MC68HC908BD48IFB Freescale Semiconductor, MC68HC908BD48IFB Datasheet - Page 155

• Manufacturer Part Number: MC68HC908BD48IFB
• Description: IC MCU 48K FLASH 6MHZ USB 44PQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908BD48IFB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 6MHz
• Connectivity: I²C, USB
• Peripherals: POR, PWM
• Number Of I /o: 32
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

12.4.1 ADC Port I/O Pins
MC68HC908BD48
Freescale Semiconductor
INTERNAL
DATA BUS
AIEN
INTERRUPT
LOGIC
READ DDRC
WRITE DDRC
WRITE PTC
READ PTC
COCO
BUS CLOCK
—
Rev. 2.1
CONVERSION
COMPLETE
PTC5–PTC0 are general-purpose I/O pins that are shared with the ADC
channels. The channel select bits (ADC status control register, $005D),
define which ADC channel/port pin will be used as the input signal. The
ADC overrides the port I/O logic by forcing that pin as input to the ADC.
The remaining ADC channels/port pins are controlled by the port I/O
logic and can be used as general-purpose I/O. Writes to the port register
RESET
Figure 12-1. ADC Block Diagram
ADC DATA REGISTER
Analog-to-Digital Converter (ADC)
GENERATOR
ADIV[2:0]
CLOCK
ADC
ADC CLOCK
DDRCx
PTCx
ADC VOLTAGE IN
ADCVIN
DISABLE
DISABLE
(1 OF 6 CHANNELS)
Analog-to-Digital Converter (ADC)
CHANNEL
SELECT
ADC CHANNEL x
PTCx/ADCx
Data Sheet
ADCH[4:0]
155