36
Pin No.
Pin Name
I/O
Function
95
KEY4
I
Key input terminal (A/D input) Not used
96
AVSS
—
Ground terminal (for A/D conversion)
97
MODE. SW
I
Mode switch input terminal S807 (MODE key input)
98
VREF
I
Reference voltage (+5V) input terminal (for A/D conversion)
99
AVCC
—
Power supply terminal (+5V) (for A/D conversion)
100
AMP ON
O
Amplifier on/off selection signal output terminal