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IC TRANSCEIVER FULL 3/5 28SSOP
■ 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 toa +2.7V power source
■ AUTO ON-LINE circuitry automatially wakes up from a 1μA shutdown
■ Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of V∝ Variations
■ Enhanced ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8KV IEC1000-4-2 Contact Discharge
■ 250 Kbps min. transmission rate (EB)
■ 1000 Kbps min. transmission rate (EU)
■ Ideal for High Speed RS 232 Applications
The SP3243E products are 3 driver/5 receiver RS- 232 transceiver solutions intended for portable or hand-held applications such as notebook and palmtop computers. The SP3243E includes one complementary receiver that remains alert to monitor an extemnal device's Ring Indicate signal while the device is shutdown. The SP3243E and EB devices feature slew-rate limited outputs for reduced crosstalk and EMI. The "U" and "H" series are optimized for high speed with data rates up to 1Mbps, easily meeting the demands of high speed RS 232 applications. The SP3243E series uses an interal high-fficiency, charge -pump power supply that requires only 0.1μF capacitors in 3.3V operation. This charge pump and Exar's driver architecture allow the SP3243E series to deliver compliant RS -232 performance from a single power supply ranging from +3.0V to +5.5V. 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.
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