MAX1485EUB+T

MAX1485EUB+T is a software-selectable RS-485/RS-422 transceiver. It contains one driver and one receiver and feature a 1/8-unit-load receiver input impedance, allowing up to 256 transceivers on the bus. It features reduced-slew-rate driver that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 250Kbps. Driver is output short-circuit current limited and are protected against excessive power dissipation by thermal-shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a failsafe feature that guarantees a logic-high output if the input is an open circuit. It is used in applications such as low-power RS-422/RS-485 communications, level translators, hand-held equipment, battery-powered equipment, transceivers for EMI-sensitive applications, and industrial-control local area networks.

• Slew-rate limiting allows error-free data transmission
• Allow up to 256 transceivers on the bus
• 0.250Mbps data rate, slew rate limited, driver enable
• 300µA typical quiescent current at (VCC = +5V and TA = +25°C)
• Driver output skew is 5ns typical at (RDIFF = 54ohm, CL1 = CL2 = 100pF)
• Driver rise or fall time is 15ns typical at (RDIFF = 54ohm, CL1 = CL2 = 100pF)
• Input current is ±2µA maximum at (VCC = +5V and TA = +25°C)
• Receiver input resistance is 96Kohm minimum at (VCC = +5V and TA = +25°C)
• Operating temperature range from -40°C to +85°C
• 10-µMAX package

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