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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)： | 17/20頁 |
| 文件大?。?/td> | 150K |
| 代理商： | S3C8849 |
S3C8847/C8849/P8849
ELECTRICAL DATA
15-7
Table 15-7. Main Oscillator Clock Stabilization Time
(T
A
= – 20
°
C + 85
°
C, V
DD
= 4.5 V to 5.5 V)
Oscillator
Symbol
Crystal
–
Test Condition
Min
–
Typ
–
Max
20
Unit
ms
V
DD
= 4.5 V to 6.0 V
(Oscillation stabilization occurs when
V
DD
is equal to the minimum oscillator
voltage range.)
X
IN
input High and Low level width
(t
XH
, t
XL
)
Normal operation
Ceramic
10
External Clock
65
–
100
ns
Release Signal
Setup Time
Oscillation
Stabilization
Wait Time
(1)
t
SREL
–
1000
–
ns
t
WAIT
CPU clock = 8 MHz; Stop mode
released by
RESET
–
8.3
–
ms
CPU clock = 8 MHz; Stop mode
released by an interrupt
(2)
NOTES
:
1.
Oscillation stabilization time is the time required for the CPU clock to return to its normal oscillation frequency after a
power-on occurs, or when Stop mode is released.
The oscillation stabilization interval is determined by the basic timer (BT) input clock setting.
2.
Table 15-8. A/D Converter Electrical Characteristics
(T
A
= – 20
°
C to + 85
°
C, V
DD
= 4.5 V to 5.5 V, V
SS
= 0 V)
Parameter
Symbol
Absolute Accuracy
(1)
Conversion Time
(2)
t
CON
Conditions
CPU clock = 8 MHz
Min
–
Typ
–
Max
±
0.5
Unit
LSB
–
t
CPU
×
25
(3)
–
μs
Analog Input Voltage
V
IAN
R
AN
–
V
SS
2
–
V
DD
–
V
Analog Input
Impedance
–
M
NOTES
:
1.
2.
3.
Excluding quantization error, absolute accuracy values are within ± 1/2 LSB.
'Conversion time' is the time required from the moment a conversion operation starts until it ends.
The unit t
CPU
means one CPU clock period.
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