mcf51qe32 Freescale Semiconductor, Inc, mcf51qe32 Datasheet - Page 21

• Manufacturer Part Number: mcf51qe32
• Description: Mc9s08qe128 Flexis 8-bit Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

3.8
Reference
Freescale Semiconductor
1
2
3
4
Num
Data in Typical column was characterized at 3.0 V, 25°C or is typical recommended value.
Load capacitors (C
See crystal or resonator manufacturer’s recommendation.
Proper PC board layout procedures must be followed to achieve specifications.
1
2
3
4
5
6
C
C
D
D
D
C
D
Figure 13
External Oscillator (XOSC) Characteristics
Oscillator crystal or resonator (EREFS = 1, ERCLKEN = 1)
Load capacitors
Feedback resistor
Series resistor —
Crystal start-up time
Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)
Table 10. XOSC and ICS Specifications (Temperature Range = –40 to 85°C Ambient)
Low range (RANGE = 0)
High range (RANGE = 1), high gain (HGO = 1)
High range (RANGE = 1), low power (HGO = 0)
Low range (RANGE=0), low power (HGO=0)
Other oscillator settings
Low range, low power (RANGE=0, HGO=0)
Low range, High Gain (RANGE=0, HGO=1)
High range (RANGE=1, HGO=X)
Low range, low power (RANGE = 0, HGO = 0)
Low range, high gain (RANGE = 0, HGO = 1)
High range, low power (RANGE = 1, HGO = 0)
High range, high gain (RANGE = 1, HGO = 1)
Low range, low power
Low range, high power
High range, low power
High range, high power
FEE mode
FBE or FBELP mode
≥ 8 MHz
4 MHz
1 MHz
and
1
,C
2
Figure 14
), feedback resistor (R
MC9S08QE128 Series Advance Information Data Sheet, Rev. 4
4
for crystal or resonator circuits.
Characteristic
F
) and series resistor (R
2
2
S
) are incorporated internally when RANGE=HGO=0.
Symbol
C
t
t
CSTH
f
CSTL
extal
R
R
1,
f
f
f
lo
hi
hi
C
F
S
2
0.03125
Min
32
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
0
Electrical Characteristics
Typ
100
200
400
10
15
—
—
—
See Note
See Note
—
—
—
—
1
0
0
0
0
5
1
50.33
50.33
Max
38.4
16
10
20
—
—
—
—
—
—
—
—
—
—
2
3
8
0
MHz
MHz
MHz
MHz
Unit
kHz
MΩ
ms
kΩ
21