SP3222EB

® SP3222EB/3232EB True +3.0V to +5.5V RS-232 Transceivers ■ Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply ■ 250kbps Transmission Rate Under Load ■ 1µA Low-Power Shutdown with Receivers Active (SP3222EB) ■ Interoperable with RS-232 down to +2.7V power source ■ Enhanced ESD Specifications: ±15kV Human Body Model ±15kV IEC1000-4-2 Air Discharge ±8kV IEC1000-4-2 Contact Discharge DESCRIPTION The SP3222EB/3232EB series is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook or palmtop computers. The SP3222EB/3232EB series has a high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump allows the SP3222EB/3232EB series to deliver true RS232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3222EB/ 3232EB are 2-driver/2-receiver devices. This series is ideal for portable or hand-held applications such as notebook or palmtop computers. The ESD tolerance of the SP3222EB/ 3232EB devices are over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods. The SP3222EB device has a low-power shutdown mode where the devices' driver outputs and charge pumps are disabled. During shutdown, the supply current falls to less than 1µA. SELECTION TABLE MODEL SP3222EB SP3232EB Power Supplies +3.0V to +5.5V +3.0V to +5.5V RS-232 Drivers 2 2 RS-232 Receivers 2 2 External Components 4 4 Shutdown Yes No TTL 3-State Yes No No. of Pins 18, ...