MC68HC908GR16VFJ Freescale Semiconductor, MC68HC908GR16VFJ Datasheet - Page 49

• Manufacturer Part Number: MC68HC908GR16VFJ
• Description: IC MCU 16K FLASH 8MHZ SPI 32LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR16VFJ

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LIN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

3.3.2 Voltage Conversion
When the input voltage to the ADC equals V
input voltage equals V
straight-line linear conversion.
Freescale Semiconductor
INTERNAL
DATA BUS
The ADC input voltage must always be greater than V
V
Connect the V
connect the V
The V
AIEN
DDAD
INTERRUPT
LOGIC
DDAD
.
COCO
READ DDRBx
WRITE DDRBx
WRITE PTBx
READ PTBx
REFL
,
pin should be routed carefully for maximum noise immunity.
CONVERSION
BUS CLOCK
COMPLETE
the ADC converts it to $000. Input voltages between V
RESET
CGMXCLK
SSAD
DDAD
pin to the same voltage potential as the V
pin to the same voltage potential as the V
Figure 3-2. ADC Block Diagram
MC68HC908GR16 Data Sheet, Rev. 5.0
ADIV2–ADIV0
ADC DATA REGISTER
GENERATOR
DDRBx
REFH
PTBx
CLOCK
ADC
ADC CLOCK
ADICLK
, the ADC converts the signal to $3FF (full scale). If the
NOTE
VOLTAGE IN
(V
ADC
ADIN
DISABLE
)
DISABLE
SSAD
CHANNEL
SELECT
and less than
ADC CHANNEL x
SS
PTBx
DD
pin.
ADCH4–ADCH0
pin, and
REFH
Functional Description
and V
REFL
are a
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