Specifications
| Attribute | Value |
| Package | Tube |
| ProductStatus | Obsolete |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| NumberofDrivers/Receivers | 1/1 |
| Duplex | Half |
| ReceiverHysteresis | 70 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) |
Overview
Description
The MAX1487CSA is a low-power transceiver designed for RS-485 and RS-422 communication applications. It is manufactured by Maxim Integrated. This device is primarily used for data transmission over long distances in industrial environments, offering robust performance and noise immunity. The MAX1487CSA operates with a single 5V power supply and features a fail-safe operation, ensuring stability when inputs are unconnected. It supports data rates up to 250 kbps and is capable of driving long transmission lines with a capacity of up to 32 unit loads on the bus.
Key features include a low supply current of 300 µA, allowing for efficient power usage in applications. It also has a thermal shutdown feature to protect against overheating. The transceiver has a short-circuit protection mechanism to safeguard against network faults. Its compact 8-pin SOIC package makes it suitable for space-constrained applications. Overall, the MAX1487CSA is ideal for use in environments where reliable, low-power, and high-performance serial communication is required.
Key features include a low supply current of 300 µA, allowing for efficient power usage in applications. It also has a thermal shutdown feature to protect against overheating. The transceiver has a short-circuit protection mechanism to safeguard against network faults. Its compact 8-pin SOIC package makes it suitable for space-constrained applications. Overall, the MAX1487CSA is ideal for use in environments where reliable, low-power, and high-performance serial communication is required.
Equivalent
The MAX1487CSA is a low-power RS-485/RS-422 transceiver. Equivalent products include:
1. SN75176 by Texas Instruments
2. ADM485 by Analog Devices
3. SP485 by MaxLinear
4. LTC485 by Analog Devices (formerly by Linear Technology)
5. SN65HVD485E by Texas Instruments
These alternatives offer similar functionalities suitable for differential data transmission in industrial and communication applications. Always check the datasheet for specific features and compatibility.
1. SN75176 by Texas Instruments
2. ADM485 by Analog Devices
3. SP485 by MaxLinear
4. LTC485 by Analog Devices (formerly by Linear Technology)
5. SN65HVD485E by Texas Instruments
These alternatives offer similar functionalities suitable for differential data transmission in industrial and communication applications. Always check the datasheet for specific features and compatibility.
Features
The MAX1487CSA is a low-power transceiver for RS-485 and RS-422 communication protocols. Key features include:
1. Supply Voltage: Operates with a single 5V supply.
2. Low Power Consumption: Features reduced power usage suitable for battery-powered devices.
3. High Data Rate: Supports data rates up to 250 kbps.
4. ESD Protection: Offers electrostatic discharge protection to ensure robust communication.
5. Short-Circuit Protection: Protects against short circuits to prevent damage.
6. Low Power Shutdown Mode: Reduces power consumption when not in operation.
7. Driver/Receiver Enable: Includes independent enable pins for precise control.
8. Pin and Function Compatible: Compatible with standard RS-485/RS-422 transceivers, allowing easy replacement or integration.
9. Extended Operating Temperature Range: Usable in a wide range of environments, from -40°C to +85°C.
The device is suitable for applications requiring reliable and efficient data communication over long distances in industrial and commercial environments. Its design optimizes performance while minimizing power usage and ensuring durability.
1. Supply Voltage: Operates with a single 5V supply.
2. Low Power Consumption: Features reduced power usage suitable for battery-powered devices.
3. High Data Rate: Supports data rates up to 250 kbps.
4. ESD Protection: Offers electrostatic discharge protection to ensure robust communication.
5. Short-Circuit Protection: Protects against short circuits to prevent damage.
6. Low Power Shutdown Mode: Reduces power consumption when not in operation.
7. Driver/Receiver Enable: Includes independent enable pins for precise control.
8. Pin and Function Compatible: Compatible with standard RS-485/RS-422 transceivers, allowing easy replacement or integration.
9. Extended Operating Temperature Range: Usable in a wide range of environments, from -40°C to +85°C.
The device is suitable for applications requiring reliable and efficient data communication over long distances in industrial and commercial environments. Its design optimizes performance while minimizing power usage and ensuring durability.
Pinout
The MAX1487CSA is an RS-485/RS-422 transceiver with an 8-pin configuration. It is designed for communication in industrial and commercial applications where robust data transmission is required.
Pin Functions:
1. Ro (Receiver Output): Outputs the received data.
2. RE̅ (Receiver Enable): Active-low input. Enables the receiver when low.
3. DE (Driver Enable): Controls driver output. Enables the driver when high.
4. DI (Driver Input): Data input for the driver.
5. GND: Ground reference for the device.
6. A (Non-inverting Driver Output and Receiver Input): Part of the differential bus line.
7. B (Inverting Driver Output and Receiver Input): Complements the A line for differential signaling.
8. VCC: Power supply input, typically 5V.
The MAX1487CSA is used to convert TTL/CMOS logic levels to RS-485 compatible differential levels and vice versa. It supports half-duplex communication and can operate at data rates up to 250 kbps. The device is optimized for low power consumption and provides enhanced electrostatic discharge (ESD) protection, making it suitable for rugged environments.
Pin Functions:
1. Ro (Receiver Output): Outputs the received data.
2. RE̅ (Receiver Enable): Active-low input. Enables the receiver when low.
3. DE (Driver Enable): Controls driver output. Enables the driver when high.
4. DI (Driver Input): Data input for the driver.
5. GND: Ground reference for the device.
6. A (Non-inverting Driver Output and Receiver Input): Part of the differential bus line.
7. B (Inverting Driver Output and Receiver Input): Complements the A line for differential signaling.
8. VCC: Power supply input, typically 5V.
The MAX1487CSA is used to convert TTL/CMOS logic levels to RS-485 compatible differential levels and vice versa. It supports half-duplex communication and can operate at data rates up to 250 kbps. The device is optimized for low power consumption and provides enhanced electrostatic discharge (ESD) protection, making it suitable for rugged environments.
Manufacturer
The MAX1487CSA is manufactured by Maxim Integrated, a company known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. Maxim Integrated specializes in producing a wide range of semiconductor components used in various applications, including communications, computing, industrial control, and automotive sectors. In 2021, Maxim Integrated was acquired by Analog Devices, Inc. (ADI), another leading company in the semiconductor industry. ADI focuses on high-performance analog technology and mixed-signal solutions, serving a diverse array of markets.
Application
The MAX1487CSA is a low-power transceiver designed for RS-485 and RS-422 communication protocols. Its primary application areas include industrial automation, building automation systems, and data communication networks. It is ideal for systems requiring reliable long-distance data transmission with high noise immunity, such as process control, instrumentation, and HVAC systems. Additionally, it is used in security systems and telecommunications where robust, high-speed data exchange over twisted-pair cables is essential. The device's ability to operate on a 5V supply and provide low power consumption makes it suitable for battery-powered applications.
Package
The MAX1487CSA is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. This type of package is commonly used for integrated circuits and offers a compact form factor suitable for surface mounting on printed circuit boards (PCBs).
