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RS-485 Description

RS-485 chips have been broadly utilized in the fields of industrial control, instrument, meter, multi-media network, and mechatronic products. More and more chips are compliant with the RS-485 interface, the requests and implementations vary under different scenarios.


±15kV-ESD-protected, polarity adaptive, slew-rate-limited, RS-485 transceiver

supply voltage range: 4.5~5.5V

half-duplex mode

data rate: 20kbps

high driving capability: up to 256 drivers on one bus

differential driver output: 2.88VVOD5.0V @54Ω

ESD protection: ±15kV (Contact Discharge)

fail-safe receiver

overthermal, overcurrent, and overvoltage protected

polarity detection and adaption, eradicating connection failure due to mis-wiring

reduced slew-rate driver to minimize EMI and reduce reflections caused by improperly teminated cables

operation temperature: -40~+85°C

package: SOP-8


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