RS-232 独立接口
下载次数:488发布日期:2011-05-14
The Sipex’s SP3222/SP3232 transceivers allow creating isolated RS-232 interface with up to 2kVrms
isolation that can support up to 250 kbps data rate communication using only few external components.
FEATURES
• +5V Single Supply Operation
• ESD Protection for Bus-pins (±15kV
Air-Gap Discharge and Human Body
Model and ±8kV Contact Discharge)
• Tri-state driver output at power off and
shutdown mode
APPLICATION
• Low Power RS232 Systems
• DTE-DCE Interface
• Local Area Networks
• Industrial Process Control
• Building Automation
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at these ratings or any other above
those indicated in the operation sections of the specifications below is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
Supply Voltage (Vcc) …... + 6.0V
Input voltage at input pins (SHDN, EN) …..……. - 0.3V to + (Vcc+ 0.3V)
Receiver input voltage (Rxin) ………………….... ±25V
Output voltages
Txout ……………………………………………….. ±13.2V
Rxout ……………………………………………….. - 0.3V to (Vcc+ 0.3V)
All other parameters are limited by used components and should be referenced at appropriate data
sheets.
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