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參數資料
型號: W79E648
廠商: WINBOND ELECTRONICS CORP
英文描述: Fast 8051 Compatible microcontroller with a redesigned Processor
中文描述: 快速8051兼容微控制器重新設計的處理器
文件頁數: 72/80頁
文件大小: 407K
代理商: W79E648
Preliminary W79E648
- 72 -
18. TYPICAL APPLICATION CIRCUITS
Expanded External Program Memory and Crystal
AD0
AD1
AD6
A0
A1
A2
A3
A4
A5
A6
A7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A14
A15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A12
CE
OE
27512
10
9
8
7
6
5
4
3
25
23
2
26
27
1
20
22
O0
O1
O2
O3
O4
O5
O6
O7
11
12
13
15
16
17
18
19
AD0
AD1
AD6
GND
D0
D1
D2
D3
D4
D5
D6
D7
3
4
7
8
1
11
Q0
2
5
6
9
12
15
16
19
OC
G
74F373
AD0
AD1
EA
XTAL1
31
19
XTAL2
18
RST
9
INT0
INT1
T0
T1
P1.0
P1.3
12
14
1
2
3
4
5
6
7
8
39
38
37
36
35
34
33
32
21
22
23
24
25
26
27
28
17
16
29
30
11
10
WR
P0.0
P0.4
P2.0
RD
PALE
TXD
RXD
10 u
8.2 K
CC
CRYSTAL
C1
C2
R
A8
A9
A13
A14
GND
V
CC
V
Figure A
CRYSTAL
C1
C2
R
16 MHz
20P
20P
-
24 MHz
12P
12P
-
33 MHz
10P
10P
3.3K
40 MHz
1P
1P
3.3K
The above table shows the reference values for crystal applications.
Note: C1, C2, R components refer to Figure A.
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