SP3239E Datasheet | MaxLinear

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 - Minimum 250Kbps data rate under load - Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC Variations - Enhanced ESD Specifications: +15k V Human Body Model +15k V IEC61000-4-2 Air Discharge +8k V IEC61000-4-2 Contact Discharge C2+ 1 GND 2 C2- 3 V- 4 T1OUT 5 T2OUT 6 T3OUT 7 R1IN 8 R2IN 9 T4OUT 10 R3IN 11 T5OUT 12 NC 13 SHUTDOWN 14 28 C1+ 27 V+ 26 VCC 25 C124 T1IN 23 T2IN 22 T3 IN 21 R1OUT 20 R2OUT 19 T4IN 18 R3OUT 17 T5IN 16 R1OUT 15 NC Now Available in Lead Free Packaging DESCRIPTION The SP3239E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop puters. The SP3239E 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 SP3239E device to deliver pliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3239E is a 5-driver / 3-receiver device that is ideal for laptop / notebook puter and PDA applications. The SP3239E includes one plementary receiver that remains alert to monitor an external device's Ring Indicate signal while the device is shutdown. Device SP3223E SP3243E SP3238E SP3239E SP3249E Power Supplies +3.0V to +5.5V +3.0V to +5.5V +3.0V to +5.5V +3.0V to +5.5V +3.0V to +5.5V RS-232 Drivers 2 3 5 5 5 RS-232 Receivers 2 5 3 3 3 External ponents 4 Capacitors 4 Capacitors 4 Capacitors 4 Capacitors 4 Capacitors Auto On-Line Circuitry SELECTION TABLE TTL 3-State #...