1

Rev.

2/7/01

SP3203E

© Copyright 2001 Sipex Corporation

3V RS-232 Serial Transceiver with Logic

Selector and15kV ESD Protection

The SP3203E provides a RS-232 transceiver solution for portable and hand-held applica-

tions such as palmtops, PDA's and cell phones. The SP3203E uses an internal high-

efficiency, charge-pump that requires only 0.1

µF capacitors during 3.3V operation. This

charge pump and Sipex's driver architecture allow the SP3203E to deliver compliant RS-232

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

The SP3203E 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

s 3 Driver/

2 Receiver Architecture

s Logic selector function (V

input/output levels for mixed logic

systems

s Meets true EIA/TIA-232-F Standards

from a +3.0V to +5.5V power supply

s Interoperable with EIA/TIA-232 and

adheres to EIA/TIA-562 down to a

+2.7V power source

s Minimum 250Kbps data rate under load

s Regulated Charge Pump Yields Stable

RS-232 Outputs Regardless of V

CC

Variations

s Enhanced ESD Specifications:

+15KV Human Body Model

+15KV IEC1000-4-2 Air Discharge

+8KV IEC1000-4-2 Contact Discharge

DESCRIPTION

s Applications

s Palmtops

s Cell phone Data Cables

s PDA's

SP3203E

®