#SCPS133IMG1020 shows an application in which the TCA6416A can be used.
A. Device address configured as
0100000 for this example.
B. P00 and P02–P10 are configured as
inputs.
C. P01 and P11–P17 are configured as
outputs.
D. Pin numbers shown are for the PW
package.
E. Resistors are required for inputs
(on P port) that may float. If a driver to an input will never let the input
float, a resistor is not needed. Outputs (in the P port) do not need pullup
resistors.