MAX3221EEAEIC TXRX RS232 250KBPS SD 16-SSOP|MAXIM INTEGRATED|Lead All|RoHS Mixed MAX3221EEAE+ MAX3221EEAE-TIC TXRX RS232 250KBPS SD 16SSOP|MAXIM INTEGRATED|Lead All|RoHS Mixed MAX3221EEAE+T