MC68HC908JK3EMP MOTOROLA [Motorola, Inc], MC68HC908JK3EMP Datasheet - Page 202

• Manufacturer Part Number: MC68HC908JK3EMP
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Electrical Specifications
18.8 5V Oscillator Characteristics
Technical Data
202
NOTES:
Crystal frequency, XTALCLK
RC oscillator frequency, RCCLK
External clock
Crystal load capacitance
Crystal fixed capacitance
Crystal tuning capacitance
Feedback bias resistor
Series resistor
RC oscillator external R
RC oscillator external C
14
12
10
1. No more than 10% duty cycle deviation from 50%.
2. Consult crystal vendor data sheet.
3. Not required for high frequency crystals.
reference frequency
8
6
4
2
0
0
Characteristic
Table 18-6. Oscillator Component Specifications (5V)
(2), (3)
10
Figure 18-1. RC vs. Frequency (5V @25°C)
(1)
(2)
(2)
(2)
Resistor, R
20
Electrical Specifications
f
f
Symbol
OSCXCLK
OSCXCLK
f
RCCLK
R
C
EXT
R
R
C
C
C
EXT
EXT
B
S
L
1
2
30
(k Ω )
C
5V @ 25 ° C
EXT
Min
—
dc
—
—
—
—
—
—
2
= 10 pF
40
See
MC68H(R)C908JL3E/JK3E/JK1E
10 M Ω
2 × C
2 × C
Typ
Figure 18-1
10
10
10
—
—
—
L
L
50
V
DD
Max
32
12
32
—
—
—
—
—
—
R
EXT
OSC1
MHz
MHz
MHz
Unit
pF
MCU
MOTOROLA
C
EXT
—
Rev. 2.0