Difference between revisions of "IO Expander"
From BitWizard WIKI
Line 4: | Line 4: | ||
<br> | <br> | ||
I2C address:<br> | I2C address:<br> | ||
− | 0100 000 tru 0100 111<br> | + | 0100 000 tru 0100 111 (jumper selectable)<br> |
<br> | <br> | ||
SPI address:<br> | SPI address:<br> | ||
− | 0100 000 tru 0100 011<br> | + | 0100 000 tru 0100 011 (jumper selectable)<br> |
= physical dimensions = | = physical dimensions = | ||
* Board outline: 50x25mm | * Board outline: 50x25mm |
Revision as of 18:11, 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)