MC908AZ60AVFU Freescale Semiconductor, MC908AZ60AVFU Datasheet - Page 330
MC908AZ60AVFU
Manufacturer Part Number
MC908AZ60AVFU
Description
IC MCU 61K FLASH 8.4MHZ 64-QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AZ60ACFUER.pdf
(414 pages)
Specifications of MC908AZ60AVFU
Core Processor
HC08
Core Size
8-Bit
Speed
8.4MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
52
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Analog-to-Digital Converter (ADC)
26.5 Low-Power Modes
The following subsections describe the low-power modes.
26.5.1 Wait Mode
The ADC continues normal operation during wait mode. Any enabled CPU interrupt request from the ADC
can bring the MCU out of wait mode. If the ADC is not required to bring the MCU out of wait mode, power
down the ADC by setting the ADCH[4:0] bits in the ADC status and control register before executing the
WAIT instruction.
26.5.2 Stop Mode
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.
26.6 I/O Signals
The ADC module has 15 channels that are shared with I/O ports B and D. Refer to
Characteristics
26.6.1 ADC Analog Power Pin (V
The ADC analog portion uses V
voltage potential as V
V
26.6.2 ADC Analog Ground Pin (V
The ADC analog portion uses V
as V
V
26.6.3 ADC Voltage In (ADCVIN)
ADCVIN is the input voltage signal from one of the 15 ADC channels to the ADC module.
26.7 I/O Registers
These I/O registers control and monitor ADC operation:
330
REFH
REFL
•
•
•
SS
ADC status and control register (ADSCR)
ADC data register (ADR)
ADC clock register (ADICLK)
is the lower reference supply for the ADC.
.
is the high reference voltage for all analog-to-digital conversions.
Route V
capacitors as close as possible to the package. V
for operation of the ADC.
for voltages referenced below.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
DD
DDAREF
. External filtering may be necessary to ensure clean V
carefully for maximum noise immunity and place bypass
SSA
DDAREF
as its ground pin. Connect the V
DDAREF
as its power pin. Connect the V
SSA
)/ADC Voltage Reference Low Pin (V
)/ADC Voltage Reference Pin (V
NOTE
DDAREF
SSA
DDA
pin to the same voltage potential
must be present
/V
DDAREF
DDAREF
Freescale Semiconductor
28.1.6 ADC
REFH
pin to the same
REFL
for good results.
)
)
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