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User’s Manual U12697EJ3V0UM
CHAPTER 2 PIN FUNCTIONS
Table 2-1. Types of Pin I/O Circuits and Recommended Connection of Unused Pins (2/2)
Pin Name
I/O Circuit Type
I/O
Recommended Connection of Unused Pins
P120/RTP0 to P127/RTP7
8-K
I/O
Input:
Independently connect to V
SS0
via a resistor.
P130/ANO0, P131/ANO1
12-D
Output: Leave open.
RESET
2-G
Input
—
XT1
16
Connect to V
SS0
.
XT2
—
Leave open.
AV
REF1
—
Connect to V
DD0
.
AV
DD
AV
SS
Connect to V
SS0
.
TEST/V
PP
Note
Connect directly to V
SS0
or pull down. For the pull-down
connection, use of a resistor with a resistance between 470
Ω
and 10 k
Ω
is recommended.
Note
The V
PP
pin is provided only for the
µ
PD78F4225, 78F4225Y.
Remark
Since the type numbers are unified in the 78K Series, they are not always sequential in each product
(not all the circuits are incorporated).