MB90F654A FUJITSU [Fujitsu Component Limited.], MB90F654A Datasheet - Page 76

• Manufacturer Part Number: MB90F654A
• Description: 16-bit Proprietary Microcontroller
• Manufacturer: FUJITSU [Fujitsu Component Limited.]

76
MB90650A Series
4. AC Characteristics
(1) Clock Timing
Because the PLL frequency fluctuates around the set frequency with a certain cycle [approximately CLK (1 CYC
to 50 CYC)], the worst value is not maintained for long. (The pulse, if featured with the long period, would produce
practically no error.)
* : The duty ratio should be in the range 30% to 70%.
Note : V
Clock frequency
Clock cycle time
Input clock pulse
width
Input clock rise
time and fall time
Internal
operating clock
frequency
Internal
operating clock
cycle time
Parameter
CC
= V
CC
1 = V
F
F
t
t
P
P
P
P
t
t
f
f
t
t
C
CL
cr
cf
CP
CPL
CP
CPL
Symbol
CH
CL
WH
WL
WLH
WLL
CC
2
X0, X1
X0A, X1A
X0, X1
X0A, X1A
X0
X0A
X0
name
Pin
—
—
—
—
Condition
—
—
—
—
—
—
—
—
—
—
—
41.67
83.3
Min
1.5
—
—
—
—
—
—
3
5
(V
CC
= 2.7 V to 3.6 V, V
32.768
Value
8.192
122.1
30.5
15.2
Typ
—
—
—
—
—
—
Max
333
666
24
12
—
—
—
—
—
—
5
SS
= 0.0 V, T
MHz
MHz
Unit
kHz
kHz
ns
ns
ns
ns
s
s
s
*
*
External clock
A
= –40 C to +85 C)
Remarks