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MC68HC908LJ12_1 Datasheet, PDF (5/16 Pages) Freescale Semiconductor, Inc – Addendum to MC68HC908LJ12 Technical Data
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Freescale Semiconductor, Inc.
HC908LJ12AD/D
MC68HLC908LJ12
Oscillator
Characteristics
Table 4. Oscillator Specifications (2.4 to 2.7V)
Characteristic
Internal oscillator clock frequency
Symbol
fICLK
Min
Typ
Max Unit
—
See Figure 1.
—
Hz
External reference clock to OSC1(1)
fOSC
dc
—
8M
Hz
Crystal reference frequency(2)
Crystal load capacitance(3)
Crystal fixed capacitance
Crystal tuning capacitance
Feedback bias resistor
Series resistor(4)
1. No more than 10% duty cycle deviation from 50%.
2. Fundamental mode crystals only.
3. Consult crystal manufacturer’s data.
4. Not Required for high frequency crystals.
fXCLK
CL
C1
C2
RB
RS
32.768 k
4.9152M Hz
—
—
—
—
2 × CL (25p)
—
F
—
2 × CL (25p)
—
F
—
10 M
—
Ω
—
100 k
—
Ω
Table 5. Oscillator Specifications (2.7 to 3.3V)
Characteristic
Internal oscillator clock frequency
Symbol
fICLK
Min
Typ
Max Unit
—
See Figure 1.
—
Hz
External reference clock to OSC1(1)
fOSC
dc
—
16 M
Hz
Crystal reference frequency(2)
Crystal load capacitance(3)
Crystal fixed capacitance
Crystal tuning capacitance
Feedback bias resistor
Series resistor(4)
1. No more than 10% duty cycle deviation from 50%.
2. Fundamental mode crystals only.
3. Consult crystal manufacturer’s data.
4. Not Required for high frequency crystals.
fXCLK
CL
C1
C2
RB
RS
32.768 k
4.9152M Hz
—
—
—
—
2 × CL (25p)
—
F
—
2 × CL (25p)
—
F
—
10 M
—
Ω
—
100 k
—
Ω
Addendum to MC68HC908LJ12 Technical Data
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