SN65HVD31

3.3V 全双工 RS 485 驱动器和接收器

The SN65HVD3x devices are 3-state differential line drivers and differential-input line receivers that operate with 3.3-V power supply.

Each driver and receiver has separate input and output pins for full-duplex bus communication designs. They are designed for RS-422 and RS-485 data transmission over cable lengths of up to 1500 meters.

The SN65HVD30, , and SN65HVD32 devices are fully enabled with no external enabling pins.

The SN65HVD33, SN65HVD34, and SN65HVD35 devices have active-high driver enables and active-low receiver enables. A low, less than 1 µA, standby current can be achieved by disabling both the driver and receiver.

All devices are characterized for ambient temperatures from –40°C to 85°C. Low power dissipation allows operation at temperatures up to 105°C or 125°C, depending on package option.

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1/8 Unit-Load Option Available Up to 256 Nodes on the Bus

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Bus-Pin ESD Protection Exceeds 15-kV HBM

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Optional Driver Output Transition Times for Signaling Rates of 1 Mbps, 5 Mbps and 26 Mbps

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Line Signaling Rate is the Number of Voltage Transitions Made per Second Expressed in Units of bps bits per second

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Low-Current Standby Mode: <1 µA

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Glitch-Free Power-Up and Power-Down Protection for Hot-Plugging Applications

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5-V Tolerant Inputs

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Bus Idle, Open, and Short-Circuit Failsafe

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Driver Current Limiting and Thermal Shutdown

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Designed for RS-422 and RS-485 Networks

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5-V Devices Available, SN65HVD50-55