¡El SP3223E and3243Eproducts are RS-232 transceiver solutions intended for portable orhand-held applications such as notebook and palmtop computers. ¡El SP3223E and3243Euse an internal high-efficiency, charge-pump power supply that requires only 0.1μF capacitorsin 3.3V operation. This charge pump and Sipex'sdriver architecture allow the SP3223E/3243Eseries to deliver compliant RS-232 performance from a single power supply rangingfrom +3.3V to +5.0V. ¡El SP3223Eis a 2-driver/2-receiver device, and the SP3243Eis a3-driver/5-receiver device ideal for laptop/notebook computer and PDA applications.¡El SP3243Eincludes one complementary receiver that remains alert to monitor an externaldevice's Ring Indicate signal while the device is shutdown.¡El AUTO ON-LINE®feature allows the device to automatically "wake-up" during a shutdownstate when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise,the device automatically shuts itself down drawing less than 1μA.