MAX3464CSA+

MAX3464CSA+ is a full duplex, high-speed differential bus transceiver for RS-485 and RS-422 communications. It is designed to meet TIA/EIA-422-B, TIA/EIA-485-A, V.11, and X.27 standards. This device operates from a +5V supply and feature true fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This enables all receiver outputs on a terminated bus to output logic highs when all transmitters are disabled. This device features a 1/4 standard unit load receiver input impedance that allows 128 transceivers on the bus. It is used in applications such as high-speed RS-485 communications, high-speed RS-422 communications, level translators, industrial-control local area networks, profibus applications.

• Recommended for profibus applications, allow up to 128 transceivers on the bus
• Power-supply voltage range from 4.75V to 5.25V
• Driver input hysteresis is 50mV typical at (VCC = +5V and TA = +25°C)
• Driver input current is ±1µA maximum at (VCC = +5V and TA = +25°C)
• Driver pulldown current is 15µA typical at (VCC = +5V and TA = +25°C)
• Supply current in normal operation is 2.5mA typical at (VCC = +5V and TA = +25°C)
• Supply current in SHDN is 1µA typical at (VCC = +5V and TA = +25°C)
• Driver propagation delay is 20ns maximum at (RDIFF = 54ohm, CL = 50pF)
• Receiver propagation delay is 20ns maximum at (CL = 15pF, VCC = +5V and TA = +25°C)
• Operating temperature range from 0°C to +70°C, 8-pin SO package

注释

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