MC9S12C128MFAE Freescale Semiconductor, MC9S12C128MFAE Datasheet - Page 267
![IC MCU 128K FLASH 25MHZ 48-LQFP](/photos/12/20/122066/mc9s12c128mfae_sml.jpg)
MC9S12C128MFAE
Manufacturer Part Number
MC9S12C128MFAE
Description
IC MCU 128K FLASH 25MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Specifications of MC9S12C128MFAE
Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
CAN, EBI/EMI, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
31
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
S12C
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
4 KB
Interface Type
CAN/SCI/SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
31
Number Of Timers
8
Operating Supply Voltage
3.3 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
M68EVB912C32EE
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Package
48LQFP
Family Name
HCS12
Maximum Speed
25 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12C128MFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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The PLL is a frequency generator that operates in either acquisition mode or tracking mode, depending on
the difference between the output frequency and the target frequency. The PLL can change between
acquisition and tracking modes either automatically or manually.
The VCO has a minimum operating frequency, which corresponds to the self-clock mode frequency f
9.4.1.1
The oscillator output clock signal (OSCCLK) is fed through the reference programmable divider and is
divided in a range of 1 to 16 (REFDV+1) to output the reference clock. The VCO output clock, (PLLCLK)
is fed back through the programmable loop divider and is divided in a range of 2 to 128 in increments of
[2 x (SYNR +1)] to output the feedback clock. See
The phase detector then compares the feedback clock, with the reference clock. Correction pulses are
generated based on the phase difference between the two signals. The loop filter then slightly alters the DC
voltage on the external filter capacitor connected to XFC pin, based on the width and direction of the
correction pulse. The filter can make fast or slow corrections depending on its mode, as described in the
next subsection. The values of the external filter network and the reference frequency determine the speed
of the corrections and the stability of the PLL.
9.4.1.2
The lock detector compares the frequencies of the feedback clock, and the reference clock. Therefore, the
speed of the lock detector is directly proportional to the final reference frequency. The circuit determines
the mode of the PLL and the lock condition based on this comparison.
Freescale Semiconductor
EXTAL
XTAL
supplied by:
PLL Operation
Acquisition and Tracking Modes
VDDPLL/VSSPLL
VDD/VSS
CONSUMPTION
OSCILLATOR
REDUCED
OSCCLK
MONITOR
CRYSTAL
Figure 9-16. PLL Functional Diagram
MC9S12C-Family / MC9S12GC-Family
PROGRAMMABLE
REFDV <3:0>
REFERENCE
DIVIDER
PROGRAMMABLE
SYN <5:0>
DIVIDER
LOOP
Rev 01.24
Figure
REFERENCE
Chapter 9 Clocks and Reset Generator (CRGV4) Block Description
FEEDBACK
9-16.
DETECTOR
DETECTOR
FILTER
LOOP
PHASE
LOCK
PDET
VDDPLL
DOWN
UP
LOCK
CPUMP
XFC
PIN
VDDPLL/VSSPLL
VCO
PLLCLK
SCM
267
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