MC68HC705C8ACB

Manufacturer Part NumberMC68HC705C8ACB
ManufacturerFreescale Semiconductor
MC68HC705C8ACB datasheets

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Specifications of MC68HC705C8ACB

Cpu FamilyHC05Device Core Size8b
Frequency (max)2.1MHzInterface TypeSCI/SPI
Program Memory TypeEPROMProgram Memory Size8KB
Total Internal Ram Size304Byte# I/os (max)24
Number Of Timers - General Purpose1Operating Supply Voltage (typ)3.3/5V
Operating Supply Voltage (max)5.5VOperating Supply Voltage (min)3V
Instruction Set ArchitectureCISCOperating Temp Range-40C to 85C
Operating Temperature ClassificationIndustrialMountingThrough Hole
Pin Count42Package TypeSPDIP
Lead Free Status / Rohs StatusNot Compliant  
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Page 64/222

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Freescale Semiconductor, Inc.
Resets
Address:
Read:
Write:
Reset:
Figure 5-2. Programmable COP Reset Register (COPRST)
The programmable COP control register (COPCR) shown in
does these functions:
•
•
•
•
Address:
Read:
Write:
Reset:
Figure 5-3. Programmable COP Control Register (COPCR)
COPF — COP Flag
This read-only bit is set when a timeout of the programmable COP
watchdog occurs or when the clock monitor detects a slow or absent
internal clock. Clear the COPF bit by reading the COP control register.
Reset has no effect on the COPF bit.
Technical Data
64
$001D
Bit 7
6
5
Bit 7
6
5
U
U
U
= Unimplemented
Flags programmable COP watchdog resets
Enables the clock monitor
Enables the programmable COP watchdog
Controls the timeout period of the programmable COP watchdog
$001E
Bit 7
6
5
0
0
0
COPF
0
0
0
= Unimplemented
1 = COP timeout or internal clock failure
0 = No COP timeout and no internal clock failure
Resets
For More Information On This Product,
Go to: www.freescale.com
4
3
2
1
4
3
2
1
U
U
U
U
U = Unaffected
Figure 5-3
4
3
2
1
CME
PCOPE
CM1
U
0
0
0
U = Unaffected
MC68HC705C8A — Rev. 3
Bit 0
Bit 0
U
Bit 0
CM0
0

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