SP3243H

® SP3223H/3243H High Speed Intelligent +3.0V to +5.5V RS-232 Transceivers ■ Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply ■ Interoperable with EIA/TIA-232 and adheres to EIA/TIA-562 down to a +2.7V power source ■ Auto-Online™ circuitry automatically wakes up from a 1µA shutdown ■ Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC Variations ■ ESD Specifications: +2kV Human Body Model ■ 460 Kbps minimum transmission rate ■ Ideal for High Speed RS-232 Applications DESCRIPTION The SP3223H and 3243H products are RS-232 transceiver solutions intended for portable or hand-held applications such as notebook and palmtop computers. 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 compliant 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 computer and PDA applications. The SP3243H includes one complementary receiver that remains alert to monitor an external device's Ring Indicate signal while the device is shutdown. The Auto-Online feat...