MC9S12DG128CFUE Freescale, MC9S12DG128CFUE Datasheet - Page 121

• Manufacturer Part Number: MC9S12DG128CFUE
• Manufacturer: Freescale

Specifications of MC9S12DG128CFUE

• Cpu Family: HCS12
• Device Core Size: 16b
• Frequency (max): 50MHz
• Interface Type: SCI/SPI/I2C/CAN
• Total Internal Ram Size: 8KB
• # I/os (max): 91
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 2.5/5V
• Operating Supply Voltage (max): 2.75/5.25V
• Operating Supply Voltage (min): 2.25/2.35/4.5V
• On-chip Adc: 2(8-chx10-bit)
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 80
• Package Type: PQFP
• Program Memory Type: Flash
• Program Memory Size: 128KB
• Lead Free Status / RoHS Status: Compliant

Conditions are shown in (Table A-4) unless otherwise noted
Num C
Clock Monitor Failure is asserted if the frequency of the incoming clock signal is below the Assert
Frequency f
A.5.3 Phase Locked Loop
The oscillator provides the reference clock for the PLL. The PLL´s Voltage Controlled Oscillator (VCO)
is also the system clock source in self clock mode.
A.5.3.1 XFC Component Selection
This section describes the selection of the XFC components to achieve a good filter characteristics.
Freescale Semiconductor
NOTES:
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. XCLKS =0 during reset
1a
1b
10
11
12
13
14
15
2
3
4
5
6
7
8
9
osc
C Crystal oscillator range (Colpitts)
C Crystal oscillator range (Pierce)
C Oscillator start-up time (Colpitts)
D Clock Quality check time-out
D External square wave pulse width low
D External square wave pulse width high
D External square wave rise time
D External square wave fall time
D Input Capacitance (EXTAL, XTAL pins)
C
C EXTAL Pin Input Hysteresis
P Startup Current
P Clock Monitor Failure Assert Frequency
P External square wave input frequency
P EXTAL Pin Input High Voltage
T EXTAL Pin Input High Voltage
P EXTAL Pin Input Low Voltage
T EXTAL Pin Input Low Voltage
= 4MHz, C = 22pF.
DC Operating Bias in Colpitts Configuration on
EXTAL Pin
CMFA.
Rating
Table A-15 Oscillator Characteristics
4
4
4
4
4
1
4
V
V
V
Symbol
V
V
V
HYS,EXTAL
t
t
IH,EXTAL
IH,EXTAL
CQOUT
IL,EXTAL
IL,EXTAL
UPOSC
f
t
t
t
t
DCBIAS
f
f
i
CMFA
f
EXTH
EXTR
EXTL
EXTF
Device User Guide — 9S12DT128DGV2/D V02.16
OSC
OSC
OSC
C
EXT
IN
0.75*V
V
SSPLL
Min
0.45
100
0.5
0.5
0.5
9.5
9.5
50
DDPLL
- 0.3
Typ
100
250
1.1
8
7
2
V
0.25*V
DDPLL
Max
100
200
2.5
16
40
50
1
1
DDPLL
3
+ 0.3
Unit
MHz
MHz
MHz
KHz
mV
ms
pF
ns
ns
ns
ns
V
V
V
V
V
121
s
A