W78E516B-24 Winbond, W78E516B-24 Datasheet - Page 19

• Manufacturer Part Number: W78E516B-24
• Description: 8-BIT MICROCONTROLLER
• Manufacturer: Winbond

TYPICAL APPLICATION CIRCUIT
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
32 MHz
40 MHz
CRYSTAL
6 MHz
12
13
14
15
19
18
31
9
7
8
1
2
3
4
5
6
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
RXD
TXD
ALE
WR
RD
47P
30P
15P
10P
5P
36
35
39
38
37
34
33
32
21
22
23
24
25
26
27
28
17
11
10
16
30
29
C1
Figure A
AD1
AD3
AD2
AD4
AD5
AD6
AD7
AD0
A10
A11
A12
A9
A13
A14
A15
A8
- 19 -
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD0
GND
13
14
17
18
11
4
7
8
3
1
74LS373
10P
10P
D0
D1
D2
D3
D4
D5
D6
D7
OC
G
30P
47P
5P
C2
Publication Release Date: February 2000
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
A10
A11
A12
A13
A14
A15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
6.8K
4.7K
R
27
10
25
24
21
23
26
20
22
-
-
-
2
9
8
7
6
5
4
1
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
Revision A3
11
12
13
15
16
17
18
19
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7