
The SN65LBC179AD is a differential line driver designed for data transmission over twisted-pair cable. Key features include:
1. Data Rate: Supports high-speed applications with data rates up to 30 Mbps.
2. Supply Voltage: Operates with a single 5V power supply.
3. Differential Driver: Ensures robust data transmission, minimizing electromagnetic interference.
4. Wide Common-Mode Range: Enhances signal integrity over longer distances.
5. Thermal Shutdown Protection: Prevents device damage from overheating.
6. Short-Circuit Protection: Guards against electrical faults.
7. Industrial Temperature Range: Operates reliably from -40°C to 85°C, suitable for demanding environments.
8. Low Power Consumption: Optimized for energy-efficient performance.
9. Compatible with RS-485 and RS-422 Standards: Ensures interoperability in various communication systems.
10. Small Footprint: Available in a space-saving SOIC package for compact designs.
These features make the SN65LBC179AD ideal for industrial and commercial applications requiring reliable, high-speed data communication.
1. Data Rate: Supports high-speed applications with data rates up to 30 Mbps.
2. Supply Voltage: Operates with a single 5V power supply.
3. Differential Driver: Ensures robust data transmission, minimizing electromagnetic interference.
4. Wide Common-Mode Range: Enhances signal integrity over longer distances.
5. Thermal Shutdown Protection: Prevents device damage from overheating.
6. Short-Circuit Protection: Guards against electrical faults.
7. Industrial Temperature Range: Operates reliably from -40°C to 85°C, suitable for demanding environments.
8. Low Power Consumption: Optimized for energy-efficient performance.
9. Compatible with RS-485 and RS-422 Standards: Ensures interoperability in various communication systems.
10. Small Footprint: Available in a space-saving SOIC package for compact designs.
These features make the SN65LBC179AD ideal for industrial and commercial applications requiring reliable, high-speed data communication.
Pinout
The SN65LBC179AD is a differential line transceiver designed for RS-485 and RS-422 communication applications. It is manufactured by Texas Instruments. The device typically comes in an 8-pin package.
The pin functions are generally as follows:
1. RO (Receiver Output) - Outputs the received data signal.
2. RE (Receiver Enable) - Controls the receiver, active low.
3. DE (Driver Enable) - Controls the driver, active high.
4. DI (Driver Input) - Accepts the data signal to be transmitted.
5. GND - Ground connection.
6. A (Non-inverting Receiver Input/Driver Output) - Connects to the bus line, part of the differential pair.
7. B (Inverting Receiver Input/Driver Output) - Connects to the bus line, part of the differential pair.
8. VCC - Power supply input.
The SN65LBC179AD is designed to operate over a wide range of voltages and is suitable for industrial applications. It supports half-duplex communication, meaning the device can either send or receive signals at a time but not simultaneously.
The pin functions are generally as follows:
1. RO (Receiver Output) - Outputs the received data signal.
2. RE (Receiver Enable) - Controls the receiver, active low.
3. DE (Driver Enable) - Controls the driver, active high.
4. DI (Driver Input) - Accepts the data signal to be transmitted.
5. GND - Ground connection.
6. A (Non-inverting Receiver Input/Driver Output) - Connects to the bus line, part of the differential pair.
7. B (Inverting Receiver Input/Driver Output) - Connects to the bus line, part of the differential pair.
8. VCC - Power supply input.
The SN65LBC179AD is designed to operate over a wide range of voltages and is suitable for industrial applications. It supports half-duplex communication, meaning the device can either send or receive signals at a time but not simultaneously.
Manufacturer
The SN65LBC179AD is manufactured by Texas Instruments. Texas Instruments, commonly referred to as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. The company is one of the largest semiconductor companies in the world and specializes in the development of analog chips and embedded processors, which are crucial components in a wide range of electronic devices. Texas Instruments is known for its innovation in the electronics industry and its products are used in applications across various sectors such as consumer electronics, automotive, industrial equipment, and communications.
Application
The SN65LBC179AD is a differential driver IC primarily used in communication systems. Its application areas include:
1. Industrial Automation: Facilitates robust data transmission in noisy industrial environments.
2. Building Automation: Used in systems like HVAC for reliable signaling.
3. Telecommunications: Supports data exchange in network infrastructure.
4. Automotive Networks: Enables communication over CAN or LIN networks.
5. Instrumentation: Used in sensors and data acquisition systems for precise data communication.
6. Security Systems: Ensures reliable transmission in alarm systems and surveillance networks.
Its high-signal integrity and noise immunity make it suitable for long-distance and high-speed data communications.
1. Industrial Automation: Facilitates robust data transmission in noisy industrial environments.
2. Building Automation: Used in systems like HVAC for reliable signaling.
3. Telecommunications: Supports data exchange in network infrastructure.
4. Automotive Networks: Enables communication over CAN or LIN networks.
5. Instrumentation: Used in sensors and data acquisition systems for precise data communication.
6. Security Systems: Ensures reliable transmission in alarm systems and surveillance networks.
Its high-signal integrity and noise immunity make it suitable for long-distance and high-speed data communications.
Package
The SN65LBC179AD is typically available in an SOIC (Small Outline Integrated Circuit) package type. This package is commonly used for surface-mount applications and provides the benefits of reduced space on the circuit board and ease of automated assembly.
