w78c032c Winbond Electronics Corp America, w78c032c Datasheet - Page 14

• Manufacturer Part Number: w78c032c
• Description: 8-bit Mcu Series 80c51-based
• Manufacturer: Winbond Electronics Corp America

8. TYPICAL APPLICATION CIRCUIT
8.1
Note: C1, C2, R components refer to Figure A.
8.2 K
V
CC
Using External Program Memory and Crystal
10 u
C1
CRYSTAL
CRYSTAL
16 MHz
24 MHz
33 MHz
40 MHz
C2
Above table shows the reference values for crystal applications.
R
12
13
14
15
19
18
31
9
8
7
1
2
3
4
5
6
W78C32C/W78C032C
XTAL2
XTAL1
RST
INT1
T0
T1
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
INT0
EA
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
TXD
RXD
ALE
WR
RD
36
35
34
39
38
37
33
32
21
22
23
24
25
26
27
28
17
16
11
10
29
30
30P
15P
10P
Figure A
AD1
AD2
AD3
AD4
AD5
AD6
AD0
AD7
C1
5P
A9
A10
A11
A12
A15
A13
A14
- 14 -
A8
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD0
GND
13
14
17
18
11
4
7
8
3
1
74LS373
D0
D1
D2
D3
D4
D5
D6
D7
G
OC
W78C32C/W78C032C
Q0
Q1
Q2
Q3
Q4 12
Q5 15
Q6 16
Q7 19
2
5
6
9
30P
15P
10P
C2
5P
A0
A1
A2
A3
A4
A5
A6
A7
GND
A10
A11
A12
A13
A14
A15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
27
20
22
10
25
24
21
23
26
2
9
8
7
6
5
4
1
3
27512
OE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE
O0
O1
O2
O3
O4
O5
O6
O7
6.8K
6.8K
R
-
-
11
12
13
15
16
17
18
19
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7