参数资料
型号: MC68HC705G1FU
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP64
封装: QFP-64
文件页数: 21/124页
文件大小: 732K
代理商: MC68HC705G1FU
MC68HC05G1
MOTOROLA
13-7
ELECTRICAL SPECIFICATIONS
13
Table 13-6 Control Timing for 3.3V 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
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
Watchdog RESET output pulse width
tDOGL
1.5
tCYC
Watchdog time-out
tDOG
220
–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
113
相关PDF资料
PDF描述
MC68HC05G1B 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
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MC68HC705JB2P 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP20
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