w78e516b Winbond Electronics Corp America, w78e516b Datasheet - Page 28

• Manufacturer Part Number: w78e516b
• Description: 8-bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

9. TYPICAL APPLICATION CIRCUITS
9.1 External Program Memory and Crystal
Notes:
8.2 K
V
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.
DD
10 u
C1
CRYSTAL
16 MHz
24 MHz
32 MHz
40 MHz
CRYSTAL
6 MHz
C2
Above table shows the reference values for crystal applications.
R
12
13
14
15
19
18
31
9
8
2
3
4
5
6
7
1
W78E516B
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
47P
30P
15P
10P
RD
WR
C1
5P
36
35
39
38
37
34
33
32
21
22
23
24
25
26
27
28
17
16
11
10
29
30
Figure A
AD1
AD3
AD2
AD4
AD5
AD6
AD7
AD0
- 28 -
A10
A11
A12
A9
A13
A14
A15
A8
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
GND
13
14
17
18
11
4
7
8
3
1
74LS373
D0
D1
D2
D3
D4
D5
D6
D7
G
OC
Publication Release Date: April 22, 2008
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
10P
47P
30P
10P
5P
C2
12
15
16
19
2
5
6
9
A0
A1
A2
A3
A4
A5
A6
A7
GND
A10
A13
A11
A12
A14
A15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
10
25
24
21
23
26
27
22
20
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
CE
OE
W78E516B
O0
O1
O2
O3
O4
O5
O6
O7
6.8K
4.7K
R
Revision A12
-
-
-
11
12
13
15
16
17
18
19
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7