Maxim MAX14830EVKIT+

ИнтерфейсUARTСовет(ы)

Overview

The MAX1482 and MAX14830EVKIT are low-power transceivers for RS-485 and RS-422 communication. Both feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables. Data rates are guaranteed up to 250kbps. The MAX1482/MAX14830EVKIT draw only 20μA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1μA. Both parts operate from a single +5V supply. Drivers are 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 fail-safe feature that guarantees a logic-high output if the input is open circuit. The MAX1482 is full duplex and the MAX14830EVKIT is half duplex. Both parts have a 1/8-unit-load input impedance that guarantees up to 256 transceivers on the bus.

Features