mc68hc908gr16 Freescale Semiconductor, Inc, mc68hc908gr16 Datasheet - Page 260

• Manufacturer Part Number: mc68hc908gr16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Specifications
20.9 Clock Generation Module Characteristics
20.9.1 CGM Component Specifications
20.9.2 CGM Electrical Specifications
260
External clock
Crystal load capacitance
Crystal fixed capacitance
Crystal tuning capacitance
Feedback bias resistor
Series resistor
Operating voltage
Operating temperature
Crystal reference frequency
Range nominal multiplier
VCO center-of-range frequency
Medium-voltage VCO center-of-range frequency
VCO range linear range multiplier
VCO power-of-two range multiplier
VCO multiply factor
VCO prescale multiplier
Reference divider factor
VCO operating frequency
Bus operating frequency
Bus frequency @ medium voltage
Manual acquisition time
Automatic lock time
PLL jitter
External clock input frequency
External clock input frequency
1. Crystal manufacturer value
2. Capacitor on OSC1 pin. Does not include parasitic capacitance due to package, pin, and board.
3. Capacitor on OSC2 pin. Does not include parasitic capacitance due to package, pin, and board.
1. 5.0 V ± 10% V
2. 3.3 V ± 10% V
3. Deviation of average bus frequency over 2 ms. N = VCO multiplier.
PLL disabled
PLL enabled
(3)
(3)
DD
DD
Characteristic
(1)
(1)
(2)
Description
(1)
(2)
MC68HC908GR16 Data Sheet, Rev. 5.0
(2)
Symbol
f
XCLK
C
C
C
R
R
L
1
2
B
S
Symbol
f
f
f
f
f
f
f
t
t
f
f
V
RCLK
VCLK
NOM
Lock
Lock
OSC
OSC
VRS
VRS
BUS
BUS
2
2
N
T
R
f
DD
L
J
E
P
Min
100
30
—
—
—
1
38.4 k
38.4 k
38.4 k
30 k
Min
–40
3.0
30
—
—
—
—
—
dc
1
1
1
1
0
1
32.768
12.5
Typ
330
15
15
10
32.768
38.4
Typ
25
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
Freescale Semiconductor
Max
100
470
22
0.025% x
—
—
—
f
40.0 M
40.0 M
40.0 M
32.8 M
2
RCLK
1.5 M
4095
Max
P
125
100
255
5.5
8.2
4.1
—
15
50
50
4
8
N/4
x
Unit
kHz
MΩ
kΩ
pF
pF
pF
MHz
MHz
Unit
kHz
kHz
ms
ms
Hz
Hz
Hz
Hz
Hz
Hz
o
V
C