MC68HC908AP8CB Freescale Semiconductor, MC68HC908AP8CB Datasheet - Page 251

• Manufacturer Part Number: MC68HC908AP8CB
• Description: IC MCU 8K FLASH 8MHZ 42SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AP8CB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, IRSCI, SCI, SPI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 32
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

15.3.3 Conversion Time
Conversion starts after a write to the ADSCR. One conversion will take between 16 and 17 ADC clock
cycles, therefore:
Freescale Semiconductor
AIEN
INTERRUPT
INTERNAL
DATA BUS
LOGIC
Number of bus cycles = conversion time × bus frequency
COCO
Conversion time =
READ DDRAx
WRITE DDRAx
WRITE PTAx
READ PTAx
CONVERSION
COMPLETE
BUS CLOCK
CGMXCLK
RESET
MC68HC908AP Family Data Sheet, Rev. 4
Figure 15-2. ADC Block Diagram
ADC DATA REGISTERS
16 to17 ADC cycles
ADIV[2:0]
ADRH0
ADC frequency
GENERATOR
10-BIT ADC
DDRAx
PTAx
CLOCK
ADRL0
ADRL1
ADRL2
ADRL3
ADCICLK
ADICLK
VOLTAGE IN
DISABLE
(V
ADC
ADIN
)
2-BIT UP-COUNTER
DISABLE
CHANNEL
ADC0–ADC7
(8 CHANNELS)
SELECT
MUX
ADCH[4:0]
Functional Description
AUTO[1:0]
ASCAN
PTAx/ADCx
VREFH
VREFL
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