Difference between revisions of "IO Expander"
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I2C address:<br> |
I2C address:<br> |
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0100 000 tru 0100 111<br> |
0100 000 tru 0100 111 (jumper selectable)<br> |
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<br> |
<br> |
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SPI address:<br> |
SPI address:<br> |
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0100 000 tru 0100 011<br> |
0100 000 tru 0100 011 (jumper selectable)<br> |
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= physical dimensions = |
= physical dimensions = |
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* Board outline: 50x25mm |
* Board outline: 50x25mm |
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Revision as of 17:11, 21 March 2014
general info
Based on the MCP23008 (I2C) or MCP23S08 (SPI) IO expander chips from Microchip.
http://ww1.microchip.com/downloads/en/DeviceDoc/21919e.pdf
I2C address:
0100 000 tru 0100 111 (jumper selectable)
SPI address:
0100 000 tru 0100 011 (jumper selectable)
physical dimensions
- Board outline: 50x25mm
- Mounting hole diameter: 3mm
- Mounting hole pitch: 44x19mm (3mm from board edge)