参数资料
型号: MB90487PF
厂商: FUJITSU LTD
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP100
封装: PLASTIC, QFP-100
文件页数: 96/113页
文件大小: 1195K
代理商: MB90487PF
MB90480/485 Series
83
4.
AC Characteristics
(1) Clock Timing Standards
(VSS
= 0.0 V, TA = 40 °C to +85 °C)
*1 : Be careful of the operating voltage.
*2 : Duty raito should be 50
% ± 3 %.
Parameter
Sym-
bol
Pinname
Condi-
tion
Value
Unit
Remarks
Min
Typ
Max
Clock frequency
FCH
X0, X1
3
25
MHz
External crystal
oscillator
3
50
External clock input
4
25
1 multiplied PLL
3
12.5
2 multiplied PLL
3
6.66
3 multiplied PLL
3
6.25
4 multiplied PLL
3
4.16
6 multiplied PLL
3
3.12
8 multiplied PLL
FCL
X0A, X1A
32.768
kHz
Clock cycle time
tC
X0, X1
20
333
ns
*1
tCL
X0A, X1A
30.5
s
Input clock pulse width
PWH
PWL
X0
5
ns
PWLH
PWLL
X0A
15.2
s*2
Input clock rise, fall time
tcr
tcf
X0
5
ns
With external clock
Internal operating clock
frequency
fCP
1.5
25
MHz *1
fCPL
8.192
kHz
Internal operating clock
cycle time
tCP
40.0
666
ns
*1
tCPL
122.1
s
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