MC68HC908AB32CFU Freescale Semiconductor, MC68HC908AB32CFU Datasheet - Page 234
MC68HC908AB32CFU
Manufacturer Part Number
MC68HC908AB32CFU
Description
IC MCU 8MHZ 32K FLASH 64-QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AB32CFUE.pdf
(392 pages)
Specifications of MC68HC908AB32CFU
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
POR, PWM
Number Of I /o
51
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Analog-to-Digital Converter (ADC)
14.7.1 ADC Analog Power Pin (V
14.7.2 ADC Analog Ground Pin (A
14.7.3 ADC Voltage Reference High Pin (V
14.7.4 ADC Voltage In (V
14.8 I/O Registers
Technical Data
234
NOTE:
NOTE:
The ADC analog portion uses V
V
be necessary to ensure clean V
For maximum noise immunity, route V
bypass capacitors as close as possible to the package.
The ADC analog portion uses A
A
Route A
V
V
the ADC module.
These I/O registers control and monitor ADC operation:
DDAREF
VSS
REFH
ADIN
•
•
•
ADIN
/V
ADC status and control register (ADSCR)
ADC data register (ADR)
ADC clock register (ADCLK)
is the input voltage signal from one of the eight ADC channels to
is the reference voltage for the ADC.
REFL
VSS
)
pin to the same voltage potential as V
Analog-to-Digital Converter (ADC)
DDAREF
/V
pin to the same voltage potential as V
VSS
REFL
/V
)
REFL
cleanly to avoid any offset errors.
REFH
)
)
VSS
DDAREF
DDAREF
/V
REFL
DDAREF
for good results.
as its power pin. Connect the
as its ground pin. Connect the
carefully and place
DD
MC68HC908AB32
. External filtering may
Freescale Semiconductor
SS
.
—
Rev. 1.1
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