MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 313
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MC908MR8MPE
Manufacturer Part Number
MC908MR8MPE
Description
IC MCU 8BIT 8K FLASH 28-PDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908MR8VFAE.pdf
(372 pages)
Specifications of MC908MR8MPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM
Number Of I /o
12
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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18.4.1 ADC Port I/O Pins
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
INTERRUPT
ADC
INTERNAL
DATA BUS
INTERRUPT
LOGIC
AIEN
READ PTA
PTA6/ATD6:PTA0/ATD6 are general-purpose input/output (I/O) pins
that are shared with the ADC channels.
The channel select bits define which ADC channel/port pin will be used
as the input signal. The ADC overrides the port logic when that port is
selected by the ADC multiplexer. The remaining ADC channels/port pins
are controlled by the port logic and can be used as general-purpose
input/output (I/O) pins. Writes to the port register or data direction
register (DDR) will not have any effect 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
logic 0.
CONVERSION
COMPLETE
CGMXCLK
Figure 18-1. ADC Block Diagram
f
OP
Analog-to-Digital Converter (ADC)
ADC CLOCK
ADC DATA REGISTERS
ADIV[2:0]
GENERATOR
CLOCK
ADC
ADICLK
ADC VOLTAGE IN
ADVIN
DISABLE
Analog-to-Digital Converter (ADC)
CHANNEL
SELECT
ADC CHANNEL X
Functional Description
PTAx
Technical Data
ADCH6:ADCH0
313
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