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