MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 579

• Manufacturer Part Number: MC9S12E128CPV
• Description: Microcontrollers (MCU) 16 Bit 16MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12E128CPV

• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 128 KB
• Data Ram Size: 8 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 92
• Number Of Timers: 16 bit
• Operating Supply Voltage: 3.135 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-112
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• On-chip Dac: 8 bit, 2 Channel
• Lead Free Status / Rohs Status: No RoHS Version Available

J N
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.
Freescale Semiconductor
J N
=
=
0
------- -
max 1
j
1
N
t
+
min1
t
nom
t
j
max1
2
J(N)
–
t
-------------------- -
N t
max
1
nom
1
nom
is at its maximum for one clock period, and decreases towards zero for larger
N
5
,
MC9S12E128 Data Sheet, Rev. 1.07
1
Figure A-3. Jitter Definitions
–
2
-------------------- -
N t
t
10
min
nom
N
t
minN
t
maxN
3
20
Appendix A Electrical Characteristics
N-1
N
N
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