Exar Corporation XR32220
The XR32220 product is a 2 driver/ 2 receiver RS-232 transceiver featuring a variable low voltage logic interface, down to 1.65V. This product is intended for portable or hand-held applications such as notebook and palmtop computers. The XR32220EBER device feature slew-rate limited outputs for reduced crosstalk and EMI.GENERAL DESCRIPTION
The XR32220EUER device is optimized for high speed with data rates up to 1Mbps, easily meeting the demands of high speed RS-232 applications. The XR32220 uses an internal high-efficiency charge-pump power supply that requires only four 0.1μF capacitors in 3.3V operation. This charge pump combined with Exar's driver architecture allow the XR32220 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.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
●1.65V to 5.5V Logic Interface VL pin
● AUTO ON-LINE circuitry automatically wakes up from a 1A shutdown
● Regulated Ch...