µ
PD75P3116
13
Data Sheet U11369EJ3V0DS
3.4 Recommended Connection of Unused Pins
Table 3-1. List of Unused Pin Connections
Pin
Recommended Connection
P00/INT4
Connect to Vss or V
DD
.
P01/SCK
Input:
Independently connect to Vss or V
DD
via a resistor.
P02/SO/SB0
Output: Leave open.
P03/SI/SB1
Connect to Vss.
P10/INT0 and P11/INT1
Connect to Vss or V
DD
.
P12/TI1/TI2/INT2
P13/TI0
P20/PTO0
Input:
Independently connect to Vss or V
DD
via a resistor.
P21/PTO1
Output: Leave open.
P22/PTO2/PCL
P23/BUZ
P30/LCDCL/MD0
P31/SYNC/MD1
P32/MD2
P33/MD3
P50/D4 to P53/D7
Input:
Connect to Vss.
Output: Connect to Vss.
P60/KR0/D0 to P63/KR3/D3
Input:
Independently connect to Vss or V
DD
via a resistor.
Output: Leave open.
S0 to S15
Leave open.
COM0 to COM3
S16/P93 to S19/P90
Input:
Independently connect to Vss or V
DD
via a resistor.
S20/P83 to S23/P80
Output: Leave open.
V
LC0
to V
LC2
Connect to Vss.
BIAS
Connect to Vss only when none of V
LC0
, V
LC1
or V
LC2
is used.
In other cases, leave open.
XT1
Note
Connect to Vss.
XT2
Note
Leave open.
V
PP
Always connect to V
DD
directly.
Note
When the subsystem clock is not used, select SOS.0 = 1 (on-chip feedback
resistor not used).