BAT32G1x9 user manual | Chapter 2 Pin function
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Rev.1.02
2.4 Unused pin handling
The handling of each unused pin is shown in the following table.
Table2-2 Handling of each unused pin
Pin name
Input/Output
The recommended connection method when not in use
P00
~
P06
Input/Output
Input:
Separately connect
the EV
DD
or
EV
SS
via resistors.
Output:
Set to open circuit.
P10
~
P17
P20
~
P27
Input:
Separately connect
V
DD
or
V
SS
via resistors.
Output:
Set to open circuit.
P30, P31
Input:
Separately connect
the EV
DD
or
EV
SS
via resistors.
Output:
Set to open circuit.
P40
Input:
EV
DD
is connected separately via resistors
or opened.
Output:
Set to open circuit.
P41
~
P47
Input:
Separately connect
the EV
DD
or
EV
SS
via resistors.
Output:
Set to open circuit.
P50
~
P57
P60
~
P63
Input:
Separately connect
the EV
DD
or
EV
SS
via resistors.
Output: Set the output latch of the port
to "0"
and
set it to open, or set the output latch of
the port to
"1"
and
connect
the EV
DD
or
via resistors alone
EV
SS
。
P63
~
P67
Input:
Separately connect
the EV
DD
or
EV
SS
via resistors.
Output:
Set to open circuit.
P70
~
P77
P80
~
P87
P100
~
P102
P110
~
P111
P120
P121
~
P124
input
Separately connect V
DD
or
V
SS
via resistors.
P130
output
Set to open circuit.
P136
Input/Output
Input:
Separately connect
the EV
DD
or
EV
SS
via resistors. (64,48-pin products).
Input:
Separately connect
V
DD
or
V
SS
via resistors. (80-pin product, BATG179xx-
A series).
Output:
Set to open circuit.
P137
Input:
V
DD
is connected separately via resistors
or opened.
Output:
Set to open circuit.
P140
~
P147
Input:
Separately connect
the EV
DD
or
EV
SS
via resistors.
Output:
Set to open circuit.
P150
~
P156
Input/Output
Input:
Separately connect
V
DD
or
V
SS
via resistors.
Output:
Set to open circuit.
RESETB
input
Connect V
DD
directly or
via resistors.
Note For products that do not have EV
DD
,
EV
SS
pins, EV
DD
must be
replaced with
V
DD
and EVss must be replaced with
V
SS
.