參數資料
型號: MC68HC05C9AMB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
封裝: SHRINK, PLASTIC, DIP-42
文件頁數: 118/124頁
文件大?。?/td> 774K
代理商: MC68HC05C9AMB
5.0-Volt Control Timing
MC68HC05C9A Advance Information Data Sheet, Rev. 5.1
Freescale Semiconductor
93
12.7 5.0-Volt Control Timing
Characteristic(1)
Symbol
Min
Max
Unit
Frequency of operation
Crystal
External clock
fOSC
dc
4.2
MHz
Internal operating frequency (fOSC ÷ 2)
Crystal
External clock
fOP
dc
2.1
MHz
Cycle time
tcyc
480
ns
Crystal oscillator startup time
tOXOV
—100
ms
Stop recovery startup time (crystal oscillator)
tILCH
—100
ms
RESET pulse width
tRL
1.5
tcyc
Timer
Resolution(2)
Input capture pulse width
Input capture pulse period
tRESL
tTH, tTL
tTLTL
4.0
125
(3)
tcyc
ns
tcyc
Interrupt pulse width low (edge-triggered)
tILIH
125
ns
Interrupt pulse period
tILIL
(4)
—tcyc
OSC1 pulse width
tOH, tOL
90
ns
1. VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = –40 to +125°C, unless otherwise noted
2. Because a 2-bit prescaler in the timer must count four internal cycles (tCYC), this is the limiting minimum factor in deter-
mining the timer resolution.
3. 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.
4. The minimum tILIL should not be less than the number of cycle times it takes to execute the interrupt service routine plus
19 tCYC.
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