MAX489 driver / transceiver

The MAX489 is a low-power, half-duplex RS-485/RS-422 transceiver designed for reliable communication over long distances and in electrically noisy environments. It is ideal for industrial and commercial applications that require robust data transfer. The MAX489 features enhanced noise immunity, ESD protection, and operates from a single 5V supply. It supports data rates up to 250 kbps and includes both a driver and a receiver in a standard 8-pin package.

Key Features:

• Low power consumption
• Meets RS-485 and RS-422 standards
• Half-duplex communication
• Data rates up to 250 kbps
• Operates from a single 5V supply
• Driver short-circuit current limit and thermal shutdown
• Enhanced noise immunity
• ESD protection on RS-485 I/O pins
• Standard 8-pin SOIC/DIP package

Technical Specifications:

• Supply Voltage (VCC): 4.75V to 5.25V
• Driver Differential Output Voltage: ±1.5V (min)
• Receiver Input Sensitivity: ±200mV
• Receiver Input Resistance: 12kΩ (min)
• High-Level Input Voltage (VIH): 2V (min)
• Low-Level Input Voltage (VIL): 0.8V (max)
• High-Level Output Voltage (VOH): 3.5V (min) at Iout = -4mA
• Low-Level Output Voltage (VOL): 0.4V (max) at Iout = 4mA
• Data Rate: Up to 250 kbps
• Operating Temperature Range: -40°C to +85°C
• Package: 8-pin SOIC/DIP

Applications:

• Industrial Automation: Reliable data communication in factory automation systems.
• Building Automation: Used in HVAC control and building management systems.
• Embedded Systems: Provides robust communication in microcontroller and microprocessor-based projects.
• Networking Equipment: Enables data transfer over long distances in networking devices.
• Telecommunications: Ensures reliable communication in telecommunication systems.
• Security Systems: Used in surveillance and access control systems for reliable data transfer.

Datasheet:
For detailed technical information, refer to the MAX489 Datasheet.