UPD75518 NEC, UPD75518 Datasheet - Page 13

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

1.4 CONNECTION OF UNUSED PINS
P00/INT4
P01/SCK0
P02/SO0/SB0
P03/SI1/SB1
P10/INT0-P12/INT2
P13/TI0
P20/PTO0
P21
P22/PCL
P23/BUZ
P30-P33
P40-P43
P50-P53
P60/KR0-P63/KR3
P70/KR4-P73/KR7
P80/PPO
P81/SCK1
P82/SO1
P83/SI1
P90-P93
P100-P103
P110-P113
P120-P123
P130-P133
P140-P143
P150/AN4-P153/AN7
AN0-AN3
XT1
XT2
AV
AV
IC
REF
SS
Pin name
Table 1-1 Recommended Connection of Unused Pins
To be connected to V
To be connected to V
To be connected to V
Input state : To be connected to V
Output state : To be left open
To be connected to V
Input state : To be connected to V
Output state : To be left open
To be connected to V
To be connected to V
To be left open
To be connected to V
Recommended connection
SS
SS
SS
SS
SS
SS
SS
or V
or V
or V
DD
DD
DD
SS
SS
or V
or V
DD
DD
PD75518(A)
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