MaxLinear SP3243EBEA-L/TR

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 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 SP3243E series 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 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. The SP3243E transceivers meet the EIA/TIA232 and ITU-T V.28/V.24 communication protocols and can be implemented in battery-powered, portable, or hand-held applications such as notebook or palmtop computers. The SP3243E devices feature Exar's proprietary and patented (U.S. - 5,306,954) on-board charge pump circuitry that generates ±5.5V RS-232 voltage levels from a single +3.0V to +5.5V power supply. The SP3243EU devices can operate at a data rate of 1000kbps fully loaded. The SP3243E is a 3-driver/5-receiver device, ideal for portable or hand-held applications. The SP3243E includes one complementary always-active receiver that can monitor an external device (such as a modem) in shutdown. This aids in protecting the UART or serial controller IC by preventing forward biasing of the protection diodes where Vcc may be disconnected. The SP3243E series is an ideal choice for power sensitive designs.

• 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 IEC61000-4-2 Air Discharge ±8KV IEC61000-4-2 Contact Discharge
• 250 Kbps min. transmission rate (EB)
• 1000 Kbps min. transmission rate (EU)
• Ideal for High Speed RS-232 Applications
• Now Available in Lead Free Packaging