MC68HC908MR8CP Freescale Semiconductor, MC68HC908MR8CP Datasheet - Page 313

• Manufacturer Part Number: MC68HC908MR8CP
• Description: IC MCU 8K FLASH 8MHZ PWM 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CP

• 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 ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

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
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