MCR908JL3ECFAE Freescale Semiconductor, MCR908JL3ECFAE Datasheet - Page 98
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MCR908JL3ECFAE
Manufacturer Part Number
MCR908JL3ECFAE
Description
IC MCU 4K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908JK1ECDWE.pdf
(180 pages)
Specifications of MCR908JL3ECFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LED, LVD, POR, PWM
Number Of I /o
23
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCR908JL3ECFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Analog-to-Digital Converter (ADC)
9.3.1 ADC Port I/O Pins
PTB0–PTB7 and PTD0–PTD3 are general-purpose I/O pins that are shared with the ADC channels. The
channel select bits (ADC status and control register, $003C), define which ADC channel/port pin will be
used as the input signal. The ADC overrides the port I/O by forcing that pin as input to the ADC. The
remaining ADC channels/port pins are controlled by the port I/O and can be used as general-purpose I/O.
Writes to the port register or DDR will not have any affect on the port pin that is selected by the ADC. Read
of a port pin which is in use by the ADC will return a 0 if the corresponding DDR bit is at 0. If the DDR bit
is at 1, the value in the port data latch is read.
98
INTERNAL
DATA BUS
AIEN
INTERRUPT
LOGIC
READ DDRB/DDRD
WRITE DDRB/DDRD
WRITE PTB/PTD
READ PTB/PTD
COCO
BUS CLOCK
CONVERSION
COMPLETE
RESET
MC68HC908JL3E Family Data Sheet, Rev. 4
ADIV[2:0]
ADC DATA REGISTER
Figure 9-2. ADC Block Diagram
GENERATOR
CLOCK
ADC
ADC CLOCK
ADICLK
DDRBx/DDRDx
PTBx/PTDx
ADC VOLTAGE IN
ADCVIN
DISABLE
(1 OF 12 CHANNELS)
DISABLE
CHANNEL
SELECT
ADC CHANNEL x
Freescale Semiconductor
ADCx
ADCH[4:0]
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