MAX14781EESA+

MAXIM INTEGRATED PRODUCTS  MAX14781EESA+  芯片, RS485 收发器, 370KBPS, 5.5V, NSOIC-8

The is a half-duplex RS485 transceiver with polarity correction in 8 pin NSOIC package. This half-duplex ±25KV ESD-protected RS485 transceiver features integrated automatic polarity correction to ensure that miswired lines are autonomously corrected, simplifying equipment and network installation. It includes slew-rate limited drivers that minimize EMI, allows error-free data transmission up to 370Kbps. This device includes fail-safe circuitry, a logic-high receiver output when the receiver inputs are shorted or open. Hot-swap functionality on the receiver and driver enable inputs also eliminates false transitions on the bus during power-up or live insertion. It has 1/8-unit load receiver input impedance allowing up to 256 transceivers on the bus. It is used in power meter networks, HVAC networks and control systems.

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Supply voltage range is 4.5V to 5.5V

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Operating temperature range from -40°C to 85°C

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±15KV IEC 61000-4-2 air gap discharge ESD & ±9KV IEC 61000-4-2 contact discharge ESD

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True fail-safe receiver

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Low 10µA max shutdown current

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Maximum data rate of 370Kbps at driver

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Maximum data rate of 500Kbps at receiver

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Differential driver output skew is 140ns at RL = 54R, CL = 50pF

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Receiver output skew is 30ns at CL = 15pF