mc68hc908lj24 Freescale Semiconductor, Inc, mc68hc908lj24 Datasheet - Page 341

• Manufacturer Part Number: mc68hc908lj24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

16.7.1 ADC Voltage In (V
16.7.2 ADC Analog Power Pin (V
16.7.3 ADC Analog Ground Pin (V
16.7.4 ADC Voltage Reference High Pin (V
16.7.5 ADC Voltage Reference Low Pin (V
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
NOTE:
NOTE:
NOTE:
V
module.
The ADC analog portion uses V
pin to the same voltage potential as V
necessary to ensure clean V
Route V
capacitors as close as possible to the package.
The ADC analog portion uses V
pin to the same voltage potential as V
On the 64-pin and 80-pin MC68HC908LJ24, V
to V
V
Connect the V
be a finite current associated with V
Characteristics).
Route V
capacitors as close as possible to the package.
V
to the same voltage potential as V
associated with V
ADIN
REFH
REFL
ADIN
SS
is the input voltage signal from one of the ten channels to the ADC
.
is the lower reference supply for the ADC. Connect the V
is the power supply for setting the reference voltage V
DDA
REFH
)
Analog-to-Digital Converter (ADC)
DDA
carefully for maximum noise immunity and place bypass
SSA
carefully for maximum noise immunity and place bypass
REFH
)
)
REFL
pin to the same voltage potential as V
REFL
(see
REFH
)
)
24.12 5V ADC Electrical
DDA
SSA
DDA
for good results.
SSA
REFH
as its ground pin. Connect the V
as its power pin. Connect the V
DD
SS
. There will be a finite current
.
. External filtering may be
(see
Analog-to-Digital Converter (ADC)
24.12 5V ADC Electrical
SSA
is internally bonded
Characteristics).
DDA
. There will
REFH
Data Sheet
I/O Signals
REFL
.
DDA
SSA
pin
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