MC68HC705C8AVFNE Freescale Semiconductor, MC68HC705C8AVFNE Datasheet - Page 63
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MC68HC705C8AVFNE
Manufacturer Part Number
MC68HC705C8AVFNE
Description
IC MCU 8BIT 44-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet
1.MC68HC705C8AB.pdf
(222 pages)
Specifications of MC68HC705C8AVFNE
Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
304 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC705C8AVFNE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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5.3.3.1 Programmable COP Watchdog Reset
MC68HC705C8A — Rev. 3
MOTOROLA
INTERNAL
COPRST
CLOCK
(f
OP
)
PROGRAMMABLE COP WATCHDOG (MC68HC705C8 TYPE)
4
Figure 5-1. Programmable COP Watchdog Diagram
4
A timeout of the 18-stage ripple counter in the programmable COP
watchdog generates a reset.
programmable COP watchdog. Two registers control and monitor
operation of the programmable COP watchdog:
To clear the programmable COP watchdog and begin a new timeout
period, write these values to the COP reset register (COPRST).
See
The $55 write must precede the $AA write. Instructions may be executed
between the write operations provided that the COP watchdog does not
time out before the second write.
2
1. $55
2. $AA
•
•
Freescale Semiconductor, Inc.
2
Figure
For More Information On This Product,
2
COP reset register (COPRST), $001D
COP control register (COPCR), $001E
2
2
2
5-2.
Go to: www.freescale.com
2
2
2
2
2
Resets
2
2
2
2
Figure 5-1
2
2
2
13
2
CM0
CM1
2
2
2
2
2
15
17
19
21
is a diagram of the
2
2
2
PCOPE
Reset Sources
Technical Data
RESET
Resets
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