MAX485 Module, RS485 Module, TTL to RS-485 Module

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ข้อมูลเพิ่มเติมMAX485 Module, RS485 Module, TTL to RS-485 Module
On-board MAX485 chip is a low-power and slew-rate-limited transceiver used for RS-485 communication. It works at a single +5V power supply and the rated current is 300 A. Adopting half-duplex communication to implement the function of converting TTL level into RS-485 level, it can achieve a maximum transmission rate of 2.5Mbps. MAX485 transceiver draws supply current of between 120A and 500A under the unloaded or fully loaded conditions when the driver is disabled. The driver is limited for short-circuit current and the driver outputs can be placed at a high impedance state through the thermal shutdown circuit. The receiver input has a fail-safe feature that guarantees logic high output if the input is open circuit. In addition, it has a strong anti-interference performance.

MAX485 ModulePin
VCC........5V
A............Non-inverting Receiver Input and No-ninverting Driver Output.
B............Inverting Receiver Input and Inverting Driver Output
GND.......0V

R0..........Receiver Output (to Rx pin of microcontroller)
RE..........Receiver Output Enable (Low to enable)
DE..........Driver Output Enable (high to enable)
DI...........Driver Input (to Tx pin of microcontroller)

Specification:
Working voltage: 5V
Board size: 46mm*20mm*12mm/1.81*0.78*0.47''
Packing weight: 4g

ดูรายละเอียดเพิ่มเติมได้ที่
https://www.itead.cc/wiki/MAX485_MODULE