W78E52B-40 Winbond, W78E52B-40 Datasheet - Page 20

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W78E52B-40

Manufacturer Part Number
W78E52B-40
Description
8-BIT MTP MICROCONTROLLER
Manufacturer
Winbond
Datasheet

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Typical Application Circuits, continued
Expanded External Data Memory and Oscillator
8.2 K
V
DD
10 u
OSCILLATOR
V
DD
19
18
13
14
15
31
12
9
1
2
3
4
6
7
8
5
W78E52B
EA
RST
T0
T1
XTAL1
XTAL2
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
INT0
INT1
PSEN
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
RXD
TXD
ALE
WR
RD
37
36
33
32
39
38
35
34
22
23
24
25
26
28
21
27
17
16
29
30
11
10
Figure B
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
- 20 -
A10
A11
A12
A13
A14
A8
A9
AD7
AD0
AD1
AD2
AD3
AD4
AD5
AD6
GND
14
18
13
17
11
3
4
7
8
1
OC
G
D0
D1
D2
D3
D4
D5
D6
D7
74373
Preliminary W78E52B
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
12
15
16
19
2
5
6
9
A0
A1
A2
A3
A4
A5
A6
A7
GND
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
25
24
21
23
26
10
22
20
27
9
8
7
6
5
4
3
2
1
20256
OE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
CE
WR
D0
D1
D2
D3
D4
D5
D6
D7
11
12
13
15
16
17
18
19
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7

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