
Signal Processing Technologies
DESCRIPTION
The SP3222EH and the 3232EH are 2 driver/2 receiver RS-232 transceiver solutions intended for portable or hand-held applications such as notebook or palmtop computers. Their data transmission rate of 460Kbps meeting the demands of high speed RS-232 applications. Both ICS have a high-efficiency, charge-pump power supply that requires only 0.1µF capacitors for 3.3V operation. The charge pump allows the SP3222EH and the 3232EH series to deliver true RS-232 performance from a single power supply ranging from +3.3V to +5.0V. The ESD tolerance of the SP3222EH/3232EH devices exceeds +15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods.
FEATURES
■Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply
■Interoperable with RS-232 down to +2.7V power source
■1 µA Low-Power Shutdown with Receivers Active (SP3222EH)
■Enhanced ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
■460Kbps Minimum Transmission Rate
■Ideal for Handheld, Battery Operated Applications