Difference between revisions of "IO Expander"
From BitWizard WIKI
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+ | = General info = | ||
Based on the MCP23008 (I2C) or MCP23S08 (SPI) IO expander chips from Microchip.<br> | Based on the MCP23008 (I2C) or MCP23S08 (SPI) IO expander chips from Microchip.<br> | ||
http://ww1.microchip.com/downloads/en/DeviceDoc/21919e.pdf <br> | http://ww1.microchip.com/downloads/en/DeviceDoc/21919e.pdf <br> | ||
<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 = | ||
+ | * Board outline: 50x25mm | ||
+ | * Mounting hole diameter: 3mm | ||
+ | * Mounting hole pitch: 44x19mm (3mm from board edge) | ||
+ | |||
+ | = Using the board = |
Latest revision as of 13:03, 11 November 2015
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)