The MAX3221ECAE+T with RS-232 Interface IC +/-15kV ESD-Protected, 1 uA, 3.0V to 5.5V, 250kbps, RS-232 Transceivers with AutoShutdown manufactured by Analog Devices is a low-power, voltage-level-translation, RS-232/RS-485/RS-422 transceiver.It features a +/-15kV ESD protection from electrostatic discharge, a low-power 1µA normal operating current consumption, and a wide 3.0V to 5.5V input range. It supports RS-232 data transmission up to speeds of 250kbps, and features AutoShutdown to reduce power consumption in the presence of low line quiet conditions. It is designed with low-power shutdown and standby modes, and industrial grade performance. Its selectable Slew Rate is designed to minimize EMI and reduce reflections caused by improperly terminated cables, thereby allowing error-free data transmission.