MAX3471CUA+T

MAX3471CUA+T is a 1.6µA, RS-485/RS-422, half-duplex, differential transceiver for battery-powered systems. This half-duplex transceiver is intended for lithium battery-powered RS-485/RS-422 applications. It draws only 1.6µA (typical) supply current from a 3.6V supply with the receiver enabled and the driver disabled. Its wide 2.5V to 5.5V supply voltage guarantees operation over the lifetime of a lithium battery. This device features true fail-safe operation that guarantees a logic-high receiver output when receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The MAX3471 has a 1/8-unit load input resistance. When driver outputs are enabled and pulled above VCC or below GND, internal circuitry prevents battery backcharging.

• 1.6µA supply current with receiver enabled
• True fail-safe receiver input
• 1/8-unit-load receiver input
• Common-mode input voltage range from -7V to +10V
• 64Kbps minimum data rate at CL= 100pF
• 1.40µs typical driver input to output propagation delay at RDIFF= 1.5KW, CL1= CL2= 100pF
• 83µA typical supply current at DE = VCC, VCC ≤5.5V, no load
• 0°C to +70°C temperature range, 8 µMAX package

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