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參數(shù)資料
| 型號： | S3C8849 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | SAM87 family of 8-bit single-chip CMOS microcontrollers |
| 中文描述： | SAM87家庭的8位單芯片CMOS微控制器 |
| 文件頁數(shù)： | 16/20頁 |
| 文件大小： | 150K |
| 代理商： | S3C8849 |
ELECTRICAL DATA
S3C8847/C8849/P8849
15-6
Table 15-6. Main Oscillator and L-C Oscillator Frequency
(T
A
= – 20
°
C + 85
°
C, V
DD
= 4.5 V to 5.5 V)
Oscillator
Crystal
Clock Circuit
Conditions
Min
5
Typ
6
Max
8
Unit
MHz
C2
C1
X
IN
X
OUT
OSD block active
OSD block inactive
OSD block active
0.5
5
6
6
8
8
Ceramic
C2
C1
X
IN
X
OUT
MHz
OSD block inactive
OSD block active
0.5
5
6
6
8
8
External Clock
X
IN
X
OUT
MHz
OSD block inactive
Recommend value;
C1 = C2 = 20 pF
0.5
5
6
8
8
L-C Oscillator
C2
C1
OSC
IN
OSC
OUT
6.5
MHz
CPU Clock Frequency
–
0.032
6.0
8
MHz
X
IN
t
XL
t
XH
2.7 V
1.0 V
1 / f
OSC
Figure 15-3. Clock Timing Measurement Points for X
IN
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