MB90P663APFM View Datasheet(PDF) - Fujitsu
Part Name
Description
Manufacturer
MB90P663APFM Datasheet PDF : 84 Pages
| |||
MB90660A Series
4. AC Characteristics
(1) Clock Timing Values
• Used at VCC = 5.0 V ±10%
Parameter
Symbol Pin name
Oscillation frequency
FC
Oscillation cycle time
tC
Frequency fluctuation ratio*
(when locked)
ýf
Input clock pulse width
PWH
PWL
Input clock rising and falling tcr
times
tcf
Internal operating clock
frequency
fCP
Internal operating clock
cycle time
tCP
X0, X1
X0, X1
—
X0
X0
—
—
(VCC = +4.5 V to +5.5 V, VSS = 0.0 V, TA = –40°C to +85°C)
Value
Conditions
Unit
Min. Max.
Remarks
—
3
32 MHz
—
31.25 333
ns
—
—
3
%
—
10
—
ns
Use duty ratio of 30% to
70% as guideline
—
—
5
ns
—
1.5
16 MHz
—
62.5 666
ns
* : The frequency fluctuation ratio represents the maximum fluctuation from the central frequency as a percentage
when a multiplier is locked.
α
∆f=
f0
× 100 (%)
+
+α
Central frequency f 0
–α
–
• Used at VCC = 2.7 V (minimum)
Parameter
Symbol Pin name
Oscillation frequency
FC
Oscillation cycle time
tC
Input clock pulse width
PWH
PWL
Input clock rising and falling tcr
times
tcf
Internal operating clock
frequency
fCP
Internal operating clock
cycle time
tCP
X0, X1
X0, X1
X0
X0
—
—
(VCC = +2.7 V to +5.5 V, VSS = 0.0 V, TA = –40°C to +85°C)
Value
Conditions
Unit
Min. Max.
Remarks
—
3
16 MHz
—
62.5 333
ns
—
20
—
ns
Use duty ratio of 30% to
70% as guideline
—
—
5
ns
—
1.5
8
MHz
—
125
666
ns
50
Share Link: 