M16C62N Datasheet, PDF (150/213 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Programmable I/O Port
Mitsubishi microcomputers
M16C / 62N Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Table 1.18.1. Example connection of unused pins in single-chip mode
Pin name
Connection
Ports P0 to P10
(excluding P85) (Note 1)
After setting for input mode, connect every pin to VSS via a resistor;
or after setting for output mode, leave these pins open.
XOUT (Note 2)
Open
NMI
Connect via resistor to VCC (pull-up)
AVCC
Connect to VCC
AVSS, VREF, BYTE
Connect to VSS
Note 1: P1, P44 to P47, P72 to P75, P91 are not connected to external pins, but are present within the
microcomputer, so set the unused pin processing.
Note 2: With external clock input to XIN pin.
Microcomputer
Port P0 to P10 (except for P85)
(Input mode)
···
(Input mode)
(Output mode)
NMI
XOUT
AVCC
CNVSS (BYTE)
AVSS
VREF
···
Open
Open
VCC
VSS
Note: P1, P44 to P47, P72 to P75, P91 are not connected to external pins.
Figure 1.18.9. Example connection of unused pins
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