MC908GR32AMFAE Freescale Semiconductor, MC908GR32AMFAE Datasheet - Page 64
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MC908GR32AMFAE
Manufacturer Part Number
MC908GR32AMFAE
Description
IC MCU 8BIT 32K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GR32ACFJE.pdf
(314 pages)
Specifications of MC908GR32AMFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GR32AMFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Analog-to-Digital Converter (ADC)
down the ADC by setting ADCH4–ADCH0 bits in the ADC status and control register before executing the
WAIT instruction.
3.6.2 Stop Mode
The ADC module is inactive after the execution of a STOP instruction. Any pending conversion is aborted.
ADC conversions resume when the MCU exits stop mode after an external interrupt. Allow one
conversion cycle to stabilize the analog circuitry.
3.7 I/O Signals
The ADC module has eight pins shared with port A and the KBI module:
The ADC module has eight pins shared with port B:
The ADC module has eight pins shared with port G:
3.7.1 ADC Analog Power Pin (V
The ADC analog portion uses V
potential as V
V
3.7.2 ADC Analog Ground Pin (V
The ADC analog portion uses V
potential as V
V
3.7.3 ADC Voltage Reference High Pin (V
The ADC analog portion uses V
pin to the same voltage potential as V
good results. Any noise present on this pin will be reflected and possibly magnified in A/D conversion
values.
V
64
DDAD
SSAD
DDAD
PTA7/KBD7/AD15–PTA0/KBD0/AD8
PTB7/AD7–PTB0/AD0
PTG7/AD23–PTG0/AD16
and V
and V
and V
REFL
REFH
REFH
DD
SS
For maximum noise immunity, route V
capacitors as close as possible to the package.
Route V
For maximum noise immunity, route V
capacitors as close as possible to the package. Routing V
parallel to V
.
. External filtering may be necessary to ensure clean V
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
are bonded internally.
are bonded internally.
are bonded internally.
SSAD
REFL
cleanly to avoid any offset errors.
DDAD
SSAD
REFH
may improve common mode noise rejection.
DDAD
DD
as its ground pin. Connect the V
as its upper voltage reference pin. By default, connect the V
as its power pin. Connect the V
SSAD
. External filtering is often necessary to ensure a clean V
)
)
REFH
NOTE
NOTE
NOTE
DDAD
REFH
)
carefully and place bypass
carefully and place bypass
DDAD
SSAD
DDAD
REFH
pin to the same voltage
pin to the same voltage
for good results.
close and
Freescale Semiconductor
REFH
REFH
for
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