Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| NumberofDrivers/Receivers | 1/1 |
| Duplex | Half |
| ReceiverHysteresis | 50 mV |
| DataRate | 2.5Mbps |
| Voltage-Supply | 4.75V ~ 5.25V |
| OperatingTemperature | 0°C ~ 70°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Tổng quan
Description
The MAX485CSA+T is a low-power transceiver designed for RS-485 and RS-422 communication protocols. It is part of Maxim Integrated's MAX485 family, which facilitates half-duplex communication over long distances and in electrically noisy environments. This chip operates on a single 5V supply and features a low-power shutdown mode, reducing current consumption to 1µA.
Key features include:
1. Differential Signaling: Enhances noise immunity and allows data transmission over longer distances.
2. Low Power Consumption: Draws 300µA in active mode, which is suitable for battery-powered and energy-efficient applications.
3. High Data Rate: Supports data rates up to 2.5 Mbps.
4. Wide Common-Mode Range: Can handle voltage differences between nodes, improving reliability in challenging environments.
5. Short-Circuit Protection: Protects against wiring faults by limiting current.
6. Thermal Shutdown: Prevents damage due to overheating.
The package size is compact, making it suitable for space-constrained applications, and it is widely used in industrial automation, building automation, and other applications requiring reliable serial communication.
Key features include:
1. Differential Signaling: Enhances noise immunity and allows data transmission over longer distances.
2. Low Power Consumption: Draws 300µA in active mode, which is suitable for battery-powered and energy-efficient applications.
3. High Data Rate: Supports data rates up to 2.5 Mbps.
4. Wide Common-Mode Range: Can handle voltage differences between nodes, improving reliability in challenging environments.
5. Short-Circuit Protection: Protects against wiring faults by limiting current.
6. Thermal Shutdown: Prevents damage due to overheating.
The package size is compact, making it suitable for space-constrained applications, and it is widely used in industrial automation, building automation, and other applications requiring reliable serial communication.
Equivalent
The MAX485CSA+T is an RS-485/RS-422 transceiver. Equivalent products include:
1. SN75176 from Texas Instruments
2. ADM485 from Analog Devices
3. LTC485 from Analog Devices (previously Linear Technology)
4. SP485 from MaxLinear (formerly Sipex)
5. DS75176 from Texas Instruments
6. ST485 from STMicroelectronics
These alternatives have similar functionalities, but always check the datasheets to ensure compatibility with your specific application.
1. SN75176 from Texas Instruments
2. ADM485 from Analog Devices
3. LTC485 from Analog Devices (previously Linear Technology)
4. SP485 from MaxLinear (formerly Sipex)
5. DS75176 from Texas Instruments
6. ST485 from STMicroelectronics
These alternatives have similar functionalities, but always check the datasheets to ensure compatibility with your specific application.
Features
The MAX485CSA+T is a low-power transceiver for RS-485 and RS-422 communication protocols. Key features include:
1. Low Power Consumption: It operates on a single 5V supply with a low current draw of just 300 µA, making it suitable for battery-powered and energy-efficient applications.
2. Wide Data Rate: Supports data transmission rates of up to 2.5 Mbps.
3. Slew-Rate Limiting: Features slew-rate limiting for reduced EMI interference and enables error-free data transmission over longer distances.
4. Short-Circuit Protection: Provides short-circuit protection against bus contention situations, enhancing reliability.
5. ESD Protection: Built-in ESD protection for robust performance in harsh environments.
6. Fail-Safe Operation: Ensures a known output state when input signals are undetermined, improving reliability.
7. Extended Temperature Range: Operates efficiently over a wide temperature range from -40°C to +85°C.
8. Half-Duplex Communication: Designed for half-duplex communication, allowing for two-way data exchange over a single pair of wires.
These features make the MAX485CSA+T ideal for industrial and commercial applications requiring reliable serial data communication.
1. Low Power Consumption: It operates on a single 5V supply with a low current draw of just 300 µA, making it suitable for battery-powered and energy-efficient applications.
2. Wide Data Rate: Supports data transmission rates of up to 2.5 Mbps.
3. Slew-Rate Limiting: Features slew-rate limiting for reduced EMI interference and enables error-free data transmission over longer distances.
4. Short-Circuit Protection: Provides short-circuit protection against bus contention situations, enhancing reliability.
5. ESD Protection: Built-in ESD protection for robust performance in harsh environments.
6. Fail-Safe Operation: Ensures a known output state when input signals are undetermined, improving reliability.
7. Extended Temperature Range: Operates efficiently over a wide temperature range from -40°C to +85°C.
8. Half-Duplex Communication: Designed for half-duplex communication, allowing for two-way data exchange over a single pair of wires.
These features make the MAX485CSA+T ideal for industrial and commercial applications requiring reliable serial data communication.
Pinout
The MAX485CSA+T is an RS-485/RS-422 transceiver designed for communication over long distances and in noisy environments. It has 8 pins, each with specific functions:
1. RO (Pin 1): Receiver Output - delivers the received data.
2. RE̅ (Pin 2): Receiver Output Enable - active low; enables the receiver output when low.
3. DE (Pin 3): Driver Output Enable - activates the driver outputs when high.
4. DI (Pin 4): Driver Input - accepts the data to be transmitted.
5. GND (Pin 5): Ground - reference ground for the device.
6. A (Pin 6): Non-inverting Driver Output / Non-inverting Receiver Input.
7. B (Pin 7): Inverting Driver Output / Inverting Receiver Input.
8. VCC (Pin 8): Supply Voltage - typically requires a 5V power supply.
The MAX485 device allows for data transmission at rates up to 2.5 Mbps. It is suitable for low power applications and can operate in half-duplex mode, allowing the same pair of wires to be used for both transmission and reception.
1. RO (Pin 1): Receiver Output - delivers the received data.
2. RE̅ (Pin 2): Receiver Output Enable - active low; enables the receiver output when low.
3. DE (Pin 3): Driver Output Enable - activates the driver outputs when high.
4. DI (Pin 4): Driver Input - accepts the data to be transmitted.
5. GND (Pin 5): Ground - reference ground for the device.
6. A (Pin 6): Non-inverting Driver Output / Non-inverting Receiver Input.
7. B (Pin 7): Inverting Driver Output / Inverting Receiver Input.
8. VCC (Pin 8): Supply Voltage - typically requires a 5V power supply.
The MAX485 device allows for data transmission at rates up to 2.5 Mbps. It is suitable for low power applications and can operate in half-duplex mode, allowing the same pair of wires to be used for both transmission and reception.
Manufacturer
The MAX485CSA+T is manufactured by Analog Devices, Inc. This company is a multinational corporation that specializes in the design and manufacturing of a wide range of analog, mixed-signal, and digital signal processing integrated circuits. Analog Devices serves various industries including telecommunications, automotive, consumer electronics, healthcare, and industrial sectors. As a leader in the electronics sector, they provide solutions for signal processing, data conversion, and power management applications. The MAX485CSA+T is a low-power transceiver for RS-485 and RS-422 communications, highlighting Analog Devices' expertise in providing components for data communication systems.
Application
The MAX485CSA+T is a low-power, high-speed RS-485/RS-422 transceiver used in various applications. Key application areas include:
1. Industrial Automation: Facilitates robust and long-distance communication between controllers and field devices.
2. Telecommunications: Supports reliable data transmission over extended distances in telecom infrastructure.
3. Building Automation: Used in HVAC systems, lighting controls, and security systems for efficient communication.
4. Embedded Systems: Provides connectivity for microcontrollers and processors in embedded applications.
5. Networking Equipment: Enhances communication links in routers and switches.
6. Metering Systems: Employed in smart meters for data transmission.
7. Transportation: Used in communication networks within vehicles and between transport systems.
1. Industrial Automation: Facilitates robust and long-distance communication between controllers and field devices.
2. Telecommunications: Supports reliable data transmission over extended distances in telecom infrastructure.
3. Building Automation: Used in HVAC systems, lighting controls, and security systems for efficient communication.
4. Embedded Systems: Provides connectivity for microcontrollers and processors in embedded applications.
5. Networking Equipment: Enhances communication links in routers and switches.
6. Metering Systems: Employed in smart meters for data transmission.
7. Transportation: Used in communication networks within vehicles and between transport systems.
Package
The MAX485CSA+T is a low-power transceiver for RS-485 and RS-422 communication. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is suitable for surface mounting on a printed circuit board.
