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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 V6603H is an RS-485 transceiver featuring half-duplex, low power consumption, low-slew-rate, polarity detection and self-adaption, and is completely compliant with the EIA/TIA-485 standard.

· Supply voltage range: 3.3V/5V/7V~24V

· 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

· Fail-safe receiver

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

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

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

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

· Package: MSOP-10


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