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UPD75P238 Datasheet(PDF) 12 Page - NEC

Part # UPD75P238
Description  4-BIT SINGLE CHIP MICROCOMPUTER
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD75P238 Datasheet(HTML) 12 Page - NEC

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12
µPD75P238
Pin
Recommended Connection
P23/BUZ
P40 to P43
P50 to P53
P60 to P63
P70 to P73
P80 to PPO
P81 to SCK1
P30 to P33
P22/PCL
P21
P20/PTO0
P13/TI0
P10/INT0 to P12/INT2
P03/SI1/SB1
P02/SO0/SB0
P00/INT4
P01/SCK0
P82/SO1
P83/SI1
P90/AN4 to P93/AN7
Connect to VSS.
Connect to VSS or VDD.
Connect to VSS.
Input state
:
Connect to VSS or VDD.
Output state :
Leave open.
Connect to VSS or VDD.
Connect to VSS.
1.4
DISPOSITION OF UNUSED PIN
Table 1-2 Recommended Commection of Unused Pins (1/2)


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