w79e532 Winbond Electronics Corp America, w79e532 Datasheet - Page 68

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w79e532

Manufacturer Part Number
w79e532
Description
8-bit Microcontroller
Manufacturer
Winbond Electronics Corp America
Datasheet

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19. TYPICAL APPLICATION CIRCUITS
Expanded External Program Memory and Crystal
Note: C1, C2, R components refer to Figure A.
Expanded External Data Memory and Oscillator
Vcc
Vcc
10u
8.2K
10u
8.2K
C1
CRY STAL
OSCILLATOR
C2
The above table shows the reference values for crystal applications.
Vcc
Vcc
R
EA/VP
X1
X2
RESET
INT0
INT1
T0
T1
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
CRYSTAL
16 MHz
24 MHz
33 MHz
40 MHz
EA/VP
X1
X2
RESET
INT0
INT1
T0
T1
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
ALE/P
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
WR
TXD
RD
ALE/P
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
WR
TXD
RD
Figure A
Figure B
- 68 -
20P
12P
10P
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
C1
1P
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
13
14
17
18
11
13
14
17
18
11
3
4
7
8
1
3
4
7
8
1
20P
12P
10P
D0
D1
D2
D3
D4
D5
D6
D7
OC
G
74F373
C2
1P
D0
D1
D2
D3
D4
D5
D6
D7
OC
G
74F373
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
W79E532/W79L532
12
15
16
19
12
15
16
19
2
5
6
9
2
5
6
9
A0
A1
A2
A3
A4
A5
A6
A7
3.3K
3.3K
A0
A1
A2
A3
A4
A5
A6
A7
R
-
-
Vcc
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
10
25
24
21
23
26
27
20
22
9
8
7
6
5
4
3
2
1
10
25
24
21
23
26
22
27
20
28
9
8
7
6
5
4
3
2
1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE
OE
27512
20256
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
OE
WE
CS
VCC
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
O0
O1
O2
O3
O4
O5
O6
O7
11
12
13
15
16
17
18
19
11
12
13
15
16
17
18
19
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7

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