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參數(shù)資料
| 型號： | S3C8478XX-QZ |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | 10 X 10 MM, QFP-44 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大小： | 165K |
| 代理商： | S3C8478XX-QZ |
ELECTRICAL DATA
S3C8478/C8475/P8475
14-6
CPU Clock
2 MHz
Main Oscillator Frequency
(Divided by 4)
1
2
3
4
5
6
7
Supply Voltage (V)
CPU clock = 1/n x oscillator frequency (n = 4, 8 or 64)
4 MHz
6 MHz
8 MHz
10 MHz
12 MHz
1.8 V 2.7 V
Figure 14-2. Operating Voltage Range
Table 14-5. Oscillation Stabilization Time
(T
A = – 40
°C + 85 °C, V
DD = 1.8 V to 5.5 V)
Oscillator
Test Condition
Min
Typ
Max
Unit
Main Crystal
f
OSC > 1.0 kHz;
–
20
ms
Main Ceramic
Oscillation stabilization occurs when V
DD is equal
to the minimum oscillator voltage range.
–
10
ms
External Clock
(Main System)
X
IN input High and Low width (tXH, tXL)
25
–
500
ns
Oscillator
t
WAIT when released by a reset
(1)
–
216/f
OSC
–
ms
Stabilization
Wait Time
t
WAIT when released by an interrupt
(2)
–
ms
NOTES:
1.
fOSC is the oscillator frequency.
2.
The duration of the oscillator stabilization wait time, tWAIT, when it is released by an interrupt is determined by the
settings in the basic timer control register, BTCON.
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