mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 240

• Manufacturer Part Number: mc68hc908sr12
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Analog-to-Digital Converter (ADC)
15.6.2 Stop Mode
15.7 I/O Signals
15.7.1 ADC Voltage In (V
15.7.2 ADC Analog Power Pin (V
15.7.3 ADC Analog Ground Pin (V
Data Sheet
240
NOTE:
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. Allow one conversion cycle to stabilize the analog
circuitry before attempting a new ADC conversion after exiting stop
mode.
The ADC module has fourteen channels, eleven channels are shared
with port A and port C I/O pins; two channels are analog pins, OPIN1 and
OPIN2, that are shared with the analog module; and one channel,
OPOUT, from the analog module.
V
ADC 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
ADIN
ADIN
is the input voltage signal from one of the fourteen channels to the
)
DDA
Analog-to-Digital Converter (ADC)
DDA
carefully for maximum noise immunity and place bypass
SSA
)
)
DDA
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
SSA
DDA
for good results.
as its ground pin. Connect the V
as its power pin. Connect the V
DD
SS
.
. External filtering may be
Freescale Semiconductor
DDA
SSA