参数资料
型号: MC68HC05C8AMFB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 107/116页
文件大小: 781K
代理商: MC68HC05C8AMFB
Electrical Specifications
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A Data Sheet, Rev. 5.1
90
Freescale Semiconductor
13.8 5.0-V Control Timing
Characteristic(1)
1. VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = –40°C to +125°C, unless otherwise noted.
Symbol
Min
Max
Unit
Oscillator frequency
Crystal
External clock
fOSC
dc
4.2
MHz
Internal operating frequency
Crystal
External clock
fOP
dc
2.1
MHz
Internal clock 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
2. Because a 2-bit prescaler in the timer must count four internal cycles (tCYC), this is the limiting minimum factor in determin-
ing the timer resolution.
tRESL
tTH, tTL
tTLTL
4.0
125
Note(3)
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.
tCYC
ns
tCYC
Interrupt pulse width low (edge-triggered)
tilih
125
ns
Interrupt pulse period
tILIL
Note(4)
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.
tCYC
OSC1 pulse width
toh, tol
90
ns
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