RS485 Transceiver Module ( Max 485 )

Detail about RS485 Transceiver Module

The MAX485 is low-power transceivers for RS-485 and RS- 422 communication. The IC contains one driver and one receiver. The driver slew rates of the MAX485 is not limited, allowing them to transmit up to 2.5Mbps. These transceivers draw between 120μA and 500μA of supply current when un- loaded or fully loaded with disabled drivers. All parts operate from a single 5V supply. Drivers are short- circuit current limit- ed and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail- safe feature that guarantees a logic-high output if the input is open circuit. The MAX485 is designed for half-duplex applications.

Features

• Low Quiescent Current: 300μA
• -7V to +12V Common-Mode Input Voltage Range
• Three-State Outputs
• 30ns Propagation Delays, 5ns Skew
• Operate from a Single 5V Supply
• Allows up to 32 Transceivers on the Bus
• Data rate: 2.5 Mbps
• Current-Limiting and Thermal Shutdown for Driver Overload Protection
• The transmitter outputs and receiver inputs are protected to ±15kV
• Air ESD 

Descriptions

• On-board MAX485 chip
• Low power consumption for the RS-485 communication, slew-rate limited transceiver
• Onboard 5.08mm pitch 2P terminal to facilitate RS-485 communication wiring
• All pins of chip have been led out
• Can be controlled through the microcontroller
• Working voltage: 5V
• Board Size: Approx. 44 x14mm