SP3223B - Intelligent +3.0V to +5.5V RS-232 Transceivers
The SP3223B and SP3243B products are RS-232 transceiver solutions intended for portable or hand-held applications such as notebook and palmtop computers.
The SP3223B and SP3243B use an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation.
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