參數(shù)資料
型號(hào): MC68HC705L1B
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封裝: SDIP-56
文件頁(yè)數(shù): 93/102頁(yè)
文件大小: 632K
代理商: MC68HC705L1B
MOTOROLA
11-8
MC68HC05L1
ELECTRICAL SPECIFICATIONS
11
Table 11-7 Control Timing for 2.7V Operation
(VDD=2.7Vdc ±10%, VSS=0Vdc, temperature range=0 to 70°C)
CHARACTERISTICS
SYMBOL
MINIMUM
MAXIMUM
UNIT
Frequency of operation
Crystal option
External clock option
fOSC
dc
2.0
MHz
Internal operating frequency (fOSC/2)
Crystal
External clock
fOP
dc
1.0
MHz
Processor cycle time
tCYC
1000
ns
Crystal oscillator start-up time
tOXOV
100
ms
Stop recovery start-up time (crystal oscillator)
tILCH
100
ms
RC oscillator stabilization time
tADRC
100
ms
A/D converter stabilization time
tADON
500
s
External RESET pulse width
tRL
1.5
tCYC
Power-on RESET output pulse width
4064 cycle
16 cycle
tPORL
4064
16
tCYC
Timer
Resolution(1)
Input capture pulse width
Input capture pulse period
tRESL
tTH, tTL
tTLTL
4
250
(2)
tCYC
ns
tCYC
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
88
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