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UPD75P238 Datasheet(PDF) 2 Page - NEC

Part # UPD75P238
Description  4-BIT SINGLE CHIP MICROCOMPUTER
PDF  50 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD75P238 Datasheet(HTML) 2 Page - NEC

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µPD75P238
PIN CONFIGURATION (TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20
12
S20/P110
S21/P111
S22/P112
S23/P113
S0/P120
92919089
87 868584 8382 81807978777675747372
68
66
65
64
63
62
61
60
59
58
57
55
54
53
52
51
50
48
56
24
AN0
AVREF
AVDD
VDD
VPP
X2
X1
IC
XT2
XT1
VSS
S16/P100
S17/P101
S18/P102
S19/P103
P42
P43
VSS
P50
P51
P52
P53
P60
P61
P62
P63
P70
P71
P72
P73
P80/PPO
P81/SCK1
P82/SO1
P83/SI1
VDD
21
22
23
44
25262728 293031 3233 34353637383940414243
46
45
47
67
69
70
49
71
S1/P121
S2/P122
S3/P123
P41
P40
P32/MD2
P33/MD3
88
93
94
Remarks
IC (Internally Connected) pins should be connected directly to VSS.
Note
Ensure that power is supplied to the VDD and VSS pins (pins 4, 11, 30, 48, and 65).



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