參數(shù)資料
型號: MB90437L
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller
中文描述: 16位微控制器專有
文件頁數(shù): 33/58頁
文件大?。?/td> 629K
代理商: MB90437L
MB90435 Series
33
4.
AC Characteristics
(1) Clock Timing
(MB90F438L (S) /437L (S) /438L (S) : V
CC
=
3.5 V to 5.5 V, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
105
°
C)
(MB90F439 (S) /439 (S) /V540G : V
CC
=
5.0 V
±
10
%
, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
105
°
C)
Value
Parameter
Symbol
Pin name
Units
Remarks
Min
Typ
Max
Oscillation frequency
f
C
X0, X1
3
16
MHz V
CC
=
5.0 V
±
10
%
V
CC
<
4.5 (MB90F438L (S) /
437L (S) /438L (S) )
3
5
MHz
f
CL
X0A, X1A
62.5
32.768
333
kHz
Oscillation cycle time
t
CYL
X0, X1
ns
V
CC
=
5.0 V
±
10
%
V
CC
<
4.5 (MB90F438L (S) /
437L (S) /438L (S) )
200
333
ns
t
LCYL
X0A, X1A
10
30.5
15.2
μ
s
ns
μ
s
Input clock pulse width
P
WH
, P
WL
X0
Duty ratio is about 30
%
to
70
%
.
P
WLH
, P
WLL
X0A
Input clock rise and fall
time
t
CR
, t
CF
X0
5
ns
When using external clock
Machine clock frequency
f
CP
1.5
62.5
16
666
MHz When using main clock
f
LCP
8.192
122.1
kHz
When using sub-clock
Machine clock cycle time
t
CP
ns
μ
s
When using main clock
t
LCP
When using sub-clock
X0
t
CYL
t
CF
t
CR
0.8 V
CC
0.2 V
CC
P
WH
P
WL
X0A
t
LCYL
t
CF
t
CR
0.8 V
CC
0.2 V
CC
P
WLH
P
WLL
Clock Timing
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