SP3243H Datasheet | Sipex

DESCRIPTION The SP3223H and 3243H products are RS-232 transceiver solutions intended for portable or hand-held applications such as notebook and palmtop puters. The "H" series is based on Sipex's SP3223/3243 series and has been enhanced for high speed. The data rate is improved to 460Kbps, easily meeting the demands of high speed RS-232 applications. The SP3223H and 3243H use an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump and Sipex's driver architecture allow the SP3223H/3243H series to deliver pliant RS-232 performance from a single power supply ranging from +3.3V to +5.0V. The SP3223H is a 2-driver/2-receiver device, and the SP3243H is a 3-driver/5-receiver device, ideal for laptop/notebook puter and PDA applications. The SP3243H includes one plementary receiver that remains alert to monitor an external device's Ring Indicate signal while the device is shutdown. The Auto-Online feature allows the device to automatically "wake-up" during a shutdown state 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. SELECTION TABLE Device SP3223H SP3243H Power Supplies +3.0V to +5.5V +3.0V to +5.5V RS-232 Drivers 2 3 RS-232 Receivers 2 5 External ponents 4 capacitors 4 capacitors Auto-Online Circuitry YES YES TTL 3-State YES YES No. of Pins 20 28 Applicable U.S. Patents - 5,306,954; and other patents pending. Rev. 6/30/03 SP3223H +3.0V to +5.5V RS-232 Transceivers © Copyright 2003 Sipex Corporation ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent damage to the device. VCC...