CHAPTER 2 PIN FUNCTIONS
User’s Manual U18438EJ2V0UD
14
2.3 Pin I/O Circuits and Recommended Connection of Unused Pins
Table 2-2 shows the types of pin I/O circuits and the recommended connections of unused pins.
See
Figure 2-1
for the configuration of the I/O circuit of each type.
Table 2-2. Pin I/O Circuit Types
Pin Name
I/O Circuit Type
I/O
Recommended Connection of Unused Pins
LCLK
2-U
Independently connect to LV
DD
or LV
SS
via a resistor.
SCL 2-G
Input
SDA 13-R
I/O
Be sure to pull up externally.
S0 to S35, S36 to S39
Note
17
COM0 to COM3
18
Output
V
LC0
to V
LC2
CAPH, CAPL
−
−
Leave open.
RESET 2 Input
−
IC
−
−
Connect directly to LV
SS
.
Note
64-pin product only.