SP3249E

SP3249E Intelligent +3.0V to +5.5V RS-232 Transceiver 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: +15kV Human Body Model +15kV IEC61000-4-2 Air Discharge +8kV 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 SP3249E 24 C1+ 23 V+ 22 VCC 21 C120 T1IN 19 T2IN 18 T3 IN 17 R1OUT 16 R2OUT 15 T4IN 14 R3OUT 13 T5IN Now Available in Lead Free Packaging DESCRIPTION The SP3249E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers. The SP3249E uses an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge ...