W78E58B Winbond, W78E58B Datasheet - Page 24

• Manufacturer Part Number: W78E58B
• Description: 8 BIT MICROCONTROLLER
• Manufacturer: Winbond

12. TYPICAL APPLICATION CIRCUITS
Expanded External Program Memory and Crystal
Notes:
1. C1, C2, R components refer to Figure A
2. Crystal layout must get close to XTAL1 and XTAL2 pins on user's application board.
8.2 K
V
DD
10 u
C1
CRYSTAL
C2
Above table shows the reference values for crystal applications.
R
16 MHz
24 MHz
40MHz
CRYSTAL
12
13
14
15
19
18
31
6 MHz
9
8
2
3
4
5
6
7
1
W78E58B
XTAL2
INT1
T0
XTAL1
RST
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
47P
30P
15P
36
39
38
37
35
34
33
32
21
22
23
24
25
26
27
28
17
16
11
10
5P
29
30
C1
Figure A
AD1
AD2
AD3
AD4
AD5
AD6
AD0
AD7
- 24 -
A9
A10
A11
A12
A13
A14
A15
A8
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD0
GND
13
14
17
18
11
4
7
8
3
1
74LS373
10P
D0
D1
D2
D3
D4
D5
D6
D7
G
OC
30P
47P
5P
C2
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
12
15
16
19
5
6
9
2
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
6.8K
R
10
25
24
21
23
26
27
20
22
-
-
-
2
1
9
8
7
6
5
4
3
27512
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
OE
CE
W78E58B
O0
O1
O2
O3
O4
O5
O6
O7
11
12
13
15
16
17
18
19
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7