Panasonic MN101C77C - Manual (Page 48)

Chapter 1 Overview
I - 30 Precautions
„ Unused pins (for I/O)
Unused I/O pins should be set according to pins' condition at reset. If the output is high impedance (Pch
/ Nch transistor : output off) at reset, to stabilize input, set 10 k
Ω
to 100 k
Ω
resistor to be pull-up or pull-
down. If the output is on at reset, set them open.
Figure 1-6-3 Unused I/O pins (high impedance output at reset)
Input
Data
Output OFF
10 k
Ω
to 100 k
Ω
Output control
Input
Data
Output OFF
Output control
10 k
Ω
to 100 k
Ω
Input
Data
Nch
Output OFF
10 k Ω to 100 k Ω
Input
Data
Nch
Output OFF
10 k Ω to 100 k Ω