Intelligent +3.0V to +5.5V RS-232 Transceiver Electronic components BOM Integrated circuit IC SP3238EEY-L

Product Descriptions

The SP3238E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers. The SP3238E uses an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump and Exar's driver architecture allow the SP3238E device to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3238E is a 5-driver / 3-receiver device that is ideal for laptop / notebook computer and PDA applications. The SP3238E includes one complementary receiver that remains alert to monitor an external device's Ring Indicate signal while the device is shutdown.

The AUTO ON-LINE® feature allows the device to automatically "wake-up" during a shutdown state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise, the device automatically shuts itself down drawing less than 1µA.

Product 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 shutdown

■ Minimum 250Kbps data rate under load

■ Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC Variations

■ Enhanced ESD Specifications:

+15kV Human Body Model

+15kV IEC61000-4-2 Air Discharge

+8kV IEC61000-4-2 Contact Discharge

Specifications

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