MC9S12HZ256CAL Freescale Semiconductor, MC9S12HZ256CAL Datasheet - Page 187
MC9S12HZ256CAL
Manufacturer Part Number
MC9S12HZ256CAL
Description
IC MCU 256K FLASH 25MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12HZ128CAL.pdf
(692 pages)
Specifications of MC9S12HZ256CAL
Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
CAN, EBI/EMI, I²C, SCI, SPI
Peripherals
LCD, Motor control PWM, POR, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
12K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
Processor Series
S12H
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
12 KB
Interface Type
I2C/SCI/SPI
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
85
Number Of Timers
8
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Minimum Operating Temperature
- 40 C
On-chip Adc
16-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12HZ256CAL
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
MC9S12HZ256CAL
Manufacturer:
Freescale Semiconductor
Quantity:
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Part Number:
MC9S12HZ256CAL
Manufacturer:
FREESCALE
Quantity:
20 000
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The sequence for clock quality check is shown in
1. A Clock Monitor Reset will always set the SCME bit to logical’1’
Freescale Semiconductor
POR
check window
Clock OK
or clock monitor reset
check the OSCCLK signal.
LVR
Remember that in parallel to additional actions caused by self-clock mode
osc ok
num=0
OSCCLK
active?
SCM
VCO
clock
?
yes
no
exit full stop
no
yes
Figure 5-20. Sequence for Clock Quality Check
1
CM fail
1 2 3 4 5
Figure 5-19. Check Window Example
Switch to OSCCLK
MC9S12HZ256 Data Sheet, Rev. 2.05
check window
1
2
handling the clock quality checker continues to
num=num+1
Exit SCM
num<50
3
?
yes
NOTE
Clock Monitor Reset
Enter SCM
Figure
4095
osc ok
no
4096
5-20.
yes
Chapter 5 Clocks and Reset Generator (CRGV4)
SCME=1
active?
SCM
49999
?
no
yes
no
50000
num=50
187
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