XR32220数据手册集成电路（IC）的驱动器接收器收发器规格书PDF

描述 Description

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. 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.
For technical support or help choosing a product please email Exar’s Serial Technical Support group at: serialtechsupport@exar.com.

特性 Features

·1.65V to 5.5V Logic Interface VL pin
·Small 4mm x 4mm 24-pin QFN package
·AUTO ON-LINE circuitry automatically wakes up from a 1µA shutdown
·Enhanced ESD Specifications
·±15kV Human Body Model
·±15kV IEC61000-4-2 Air Discharge
·±8kV IEC61000-4-2 Contact Discharge
·250Kbps min transmission rate (speed grade B)
·1000Kbps min transmission (speed grade U)
·Meets true EIA/TIA-232-F Standards from a +3.0V to 5.5V power supply
·Regulated Charge Pump yields stable RS-232 Outputs regardless of VCC variations
·-40°C to 85°C ambient operating temperature

应用 Application

·Industrial and Single Board Computers
·Industrial and Process Control Equipment
·Point-Of-Sales Equipment
·Building Security and Automation