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MC68HC908GR16A Datasheet(PDF) 47 Page - Freescale Semiconductor, Inc

No. de Pieza. MC68HC908GR16A
Descripción  M68HC08 Microcontrollers
Descarga  270 Pages
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Fabricante  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
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MC68HC908GR16A Datasheet(HTML) 47 Page - Freescale Semiconductor, Inc

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Functional Description
MC68HC908GR16A Data Sheet, Rev. 1.0
Freescale Semiconductor
47
Figure 3-2. ADC Block Diagram
3.3.2 Voltage Conversion
When the input voltage to the ADC equals VREFH, the ADC converts the signal to $3FF (full scale). If the
input voltage equals VREFL, the ADC converts it to $000. Input voltages between VREFH and VREFL are a
straight-line linear conversion.
NOTE
The ADC input voltage must always be greater than VSSAD and less than
VDDAD. Connect the VDDAD pin to the same voltage potential as the VDD
pin, and connect the VSSAD pin to the same voltage potential as the VSS pin.
The VDDAD pin should be routed carefully for maximum noise immunity.
INTERNAL
DATA BUS
READ DDRBx
WRITE DDRBx
RESET
WRITE PTBx
READ PTBx
PTBx
DDRBx
PTBx
INTERRUPT
LOGIC
CHANNEL
SELECT
ADC
CLOCK
GENERATOR
CONVERSION
COMPLETE
ADC
(VADIN)
ADC CLOCK
CGMXCLK
BUS CLOCK
ADCH4–ADCH0
ADC DATA REGISTER
AIEN
COCO
DISABLE
DISABLE
ADC CHANNEL x
ADIV2–ADIV0
ADICLK
VOLTAGE IN


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Número de Pieza relacionado

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