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SP3220E
+3.0V to +5.5V RS-232 Driver/Receiver Pair
■ Meets True RS-232 Protocol Operation From A +3.0V to +5.5V Power Supply ■ Minimum 120 Kbps Data Rate Under Full Load ■ 1µA Low-Power Shutdown With Receivers Active ■ Interoperable With RS-232 Down To +2.7V Power Source ■ Pin-Compatible With The MAX3221E Device Without The AUTO ON-LINE® Feature ■ Enhanced ESD Specifications: +15kV Human Body Model +15kV IEC1000-4-2 Air Discharge +8kV IEC1000-4-2 Contact Discharge DESCRIPTION The SP3220E device is an RS-232 driver/receiver solution intended for portable or hand-held applications such as notebook or palmtop computers. The SP3220E device has a highefficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation.