■ Meets true EIA/TIA-232-F Standardsfrom a +3.0V to +5.5V power supply■ 250kbps Transmission Rate Under Load■ 1µA Low-Power Shutdown with ReceiversActive (SP3222B)

■ Interoperable with RS-232 down to +2.7Vpower source

■ ESD Specifications:

±2kV Human Body Model

DESCRIPTION

The SP3222B/3232B series is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook or palmtop computers. The SP3222B/3232B series hasa high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3Voperation. This charge pump allows the SP3222B/3232B series to deliver true RS-232performance from a single power supply ranging from +3.0V to +5.5V. The ESD toleranceof the SP3222B/3232B devices are over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods. The SP3222B device has a low-power shutdown mode wherethe devices' driver outputs and charge pumps are disabled. During shutdown, the supplycurrent falls to less than 1µA.

SELECTION TABLE

MODELSP3222BSP3232B

P

owerSupplies+3.0Vto+5.5V+3.0Vto+5.5V

RS-232Drivers22

RS-232Receivers

22

ExternalComponents

44

Shutdown

YesNo

TTL3-StateYesNo

No.ofPins18,2016

Rev. 6/30/03 SP3222B/3232B True +3.0 to +5.5V RS-232 Transceivers

© Copyright 2003 Sipex Corporation

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