MC68HC908AP16CFA MOTOROLA [Motorola, Inc], MC68HC908AP16CFA Datasheet - Page 423

• Manufacturer Part Number: MC68HC908AP16CFA
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

24.11 3V Oscillator Characteristics
MC68HC908AP Family — Rev. 2.5
MOTOROLA
Notes:
Internal oscillator clock frequency
External reference clock to OSC1
Crystal reference frequency
Crystal load capacitance
Crystal fixed capacitance
Crystal tuning capacitance
Feedback bias resistor
Series resistor
External RC clock frequency
RC oscillator external R
RC oscillator external C
1. The oscillator circuit operates at V
2. Typical value reflect average measurements at midpoint of voltage range, 25 °C only.
3. No more than 10% duty cycle deviation from 50%. The max. frequency is limited by an EMC filter.
4. Fundamental mode crystals only.
5. Consult crystal vendor data sheet.
8
6
4
2
0
0
Characteristic
(5)
10
(5)
(5)
(5)
(4)
Table 24-10. Oscillator Specifications (3V)
(1)
Freescale Semiconductor, Inc.
REG
For More Information On This Product,
(3)
Resistor, R
Figure 24-1. RC vs. Frequency
.
20
Go to: www.freescale.com
EXT
C
V
f
30
Symbol
XTALCLK
f
(kΩ)
DD
EXT
RCCLK
R
C
f
f
ICLK
OSC
R
R
C
C
C
EXT
EXT
B
S
= 3V, 5V, @ 25°C
L
1
2
= 10 pF
40
Min
16k
dc
—
—
—
—
—
—
See
50
Figure 24-1
100kΩ
10MΩ
22k
2 × C
2 × C
Typ
32k
10
—
(2)
V
L
L
REG
3V Oscillator Characteristics
R
Electrical Specifications
EXT
7.6M
Max
16M
26k
—
—
—
—
—
—
OSC1
MCU
C
Data Sheet
EXT
Unit
Hz
Hz
Hz
Hz
pF
Ω
423