深圳市中立信电子科技有限公司

SP3222EEA-L/TR

RS-232接口集成电路 3V-5.5V RS-232 2-DRV/2-RCV LOW PWR

True 3.0V to 5.5V RS-232 Transceivers

Description SP3222EEA-L/TR

The SP3222EEA-L/TR SP3222E and SP3232E series are RS-232 transceiver solutions  intended for portable or hand-held applications such as notebook  or palmtop computers. The SP3222E / SP3232E series has a highefficiency,  charge-pump power supply that requires only 0.1μF  capacitors in 3.3V operation. This charge pump allows the SP3222E  / SP3232E series to deliver true RS-232 performance from a single  power supply ranging from 3.0V to 5.5V. The SP3222E / SP3232E  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 SP3222E / SP3232E devices are over ±15kV  for both Human Body Model and IEC61000-4-2 Air discharge test  methods. The SP3222E 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.

FEATURES SP3222EEA-L/TR

■ Meets true EIA/TIA-232-F standards from

a 3.0V to 5.5V power supply

■ Minimum 120kbps data rate under full load

■ 1μA low power shutdown with receivers

active (SP3222E)

■ Interoperable with RS-232 down to a 2.7V

power source

■ Enhanced ESD specifications:

±15kV Human Body Model

±15kV IEC61000-4-2 Air Discharge

±8kV IEC61000-4-2 Contact

Discharge