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MC908QT4MPE Datasheet(PDF) 157 Page - Freescale Semiconductor, Inc

Part # MC908QT4MPE
Description  Microcontrollers
PDF  184 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC908QT4MPE Datasheet(HTML) 157 Page - Freescale Semiconductor, Inc

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3-V Control Timing
MC68HC908QY/QT Family Data Sheet, Rev. 5
Freescale Semiconductor
157
16.11 3-V Control Timing
Figure 16-7. RST and IRQ Timing
Characteristic(1)
1. VDD = 2.7 to 3.3 Vdc, VSS = 0 Vdc, TA = TL to TH; timing shown with respect to 20% VDD and 70% VDD, unless otherwise
noted.
Symbol
Min
Max
Unit
Internal operating frequency
fOP (fBus)
—4
MHz
Internal clock period (1/fOP)tcyc
250
—
ns
RST input pulse width low
tRL
200
—
ns
IRQ interrupt pulse width low (edge-triggered)
tILIH
200
—
ns
IRQ interrupt pulse period
tILIL
Note(2)
2. The minimum period is the number of cycles it takes to execute the interrupt service routine plus 1 tcyc.
—
tcyc
RST
IRQ
tRL
tILIH
tILIL



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