Panasonic MN101C77C, F77G user manual Unused I/O pins high impedance output at reset

Chapter 1 Overview

„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 kΩ to 100 kΩ resistor to be pull-up or pull- down. If the output is on at reset, set them open.

Output control

Output OFF

Data

Input

Output OFF

Nch

Data

Output control

10 kΩ to 100 kΩ

Output OFF

Data

10 kΩ to 100 kΩ

Input

Output OFF

10 kΩ to 100 kΩ	Nch
	Data

10 kΩ to 100 kΩ

Input Input

Figure 1-6-3 Unused I/O pins (high impedance output at reset)

I - 30 Precautions