參數(shù)資料
型號： MC68HC05F8FU
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 1.8 MHz, MICROCONTROLLER, PQFP64
封裝： PLASTIC, QFP-64
文件頁數(shù)： 22/126頁
文件大?。?/td> 1084K
代理商： MC68HC05F8FU
MOTOROLA
13-6
MC68HC05F8
ELECTRICAL SPECIFICATIONS
13
Table 13-7 Control Timing for 2.7V Operation
(VDD=3.3Vdc ±10%, VSS=0Vdc, temperature range=0 to 70°C)
CHARACTERISTICS
SYMBOL
MINIMUM
MAXIMUM
UNIT
Frequency of operation
Crystal option
External clock option
fOSC
–
dc
3.58
MHz
Internal operating frequency (fOSC/2)
Crystal
External clock
fOP
–
dc
1.8
MHz
Processor cycle time
tCYC
556
–
ns
Crystal oscillator start-up time
tOXOV
–
100
ms
Stop recovery start-up time (crystal oscillator)
tILCH
100
ms
External RESET pulse width
tRL
1.5
–
tCYC
Power-on RESET output pulse width
4064 cycle
16 cycle
tPORL
4064
16
–
tCYC
Watchdog RESET output pulse width
tDOGL
1.5
–
tCYC
Watchdog time-out
tDOG
0.25
4
sec
Timer A
Resolution(1)
Input capture pulse width
Input capture pulse period
tARESL
tTH, tTL
tTLTL
4
250
–(2)
64
–
tCYC
ns
tCYC
Timer B
Resolution
tBRESL
2.25
18
s
Interrupt pulse width (edge-triggered)
tILIH
250
–
ns
Interrupt pulse period
tILIL
–(3)
–tCYC
(1) Since a 2-bit prescaler in the timer must count four external cycles (tCYC), this is the limiting factor
in determining the timer resolution.
(2) The minimum period tTLTL should not be less than the number of cycle times it takes to execute
the capture interrupt service routine plus 24 tCYC.
(3) The minimum period tILIL should not be less than the number of cycle times it takes to execute the
interrupt service routine plus 21 tCYC.
TPG
116
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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