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1. DESCRIPTION
The SP3238EEY-L/TR 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.
2. FEATURES
1. Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply
2. Interoperable with EIA/TIA-232 and adheres to EIA/TIA-562 down to a +2.7V power source
3. AUTO ON-LINE® circuitry automatically wakes up from a 1µA shutdown
4. Minimum 250Kbps data rate under load
5. Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC Variations
6. Enhanced ESD Specifications:
- +15kV Human Body Model
- +15kV IEC61000-4-2 Air Discharge
- +8kV IEC61000-4-2 Contact Discharge
3. Pin configuration
4. Package overview
