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SP3243EUEA
SP3243 ® 3 Driver/5 Receiver Intelligent +3.0V to +5.5V RS-232 Transceivers 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 ■ Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC 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 C2+ 1 28 C1+ C2- 2 27 V+ 3 26 VCC VR1IN 4 25 GND R2IN 5 24 C1- R3IN 6 R4IN 7 SP3243 23 ONLINE 22 SHUTDOWN 21 STATUS R5IN 8 T1OUT 9 20 R2OUT T2OUT 10 19 R1OUT T3OUT 11 18 R2OUT T3IN 12 17 R3OUT T2IN 13 16 R4OUT T1IN 14 15 R5OUT Now Available in Lead Free Packaging DESCRIPTION The SP3243 products are 3 driver/5 receiver RS-232 transceiver solutions intended for portable or handheld applications such as notebook and palmtop computers. The SP3243 includes one complementary receiver that remains alert to monitor an external 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 SP3243 series uses an internal high-efficiency, charge-pump power supply that requires only 0.1μF capacitors in 3.3V operation. This charge pump and Sipex's driver architecture allow the SP3243 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. SELECTION TABLE Power Supplies RS-232 Drivers RS-232 Receivers External Components AUTO ON-LINE® Circuitry TTL 3State # of Pins Gauranteed Data Rate ESD Rating SP3243 +3.0V to +5.5V 3 5 4 capacitors YES YES 28 120 2kV SP3243E +3.0V to +5.5V 3 5 4 capacitors YES YES 28 120 15kV Device SP3243B +3.0V to +5.5V 3 5 4 capacitors YES YES 28 250 2kV SP3243EB +3.0V to +5.5V 3 5 4 capacitors YES YES 28 250 15kV SP3243U +3.0V to +5.5V 3 5 4 capacitors YES YES 28 1000 2kV SP3243EU +3.0V to +5.5V 3 5 4 capacitors YES YES 28 1000 15kV Date: 2/05/06 SP3243 +3.0V to +5.5V RS-232 Transceivers 1 © Copyright 2006 Sipex Corporation
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