MC68HC705C8ACB Freescale Semiconductor, MC68HC705C8ACB Datasheet - Page 39

• Manufacturer Part Number: MC68HC705C8ACB
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC705C8ACB

• Cpu Family: HC05
• Device Core Size: 8b
• Frequency (max): 2.1MHz
• Interface Type: SCI/SPI
• Program Memory Type: EPROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 304Byte
• # I/os (max): 24
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 42
• Package Type: SPDIP
• Lead Free Status / Rohs Status: Not Compliant

MC68HC705C8A — Rev. 3
MOTOROLA
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
Addr.
Port D Fixed Input Register
Port A Data Direction
Port B Data Direction
Port C Data Direction
Port C Data Register
Port A Data Register
Port B Data Register
Register (DDRA)
Register (DDRB)
Register Name
Unimplemented
Unimplemented
Unimplemented
See page 78.
See page 81.
See page 85.
See page 88.
See page 79.
See page 82.
See page 86.
(PORTB)
(PORTC)
(PORTD)
(PORTA)
(DDRC)
Figure 2-2. I/O Register Summary (Sheet 1 of 4)
Freescale Semiconductor, Inc.
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
For More Information On This Product,
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
DDRC7 DDRC6
DDRA7 DDRA6
DDRB7 DDRB6
Bit 7
PC7
PD7
PA7
PB7
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0
0
0
= Unimplemented
PB6
PC6
PA6
6
0
0
0
Memory
DDRA5
DDRB5
DDRC5
PB5
PC5
PA5
SS
5
0
0
0
U = Unaffected
DDRC4
DDRA4
DDRB4
Unaffected by reset
Unaffected by reset
Unaffected by reset
Unaffected by reset
SCK
PB4
PC4
PA4
4
0
0
0
DDRA3
DDRB3
DDRC3
MOSI
PC3
PA3
PB3
3
0
0
0
DDRC2
DDRA2
DDRB2
MISO
PC2
PA2
PB2
2
0
0
0
Bootloader ROM
DDRA1
DDRB1
DDRC1 DDRC0
TDO
PC1
PA1
PB1
Technical Data
1
0
0
0
Memory
DDRA0
DDRB0
Bit 0
PC0
PA0
PB0
RDI
0
0
0