MB95120MB Series
42
4.
AC Characteristics
(1) Clock Timing
(VCC
= 2.42 V to 5.5 V, AVSS = VSS = 0.0 V, TA = 40 °C to + 105 °C)
Parameter
Sym-
bol
Pin name
Condi-
tion
Value
Unit
Remarks
Min
Typ
Max
Clock frequency
FCH
X0, X1
1.00
16.25
MHz
When using main
oscillation circuit
1.00
32.50
MHz
When using external clock
3.00
10.00
MHz
Main PLL multiplied by 1
3.00
8.13
MHz
Main PLL multiplied by 2
3.00
6.50
MHz
Main PLL multiplied by 2.5
3.00
4.06
MHz
Main PLL multiplied by 4
FCL
X0A, X1A
32.768
kHz
When using sub
oscillation circuit
32.768
kHz
When using sub PLL
VCC
= 2.3 V to 3.6 V
Clock cycle time
tHCYL
X0, X1
61.5
1000
ns
When using main oscilla-
tion circuit
30.8
1000
ns
When using external clock
tLCYL
X0A, X1A
30.5
s
When using sub oscilla-
tion circuit
Input clock pulse width
tWH1
tWL1
X0
61.5
ns
When using external clock
Duty ratio is about 30
% to
70
%.
tWH2
tWL2
X0A
15.2
s
Input clock rise time and
fall time
tCR
tCF
X0, X0A
5
ns
When using external clock