SP3223EEY-L/TR

The SP3223 products are RS-232 transceiver solutions intended for portable applications such as notebook and hand held computers. These products use 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 SP3223 series to deliver compliant RS-232 performance from a single power supply ranging from +3.3V to +5.0V. The SP3223 is a 2-driver/2-receiver device ideal for laptop/notebook computer and PDA applications. 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 SP3223 is a 2-driver/2-receiver device ideal for portable or handheld applications. The SP3223 transceivers meet the EIA/TIA232 and ITU-T V.28/V.24 communication protocols and can be implemented in battery-powered, portable, or handheld applications such as notebook or handheld computers. The SP3223 devices feature Exar's proprietary on-board charge pump circuitry that generates ±5.5V RS-232 voltage levels from a single +3.0V to +5.5V power supply. These devices are an ideal choice for power sensitive design

Applications

• notebook and hand held computers
• laptop/notebook computer
• PDA
• portable or handheld applications

Key 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 (EB)
• 1 Mbps data rate for high speed RS-232 (EU)
• Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of Vcc Variations
• ESD Specifications: +15KV Human Body Model +15KV IEC61000-4-2 Air Discharge +8KV IEC61000-4-2 Contact Discharge