Figure 9-1 shows an
application in which the PCA9554 can be used.
Device address is configured as
0100000 for this example.
P0, P2, and P3 are configured as
P1, P4, and P5 are configured as
P6 and P7 are not used and and
have internal 100-kΩ pullup resistors to protect them from floating.
Figure 9-1 Typical