参数资料
型号: MB89475PFV
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 12.5 MHz, MICROCONTROLLER, PQFP48
封装: PLASTIC, QFP-48
文件页数: 22/46页
文件大小: 999K
代理商: MB89475PFV
29
MB89470 Series
(3) Clock Timing
(AVSS = VSS = 0.0 V, TA = –40
°C to +85°C)
Parameter
Symbol
Pin
Value
Unit
Remarks
Min.
Typ.
Max.
Clock frequency
FCH
X0, X1
1
12.5
MHz
FCL
X0A, X1A
32.768
kHz
Clock cycle time
tHCYL
X0, X1
80
1000
ns
tLCYL
X0A, X1A
30.5
s
Input clock pulse width
PWH
PWL
X0
20
——
ns
External clock
PWHL
PWLL
X0A
15.2
s
Input clock rising/falling time
tCR
tCF
X0, X0A
——
10
ns
0.2 VCC
0.8 VCC
X0
0.2 VCC
tCR
PWH
tCF
0.8 VCC
0.2 VCC
X0
X1
X0
X1
When a crystal
or
ceramic reasonator is used
When an external clock is used
Open
tHCYL
PWL
FCH
C1
C2
FCH
X0 and X1 Timing and Conditions
Main Clock Conditions
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