MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 350

• Manufacturer Part Number: MC68HC908AZ32ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Analog-To-Digital Converter (ADC-15)
21.6.2 Stop Mode
21.7 I/O Signals
21.7.1 ADC Analog Power Pin (V
21.7.2 ADC Analog Ground Pin (V
21.7.3 ADC Voltage In (ADCVIN)
Advance Information
350
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 15 channels that are shared with I/O ports B and
D. Refer to
below.
The ADC analog portion uses V
V
filtering may be necessary to ensure clean V
V
Route V
capacitors as close as possible to the package. V
present for operation of the ADC.
The ADC analog portion uses V
pin to the same voltage potential as V
V
ADCVIN is the input voltage signal from one of the 15 ADC channels to
the ADC module.
DDA
REFH
REFL
Freescale Semiconductor, Inc.
For More Information On This Product,
/V
is the lower reference supply for the ADC.
is the high reference voltage for all analog-to-digital conversions.
DDAREF
Analog-To-Digital Converter (ADC-15)
DDAREF
DDAREF
ADC Characteristics
Go to: www.freescale.com
SSA
pin to the same voltage potential as V
carefully for maximum noise immunity and place bypass
)/ADC Voltage Reference Low Pin (V
)/ADC Voltage Reference Pin (V
SSA
DDAREF
on page 448 for voltages referenced
as its ground pin. Connect the V
SS
as its power pin. Connect the
.
DDAREF
68HC908AZ32A — Rev 0.0
DDAREF
for good results.
REFH
DD
REFL
. External
must be
)
)
MOTOROLA
SSA