w78l812a Winbond Electronics Corp America, w78l812a Datasheet - Page 4
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w78l812a
Manufacturer Part Number
w78l812a
Description
8-bit Mcu Series 80c51-based
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W78L812A.pdf
(31 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
w78l812a24DL
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Company:
Part Number:
w78l812a24FL
Manufacturer:
Nuvoton Technology Corporation of America
Quantity:
10 000
Part Number:
w78l812a24FL
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Company:
Part Number:
w78l812a24PL
Manufacturer:
Nuvoton Technology Corporation of America
Quantity:
10 000
Part Number:
w78l812a24PL
Manufacturer:
WINBOND/华邦
Quantity:
20 000
3. PIN CONFIGURATIONS
A14CTRL,INT0, P3.2
A13CTRL,TXD, P3.1
OECTRL,INT1, P3.3
A9CTRL,RXD, P3.0
INT7,P1.5
INT8,P1.6
INT9,P1.7
T0, P3.4
T1, P3.5
P4.3
RST
44-Pin PLCC
7
8
9
10
11
12
13
14
15
16
17
N
18
,
T
6
I
P
1
.
4
P
3
.
6
,
/
W
R
6 5 4 3
C
E
, ,
/
19
N
T
5
,
I
P
1
.
3
P
3
.
7
,
/
R
D
/
O
E
20
40-Pin DIP
N
T
,
4
P
1
.
2
X
T
A
L
2
I
21
N
T
,
3
E
X
,
P
1
.
1
X
T
A
L
1
I
T
2
22
N
T
,
I
2
T
2
,
P
1
.
0
V
S
S
2 1 44 43 42 41
23
P
4
.
2
P
4
.
0
24
V
D
D
P
2
.
0
,
A
8
25
P
2
.
1
,
A
9
A
D
0
,
P
0
.
0
A14CTRL,INT0, P3.2
A13CTR,LTXD, P3.1
OECTRL,INT1, P3.3
A9CTRL,RXD, P3.0
26
P
2
.
2
,
A
1
0
A
D
1
,
P
0
.
1
INT3,T2EX, P1.1
27
P
2
.
3
,
A
1
1
A
D
2
,
P
0
.
2
INT2,,T2, P1.0
CE,WR, P3.6
OE,RD, P3.7
28
40
A
D
3
,
P
0
.
3
P
2
.
4
,
A
1
2
39
38
37
36
35
34
33
32
31
30
29
INT4,P1.2
INT5,P1.3
INT6,P1.4
INT7,P1.5
INT8,P1.6
INT9,P1.7
T0, P3.4
T1, P3.5
XTAL2
XTAL1
VSS
RST
P4.1
P0.4, AD4
P0.5, AD5
P0.6, AD6
P0.7, AD7
EA,VPP
ALE
PSEN,P4.6
P2.7, A15
P2.6, A14
P2.5, A13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
- 4 -
A14CTRL,INT0, P3.2
A13CTRL,TXD, P3.1
OECTRL,INT1, P3.3
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
A9CTRL,RXD, P3.0
VDD
P0.1, AD1
P0.2, AD2
P0.3, AD3
P0.4, AD4
P0.5, AD5
P0.6, AD6
P0.7, AD7
EA,VPP
ALE
PSEN,P4.6
P2.7, A15
P2.6, A14
P2.4, A12
P2.3, A11
P2.2, A10
P2.1, A9
P2.0, A8
P0.0, AD0
P2.5, A13
INT7,P1.5
INT8,P1.6
INT9,P1.7
T0, P3.4
T1, P3.5
44-Pin PQFP
W78LE812/W78L812A
P4.3
RST
1
2
3
4
5
6
7
8
9
10
11
12
N
,
I
T
6
44 43 42 41
P
3
.
6
,
/
W
R
P
1
.
4
C
E
, ,
/
13
N
T
,
P
3
.
7
,
/
R
D
/
O
I
5
E
P
1
.
3
14
X
T
A
L
2
N
T
,
P
1
.
2
I
4
15
X
T
A
L
1
N
T
,
I
3
T
2
E
X
,
P
1
.
1
16
40 39 38 37 36 35
N
T
2
,
V
S
S
I
T
2
,
P
1
.
0
17
P
4
.
0
P
4
.
2
18
P
2
.
0
,
A
8
V
D
D
19
P
2
.
1
,
A
9
A
D
0
,
P
0
.
0
20
P
2
.
2
,
A
1
0
A
D
1
,
P
0
.
1
21
P
2
.
3
,
A
1
1
A
D
2
,
P
0
.
2
22
34
33
32
31
30
29
28
27
26
25
24
23
P
2
.
4
,
A
1
2
A
D
3
,
P
0
.
3
PSEN,P4.6
P4.1
P0.4, AD4
P0.5, AD5
P0.6, AD6
P0.7, AD7
EA,VPP
ALE
P2.7, A15
P2.6, A14
P2.5, A13