規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| NumberofDrivers/Receivers | 1/1 |
| Duplex | Half |
| ReceiverHysteresis | 50 mV |
| DataRate | 12Mbps |
| Voltage-Supply | 3V ~ 3.6V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
The MAX3485EESA+T is a low-power, high-speed transceiver designed for RS-485 and RS-422 communication systems, developed by Maxim Integrated. It operates at data rates up to 10 Mbps, making it suitable for high-speed data transmission applications. The device features a wide supply voltage range from 3.0V to 3.6V and a low quiescent current, enhancing energy efficiency. It is equipped with fail-safe circuitry that ensures a known output state when the bus is idle, open, or shorted.
The transceiver has a -7V to +12V common-mode input voltage range, ensuring robust performance in noisy environments. It is capable of driving up to 32 unit loads, allowing for up to 32 transceivers on the bus. The MAX3485EESA+T also offers thermal shutdown for protection against excessive heat, and short-circuit protection on the outputs. Its small, 8-pin SOIC package makes it easy to integrate into compact designs. The "EESA+T" suffix indicates the specific package and tape-and-reel packaging format, which is convenient for automated assembly processes.
The transceiver has a -7V to +12V common-mode input voltage range, ensuring robust performance in noisy environments. It is capable of driving up to 32 unit loads, allowing for up to 32 transceivers on the bus. The MAX3485EESA+T also offers thermal shutdown for protection against excessive heat, and short-circuit protection on the outputs. Its small, 8-pin SOIC package makes it easy to integrate into compact designs. The "EESA+T" suffix indicates the specific package and tape-and-reel packaging format, which is convenient for automated assembly processes.
Equivalent
The MAX3485EESA+T is a low-power, RS-485/RS-422 transceiver. Equivalent products include:
1. Texas Instruments SN75176A - A differential bus transceiver.
2. Analog Devices ADM485 - A half-duplex, low power transceiver.
3. ON Semiconductor AM26C31 - A high-speed differential line driver and receiver.
4. Microchip Technology MCP2561/2 - A CAN transceiver with similar features.
5. NXP PCA82C250 - A CAN controller interface, used in RS-485 networks.
Check specifications to ensure compatibility.
1. Texas Instruments SN75176A - A differential bus transceiver.
2. Analog Devices ADM485 - A half-duplex, low power transceiver.
3. ON Semiconductor AM26C31 - A high-speed differential line driver and receiver.
4. Microchip Technology MCP2561/2 - A CAN transceiver with similar features.
5. NXP PCA82C250 - A CAN controller interface, used in RS-485 networks.
Check specifications to ensure compatibility.
Features
The MAX3485EESA+T is a high-speed RS-485/RS-422 transceiver designed for reliable communication over long distances. Key features include:
1. High Data Rates: Supports data rates up to 10 Mbps, making it suitable for fast data transmission applications.
2. Low Power Consumption: Features low power operations with a supply current of 2.3 mA, and a shutdown mode consuming only 10 µA.
3. Wide Operating Voltage: Operates with a supply voltage ranging from 3.0V to 3.6V.
4. Enhanced ESD Protection: Provides robust electrostatic discharge protection exceeding ±15kV HBM (human body model).
5. Fail-Safe Receiver: Includes fail-safe circuitry that ensures a known output state when the input is open, shorted, or terminated but not driven.
6. Extended Temperature Range: Functions effectively over a temperature range of -40°C to +85°C.
7. True RS-485/RS-422 Compatibility: Fully compatible with standard RS-485 and RS-422 communication protocols.
8. Compact Package: Available in an 8-pin SOIC package for space-constrained applications.
These features make the MAX3485EESA+T ideal for industrial automation, building automation, and other applications requiring robust serial communication.
1. High Data Rates: Supports data rates up to 10 Mbps, making it suitable for fast data transmission applications.
2. Low Power Consumption: Features low power operations with a supply current of 2.3 mA, and a shutdown mode consuming only 10 µA.
3. Wide Operating Voltage: Operates with a supply voltage ranging from 3.0V to 3.6V.
4. Enhanced ESD Protection: Provides robust electrostatic discharge protection exceeding ±15kV HBM (human body model).
5. Fail-Safe Receiver: Includes fail-safe circuitry that ensures a known output state when the input is open, shorted, or terminated but not driven.
6. Extended Temperature Range: Functions effectively over a temperature range of -40°C to +85°C.
7. True RS-485/RS-422 Compatibility: Fully compatible with standard RS-485 and RS-422 communication protocols.
8. Compact Package: Available in an 8-pin SOIC package for space-constrained applications.
These features make the MAX3485EESA+T ideal for industrial automation, building automation, and other applications requiring robust serial communication.
Pinout
The MAX3485EESA+T is an RS-485/RS-422 transceiver. It is designed to operate with low power consumption and provides high-speed communication, up to 10Mbps. The MAX3485EESA+T comes in an 8-pin SOIC package. The pin functions are as follows:
1. RO (Receiver Output): Outputs the received data.
2. RE̅ (Receiver Enable): Active-low input. Enables the receiver when low.
3. DE (Driver Enable): Activates the driver when high.
4. DI (Driver Input): Accepts the data to be transmitted.
5. GND (Ground): Ground reference for all signals.
6. A (Non-inverting Driver Output / Receiver Input): Data line A.
7. B (Inverting Driver Output / Receiver Input): Data line B.
8. VCC (Power Supply): Positive supply voltage (3V to 3.6V).
This device facilitates half-duplex communication and is typically used in industrial systems, automotive networks, and other applications requiring robust data transmission over long distances.
1. RO (Receiver Output): Outputs the received data.
2. RE̅ (Receiver Enable): Active-low input. Enables the receiver when low.
3. DE (Driver Enable): Activates the driver when high.
4. DI (Driver Input): Accepts the data to be transmitted.
5. GND (Ground): Ground reference for all signals.
6. A (Non-inverting Driver Output / Receiver Input): Data line A.
7. B (Inverting Driver Output / Receiver Input): Data line B.
8. VCC (Power Supply): Positive supply voltage (3V to 3.6V).
This device facilitates half-duplex communication and is typically used in industrial systems, automotive networks, and other applications requiring robust data transmission over long distances.
Manufacturer
The MAX3485EESA+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is known for designing, manufacturing, and selling a wide range of analog and mixed-signal integrated circuits. The company specializes in creating products for applications in areas like communications, computing, consumer electronics, automotive, and industrial markets. Maxim Integrated has been recognized for its expertise in power management, signal processing, and interface technologies. As part of Analog Devices, Inc., the company continues to focus on innovation and providing solutions that enhance the performance and efficiency of electronic devices.
Application
The MAX3485EESA+T is a low-power transceiver commonly used in various applications requiring RS-485 or RS-422 communication protocols. Its primary application areas include industrial automation systems, motor control, building automation, HVAC systems, and point-of-sale networks. It is also utilized in security systems, remote device management, and data acquisition systems. The transceiver is designed for long-distance and noise-resistant communication, making it suitable for environments prone to electrical interference. Its low-power consumption and high-speed operation (up to 10Mbps) enhance its suitability for battery-powered devices and applications that require efficient data transmission over extended cable lengths.
Package
The MAX3485EESA+T is a transceiver IC packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. The "+T" usually denotes that the product is packaged in a tape and reel format for automated manufacturing processes.
