PCA9701 gpi equivalent, 16-bit/8-bit gpi.
* 16 general purpose input ports (PCA9701) or 8 general purpose input ports (PCA9702)
* 18 V tolerant input ports with 100 k external series resistor
* Input.
Higher voltages can be tolerated on the inputs depending on the series resistor used to limit the input current.
With b.
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