MB89145 Datasheet, PDF (31/50 Pages) Fujitsu Component Limited. – 8-bit Proprietary Microcontroller

MB89140 Series
(3) Clock Timing
Parameter
Clock frequency
Clock cycle time
Input clock pulse width
Input clock rising/falling
time
Symbol
FCH
FCL
tXCYL
tLXCYL
PWH
PWL
PWHL
PWLL
tCR
tCF
Pin
X0, X1
X0A, X1A
X0, X1
X0A, X1A
X0
X0A
X0, X0A
Condition
—
Min.
2
—
125
—
30
—
—
(AVSS = VSS = 0.0 V, TA = –40°C to +85°C)
Value
Unit
Typ. Max.
Remarks
—
8 MHz
32.768 — kHz
—
500 ns
30.5
—
µs
—
— ns
External clock
15.2
—
µs
—
10 ns External clock
X0 and X1 Timing and Conditions
PWH
tCR
tXCYL
PWL
tCF
0.8 VCC
0.8 VCC
X0
0.2 VCC
0.2 VCC
0.2 VCC
Main Clock Conditions
When a crystal or ceramic resonator is used
X0
X1
C0
C1
When an external clock is used
X0
X1
Open
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