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Rev. 6/25/03

SP3203

© Copyright 2003 Sipex Corporation

3V RS-232 Serial Transceiver with Logic Selector

The SP3203 provides a RS-232 transceiver solution for portable and hand-held applications

such as palmtops, PDA's and cell phones. The SP3203 uses an internal high-efficiency,

charge-pump that requires only 0.1µF capacitors during 3.3V operation. This charge pump

and Sipex's driver architecture allow the SP3203 to deliver compliant RS-232 performance

from a single power supply ranging from +3.0V to +5.5V.

The SP3203 is a 3-driver/2-receiver device, with a unique V

and output logic levels to allow interoperation in mixed-logic voltage systems such as PDA's

and cell phones. Receiver outputs will not exceed V

are scaled by the magnitude of the V

■ 3 Driver/ 2 Receiver Architecture

■ Logic selector function (V

input/output levels for mixed logic

systems

■ 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

■ Minimum 250Kbps data rate under load

■ Regulated Charge Pump Yields Stable

RS-232 Outputs Regardless of V

CC

Variations

■ ESD Specifications:

+2kV Human Body Model

DESCRIPTION

■ Applications

■ Palmtops

■ Cell phone Data Cables

■ PDA's

SP3203

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