MAX13487EESA
RS-422/RS-485 interface transceivers in 8-pin SOIC for communication systems
Manufacturer： ['Maxim', 'maxim']
series introduction
# MAX13487EESA: A Comprehensive Introduction to a High - Performance RS - 485/RS - 422 Transceiver
## 1. Overview
The MAX13487EESA is a member of Maxim Integrated's high - quality transceiver product line, specifically designed for RS - 485 and RS - 422 communication standards. These standards are widely used in industrial automation, building automation, security systems, and other applications that require reliable long - distance data transmission. The MAX13487EESA offers a robust and efficient solution for these communication needs, with a range of features that enhance performance and simplify system design.
## 2. Key Features
### 2.1 Electrical Characteristics
- **Low Power Consumption**: The device operates with low power requirements, making it suitable for battery - powered or energy - sensitive applications. This low power consumption helps to extend the battery life in portable devices and reduces overall energy costs in larger systems.
- **Wide Supply Voltage Range**: It can operate over a wide supply voltage range, typically from 3.0V to 5.5V. This flexibility allows the MAX13487EESA to be easily integrated into different power supply architectures, whether it's a 3.3V or 5V system.
- **High - Speed Data Transmission**: The transceiver supports data rates of up to 250kbps, enabling fast and efficient data transfer between devices. This high - speed capability is crucial for applications where real - time data communication is required, such as in industrial control systems.
### 2.2 ESD Protection
- **Robust ESD Protection**: The MAX13487EESA is equipped with excellent electrostatic discharge (ESD) protection on its bus pins. It can withstand up to ±15kV of human - body - model (HBM) ESD, which helps to prevent damage to the device during handling and in environments where ESD events are common. This protection ensures the reliability and longevity of the transceiver in harsh operating conditions.
### 2.3 Thermal Shutdown
- **Thermal Shutdown Feature**: To prevent overheating, the device has a built - in thermal shutdown mechanism. When the junction temperature exceeds a certain threshold, the transceiver automatically shuts down to protect itself from damage. Once the temperature cools down, it resumes normal operation, providing a reliable and safe operation in high - temperature environments.
### 2.4 Half - Duplex Operation
- **Half - Duplex Communication**: The MAX13487EESA is designed for half - duplex communication, which is suitable for many applications where data is transmitted in one direction at a time. This simplifies the communication protocol and reduces the complexity of the system design.
## 3. Pin Configuration and Functionality
### 3.1 Pinout
The MAX13487EESA comes in a small - outline integrated circuit (SOIC) package with a specific pin configuration. The key pins include:
- **VCC**: This is the power supply pin, which is connected to the appropriate power source within the specified voltage range.
- **GND**: The ground pin, which provides the reference voltage for the device.
- **RO (Receiver Output)**: This pin outputs the received data from the bus.
- **DI (Driver Input)**: The input pin for the data to be transmitted onto the bus.
- **RE (Receiver Enable)**: A control pin that enables or disables the receiver. When low, the receiver is enabled.
- **DE (Driver Enable)**: A control pin that enables or disables the driver. When high, the driver is enabled.
- **A and B**: These are the bus pins used for differential data transmission and reception.
### 3
Images for reference
8-SOIC
8-SOIC
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