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W78E51B-40 Datasheet(PDF) 2 Page - Winbond

Part # W78E51B-40
Description  8-BIT MTP MICROCONTROLLER
Download  23 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W78E51B-40 Datasheet(HTML) 2 Page - Winbond

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Preliminary W78E51B
- 2 -
PIN CONFIGURATIONS
VDD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
39
40
34
35
36
37
38
30
31
32
33
26
27
28
29
21
22
23
24
25
P0.0, AD0
P0.1, AD1
P0.2, AD2
P0.3, AD3
P0.4, AD4
P0.5, AD5
P0.6, AD6
P0.7, AD7
EA
ALE
PSEN
P2.5, A13
P2.6, A14
P2.7, A15
P2.0, A8
P2.1, A9
P2.2, A10
P2.3, A11
P2.4, A12
P1.0
40-Pin DIP (W78E51B)
P1.2
P1.3
P1.4
P1.5
P1.6
RXD, P3.0
TXD, P3.1
P1.7
RST
INT0, P3.2
INT1, P3.3
T0, P3.4
T1, P3.5
WR, P3.6
RD, P3.7
XTAL1
XTAL2
VSS
P1.1
44-Pin PLCC (W78E51BP)
44-Pin QFP (W78E51BF)
34
40 39 38 37 36 35
44 43 42 41
33
32
31
30
29
28
27
26
25
24
23
P0.4, AD4
P0.5, AD5
P0.6, AD6
P0.7, AD7
EA
ALE
PSEN
P2.7, A15
P2.6, A14
P2.5, A13
22
21
20
19
18
17
16
15
14
13
12
11
4
3
2
1
8
7
6
5
10
9
P1.5
P1.6
P1.7
RST
RXD, P3.0
TXD, P3.1
INT0, P3.2
INT1, P3.3
T0, P3.4
T1, P3.5
X
T
A
L
1
V
S
S
P
2
.
4
,
A
1
2
P
2
.
3
,
A
1
1
P
2
.
2
,
A
1
0
P
2
.
1
,
A
9
P
2
.
0
,
A
8
X
T
A
L
2
P
3
.
7
,
/
R
D
P
3
.
6
,
/
W
R
A
D
3
,
P
0
.
3
P
1
.
0
P
1
.
2
V
D
D
A
D
2
,
P
0
.
2
A
D
1
,
P
0
.
1
A
D
0
,
P
0
.
0
P
1
.
1
P
1
.
3
P
1
.
4
40
2 1 44 43 42 41
6 5 4 3
39
38
37
36
35
34
33
32
31
30
29
P0.4, AD4
P0.5, AD5
P0.6, AD6
P0.7, AD7
EA
ALE
PSEN
P2.7, A15
P2.6, A14
P2.5, A13
28
27
26
25
24
23
22
21
20
19
18
17
10
9
8
7
14
13
12
11
16
15
P1.5
P1.6
P1.7
RST
RXD, P3.0
TXD, P3.1
INT0, P3.2
INT1, P3.3
T0, P3.4
T1, P3.5
A
D
3
,
P
0
.
3
P
1
.
0
P
1
.
2
V
A
D
2
,
P
0
.
2
A
D
1
,
P
0
.
1
A
D
0
,
P
0
.
0
P
1
.
1
P
1
.
3
P
1
.
4
X
T
A
L
1
V
S
S
P
2
.
4
,
A
1
2
P
2
.
3
,
A
1
1
P
2
.
2
,
A
1
0
P
2
.
1
,
A
9
P
2
.
0
,
A
8
X
T
A
L
2
P
3
.
7
,
/
R
D
P
3
.
6
,
/
W
R
P
4
.
0
/
I
N
T
3
,
P
4
.
2
P4.1
P4.1
P
4
.
0
INT2, P4.3
INT2, P4.3
/
I
N
T
3
,
P
4
.
2
D
D


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