SP3249E Datasheet | Sipex

DESCRIPTION The SP3249E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop puters. The SP3249E uses 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 SP3249E device to deliver pliant RS-232 performance from a single power supply ranging from +3.0V to +5.0V. The SP3249E is a 5-driver/3-receiver device, ideal for laptop/notebook puter and PDA applications. SELECTION TABLE Part Number Power Supplies RS-232 Drivers RS-232 Receivers External ponents AUTO ON-LINE™ Circuitry TTL 3-State Number of Pins SP3223E SP3243E SP3238E SP3239E SP3249E +3.0V to +5.5V +3.0V to +5.5V +3.0V to +5.5V +3.0V to +5.5V +3.0V to +5.5V 2 3 5 5 5 2 5 3 3 3 4 capacitors 4 capacitors 4 capacitors 4 capacitors 4 capacitors YES YES YES NO NO YES YES YES YES NO 20 28 28 28 24 Applicable U.S. Patents - 5,306,954; and other patents pending. Rev.4/08/02 SP3249E Intelligent +3.0V to +5.5V RS-232 Transceivers © Copyright 2002 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 -0.3V to +6.0V V+ (NOTE 1) -0.3V to +7.0V V- (NOTE 1) +0.3V to -7.0V V+ + |V-| (NOTE 1) +13V ICC (DC VCC or GND current) +100m A Input Voltages Tx IN -0.3V to +6.0V Rx IN +25V Output Voltages Tx OUT...