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UPD75517 Datasheet(PDF) 13 Page - NEC

Part # UPD75517
Description  4 BIT SINGLE-CHIP MICROCOMPUTER
PDF  180 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD75517 Datasheet(HTML) 13 Page - NEC

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µPD75517(A)
1.4
CONNECTION OF UNUSED PINS
Table 1-1
Recommended Connection of Unused Pins
To be connected to VSS
To be connected to VSS or VDD
To be connected to VSS
Input state
: To be connected to VSS or VDD
Output state : To be left open
To be connected to VSS or VDD
Input state
: To be connected to VSS or VDD
Output state : To be left open
To be connected to VSS
To be connected to VSS or VDD
To be left open
To be connected to VSS
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
AVREF
AVSS
IC
Pin name
Recommended connection



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