MCHC912B32CFUE8 Freescale Semiconductor, MCHC912B32CFUE8 Datasheet - Page 139

IC MCU 32K FLASH 8MHZ 80-QFP

MCHC912B32CFUE8

Manufacturer Part Number
MCHC912B32CFUE8
Description
IC MCU 32K FLASH 8MHZ 80-QFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet

Specifications of MCHC912B32CFUE8

Core Processor
CPU12
Core Size
16-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
63
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
768 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Cpu Family
HC12
Device Core Size
16b
Frequency (max)
8MHz
Interface Type
SCI/SPI
Total Internal Ram Size
1KB
# I/os (max)
63
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
On-chip Adc
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
Package
80PQFP
Family Name
HC12
Maximum Speed
8 MHz
Operating Supply Voltage
5 V
Data Bus Width
16 Bit
Number Of Programmable I/os
63
Processor Series
HC912B
Core
HC12
Data Ram Size
1 KB
Maximum Clock Frequency
8 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
M68EVB912B32E
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCHC912B32CFUE8
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MCHC912B32CFUE8
Quantity:
300
11.4.1 PWM Period Calculation
These parameters were used to calculate the high-time values shown in
Table
11.4.2 Equipment
For this exercise, use the M68HC912B32EVB emulation board.
Freescale Semiconductor
11-3:
Period = $1000 (Hex) = 4096 (decimal)
E clock = 8 MHz
Prescaler = 4
Frequency = (8 MHz) / (#clocks_count*prescaler) = (8 MHz) (4096*4)
= 500 Hz
If period ($4096 Clocks) => frequency = 500 Hz
HEX Count
$0D9A
$0C00
$0020
$0040
$0080
$0100
$0200
$0040
$0080
$0996
$1000
High-Time Values
Table 11-3. PWM Period Calculations
M68HC12B Family Data Sheet, Rev. 9.1
Decimal Count
1024
2048
2454
3072
3482
4096
128
256
512
32
64
Using the Output Compare 7 Feature to Generate a PWM
Duty Cycle
100.00%
12.50%
25.00%
50.00%
60.00%
75.00%
85.00%
6.25%
1.5%
3.1%
0%
139

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