mc9s12q128 Freescale Semiconductor, Inc, mc9s12q128 Datasheet - Page 617

• Manufacturer Part Number: mc9s12q128
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

1. Depending on the crystal a damping series resistor might be necessary
2. f
3. Maximum value is for extreme cases using high Q, low frequency crystals
4. Only valid if Pierce Oscillator/external clock selected (XCLKS = 0 during reset)
Freescale Semiconductor
Conditions are shown in
Num
osc
1a
1b
10
11
12
13
14
15
2
3
4
5
6
7
8
9
= 4MHz, C = 22pF.
C
C
C
P
C
D
P
P
D
D
D
D
D
C
P
P
C
T
T
Crystal oscillator range (Colpitts)
Crystal oscillator range (Pierce)
Startup Current
Oscillator start-up time (Colpitts)
Clock Quality check time-out
Clock Monitor Failure Assert Frequency
External square wave input frequency
External square wave pulse width low
External square wave pulse width high
External square wave rise time
External square wave fall time
Input Capacitance (EXTAL, XTAL pins)
DC Operating Bias in Colpitts Configuration
on EXTAL Pin
EXTAL Pin Input High Voltage
EXTAL Pin Input High Voltage
EXTAL Pin Input Low Voltage
EXTAL Pin Input Low Voltage
EXTAL Pin Input Hysteresis
Table A-4
unless otherwise noted
Rating
Table A-16. Oscillator Characteristics
4
4
4
4
4
(1) 4
MC9S12Q128
(4)
Rev 1.09
V
V
V
V
V
V
Symbol
HYS,EXTAL
t
t
IH,EXTAL
IH,EXTAL
CQOUT
UPOSC
f
t
t
t
DCBIAS
Il,EXTAL
Il,EXTAL
t
f
f
i
CMFA
f
EXTH
EXTR
EXTL
EXTF
C
OSC
OSC
OSC
EXT
IN
V
SSPLL
V
0.75*
0.45
DDPLL
Min
100
0.5
0.5
0.5
9.5
9.5
50
—
—
—
—
—
—
—
—
-0.3
Appendix A Electrical Characteristics
Typ
100
250
8
1.1
—
—
—
—
—
—
—
—
—
—
—
—
—
7
(2)
V
DDPLL
V
100
0.25*
Max
DDPLL
200
2.5
16
40
50
—
—
—
—
—
—
—
—
1
1
(3)
+0.3
MHz
MHz
MHz
Unit
KHz
mV
ms
pF
ns
ns
ns
ns
V
V
V
V
V
s
A
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