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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.


The V6603 is an RS-485 transceiver featuring half-duplex, low power consumption, low slew rate, and real-time polarity detection and adaption. It is completely compliant with the EIA/TIA-485 standard.

· Supply voltage range: 3.3 V/5 V

· Half-duplex mode

· Maximum data rate: 2 Mbps @distance < 50 m, 1 Mbps @distance < 300 m

· High driving capability: Up to 256 transmitters on one bus

· Differential driver output: 1.5 V VOD 5.0 V @54 Ω

· ESD protection: ± 15 kV Human Body Model (HBM)

· Fail-safe receiver

· Over-temperature, over-current, and over-voltage protection

· Supporting real-time polarity detection and adaption

· Low-slew-rate driver to minimize EMI and reduce reflections caused by inappropriate terminal matching

· Operation temperature: -40 °C ~ +85 °C

· Package: SOP-8


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