參數(shù)資料
型號(hào): F497
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller CMOS
中文描述: 16位微控制器專有的CMOS
文件頁(yè)數(shù): 23/40頁(yè)
文件大?。?/td> 484K
代理商: F497
MB90495 Series
MB90495 Series Data Sheet (Advance Information)
23 / 40
FME EMDC June 19, 2000
14. AC CHARACTERISTICS
14.1 Clock Timing
(T
A
= –40 to +85
°
C, V
CC
= 5.0 V 10%, V
SS
= AV
SS
= 0 V)
*: Frequency deviation indicates the maximum frequency difference from the target frequency when using a multiplied clock.
Parameter
Symbol
Pin
Rated Value
Units
Remarks
Min.
Typ.
Max.
Oscillation frequency
f
C
X0, X1
3
16
MHz
f
CL
X0A, X1A
32.768
kHz
Oscillation cycle time
t
HCYL
X0, X1
62.5
333
ns
t
LCYL
X0A, X1A
30.5
μ
s
Frequency deviation with
PLL *
f
5
%
Input clock pulse width
P
WH
, P
WL
X0
10
ns
Duty ratio is about 30 to
70%.
P
WLH
,P
WLL
X0A
15.2
μ
s
Input clock rise and fall
time
t
CR
, t
CF
X0
5
ns
When using external clock
Machine clock frequency
f
CP
1.5
16
MHz
When using main clock
f
LCP
8.192
kHz
When using sub-clock
Machine clock cycle time
t
CP
62.5
666
ns
When using main clock
t
LCP
122.1
μ
s
When using sub-clock
|a|
f
O
+a
Central frequency f
O
–a
f =
×
100%
t
HCYL
P
WH
t
CF
P
WL
t
CR
0.8 V
CC
0.2 V
CC
X0
t
LCYL
P
WLH
t
CF
P
WLL
t
CR
0.8 V
CC
0.2 V
CC
X0A
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