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Product OverviewThe ISL3179EFBZ is a high ESD protected 3.3V Powered Single Transceiver thatmeet both the RS-485 and RS-422 standards for balanced communication. Eachdevice has low bus currents (+220µA/-150µA), so it presents a "1/5 unit load" tothe RS-485 bus. This allows up to 160 transceivers on the network withoutviolating the RS-485 specification's 32 unit load maximum and without usingrepeaters. Receiver (Rx) inputs feature a "full fail-safe" design, which ensuresa logic high Rx output if Rx inputs are floating, shorted or terminated butundriven. The ISL3180E is configured for full duplex applications. The ISL3179Ehalf duplex version multiplexes the Rx inputs and Tx outputs to allow atransceiver with an output disable function. Hot plug circuitry ensures that theTx and Rx outputs remain in a high impedance state while the power supplystabilizes.High data rates up to 40Mbps5V Tolerant logic inputs1/5 Unit load allows up to 160 devices on the busFull fail-safe (open, shorted, terminated/undriven) receiverHot plug - Tx and Rx outputs remain three-state during power-up4mA Maximum low quiescent current1µA Maximum low current shutdown mode-7 to +12V Common-mode input voltage rangeThree-state Rx and Tx outputs16/16.5ns (maximum) Tx/Rx propagation delays, 1.5ns (maximum) skewOperates from a single +3.3V supply (10% tolerance)Current limiting and thermal shutdown for driver overload protectionApplicationsMotor Drive & Control, Automation & Process Control, Communications &Networking, Security, IndustrialProduct InformationDevice Type: RS422 / RS485 TransceiverIC Interface Type: RS422, RS485No. of Drivers: 1DriversNo. of Receivers: 1ReceiversSupply Voltage Min: 3VSupply Voltage Max: 3.6VDriver Case Style: SOICNo. of Pins: 8PinsOperating Temperature Min: -40°COperating Temperature Max: 125°CProduct Range: -IC Generic Number: ISL3179E