SP3238E 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 - AUTO ON-LINE® circuitry automatically wakes up from a 1µA shutdown - 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 ONLINE 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 STATUS Now Available in Lead Free Packaging DESCRIPTION The SP3238E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop puters. 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 pliant 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 puter and PDA applications. The SP3238E includes one plementary 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. Device SP3220E SP3223E SP3243E SP3238E Power Supplies +3.0V to +5.5V +3.0V to +5.5V +3.0V to +5.5V +3.0V to +5.5V RS-232 Drivers 1 2 3 5 RS-232 Receivers 1 2 5 3 External ponents 4 Capacitors 4 Capacitors 4 Capacitors 4 Capacitors Auto On-Line Circuitry No Yes Yes Yes SELECTION TABLE TTL...