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Hello,
On the pin descriptions for TCA9555 (page 3), it states A0-A2 should be connected directly to VCC or GND:
The test conditions for the input current parameter (page 14) seems to support this:
However, Figure 15 (page 22) shows a 10 kohm pull-up to VCC for A2, while A1 and A0 are tied directly to ground:
Is a resistor between A0-A2 and VCC required? If not, does including it provide any additional benefit, or potentially introduce any issues?
Thanks,
Jonathan