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Date: 7/21/04

SP3221E +3.0V to +5.5V RS-232 Transceiver

© Copyright 2004 Sipex Corporation

SP3221E

Intelligent +3.0V to +5.5V RS-232 Transceiver

The SP3221E is a RS-232 transceiver solution intended for portable or hand-held applications

such as notebook and palmtop computers. The SP3221E has a high-efficiency, charge-pump

power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump and low

dropout transmitters allow the SP3221E device to deliver true RS-232 performance from a

single power supply ranging from +3.3V to +5.0V. The

Auto-Online feature allows the device

to automatically "wake-up" during a shutdown state when an RS-232 cable is connected .

Otherwise, the device automatically shuts itself down drawing less than 1µA.

■ Meets true EIA/TIA-232-F Standards

from a +3.0V to +5.5V power supply

■ Operates with EIA/TIA-232 and adheres

to EIA/TIA-562 down to a +2.7V power

source

supply current when in shutdown

■ 240kbps data rate under load

■ 6V/µs minimum slew rate

■ The SP3221 is the industries smallest

single-supply RS-232 transceiver

package

■ Enhanced ESD Specifications:

+15KV Human Body Model

+15KV IEC1000-4-2 Air Discharge

+8KV IEC1000-4-2 Contact Discharge

DESCRIPTION

SELECTION TABLE

Applicable U.S. Patents - 5,306,954; and other patents pending.

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SHUTDOWN

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C1-

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C2-

ONLINE

EN

R1IN

GND

T1OUT

STATUS

8

9

SP3221

T1IN

R1OUT

Now Available in Lead Free Packaging