W78C438C Datasheet, PDF (3/16 Pages) Winbond – 8-BIT MICROCONTROLLER

Pin Configurations, continued
W78C438C
NC
NC
NC
NC
P1.5
P1.6
P1.7
RESET
P8.0
P8.1
P8.2
P8.3
P8.4
P8.5
P8.6
P8.7
INT3
INT2
RXD, P3.0
VDD
TXD, P3.1
INT0, P3.2
INT1, P3.3
T0, P3.4
T1, P3.5
WR, P3.6
NC
NC
NC
NC
T
2
ET
X2
,,
DDDDDDDD
P P PP PP PP P PP PP
PPPP
N
C
1
.
4
1
.
3
11
..
21
1
.
0
4
.
7
4
.
6
4
.
5
4
.
4
4
.
3
4
.
2
4
.
1
4
.
0
V0
D.
D0
0
.
1
0
.
2
0
.
3
N
C
1 9999999999888888888
1
0
0
98
76
54
3
210
9
8
76
54
3
2
1
80
2
79
3
78
4
77
5
76
6
75
7
74
8
73
9
72
10
71
11
70
12
69
13
68
14
67
15
W78C438CF
66
16
65
17
100-pin PQFP
64
18
63
19
62
20
61
21
60
22
59
23
58
24
57
25
56
26
55
27
54
28
53
29
52
30
51
3 3 33 3 3 3 3 34 4 4 4 4 4 4 4 4 4 5
123 45 6 7890 123 45 6 789 0
PX X VN A AAA AA A A A AA _{A P PP}
3. T
7, _A
/
R
D
L
2
T
A
L
1
SC
S
P
7
.
3
,
PPP
777
...
210
,,,
PP
66
..
76
P
6
.
5
P
6
.
4
P
6
.
3
PP
66
..
21
P2
6. .
00
2
.
1
2
.
2
/ ///
C CCC
S SSS
3 210
NC
NC
NC
NC
P0.4
P0.5
P0.6
P0.7
EA
AP5.0
AP5.1
AP5.2
AP5.3
AP5.4
AP5.5
AP5.6
AP5.7
V DD
V SS
ALE
PSEN
P2.7
P2.6
P2.5
P2.4
NC
NC
NC
NC
P2.3
Publication Release Date: July 1998
-3-
Revision A1