MC9S12C128VFU Freescale Semiconductor, MC9S12C128VFU Datasheet - Page 668

• Manufacturer Part Number: MC9S12C128VFU
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12C128VFU

• Cpu Family: HCS12
• Device Core Size: 16b
• Frequency (max): 25MHz
• Interface Type: CAN/SCI/SPI
• Program Memory Type: Flash
• Program Memory Size: 128KB
• Total Internal Ram Size: 4KB
• # I/os (max): 60
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 2.5/5V
• Operating Supply Voltage (max): 2.75/5.5V
• Operating Supply Voltage (min): 2.35/2.97V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 80
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Appendix A Electrical Characteristics
The relative deviation of t
number of clock periods (N).
Defining the jitter as:
For N < 100, the following equation is a good fit for the maximum jitter:
This is very important to notice with respect to timers, serial modules where a pre-scaler will eliminate the
effect of the jitter to a large extent.
668
0
t
min1
t
nom
t
max1
J(N)
nom
1
J N
Figure A-4. Maximum Bus Clock Jitter Approximation
( )
is at its maximum for one clock period, and decreases towards zero for larger
1
=
max 1
MC9S12C-Family / MC9S12GC-Family
5
Figure A-3. Jitter Definitions
2
⎛
⎜
⎝
J N
( )
10
–
Rev 01.24
t
-------------------- -
N t
t
=
minN
max
t
maxN
⋅
------- -
j
nom
1
( )
N
3
N
+
,
j
2
1
–
20
-------------------- -
N t
t
min
⋅
nom
( )
N
N-1
⎞
⎟
⎠
N
Freescale Semiconductor
N