DESCRIPTION

The SP3221E is an RS-232 transceiver solution intended for portable applications such as notebook and hand held computers. This device uses an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump and Exars driver architecture allow the SP3221E to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3221E is a 1-driver/1-receiver device ideal for laptop/notebook computer and PDA applications. The SP3221E is offered in 16 pin TSSOP and SSOP packages.

FEATURES

• 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

• AUTO ON-LINE® circuitry automatically wakes up from a 1µA typical shutdown

• Minimum 250kbps data rate under load

• Regulated charge pump yields stable RS-232 outputs regardless of VCC variations

• ESD specifications:

+15KV Human Body Model

+15KV IEC61000-4-2 Air Discharge

+8KV IEC61000-4-2 Contact Discharge