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MC9S08QE128 Datasheet, PDF (25/52 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit
Electrical Characteristics
Table 12. Control Timing (continued)
Num C
Rating
Symbol
Min
Typ1
Max Unit
Keyboard interrupt pulse width
8 D Asynchronous path2
Synchronous path4
Port rise and fall time —
Low output drive (PTxDS = 0) (load = 50 pF)5
Slew rate control disabled (PTxSE = 0)
Slew rate control enabled (PTxSE = 1)
9C
Port rise and fall time —
High output drive (PTxDS = 1) (load = 50 pF)
Slew rate control disabled (PTxSE = 0)
Slew rate control enabled (PTxSE = 1)
tILIH, tIHIL
100
—
1.5 x tcyc
—
tRise, tFall
—
—
TBD
TBD
tRise, tFall
—
—
TBD
TBD
—
—
ns
—
ns
—
—
ns
—
10 C Stop3 recovery time, from interrupt event to vector fetch tSTPREC
—
6
10
μs
1 Typical values are based on characterization data at VDD = 3.0V, 25°C unless otherwise stated.
2 This is the shortest pulse that is guaranteed to be recognized as a reset or interrupt pin request. Shorter pulses are not
guaranteed to override reset requests from internal sources.
3 To enter BDM mode following a POR, BKGD/MS should be held low during the power-up and for a hold time of tMSH after VDD
rises above VLVD.
4 This is the minimum pulse width that is guaranteed to pass through the pin synchronization circuitry. Shorter pulses may or
may not be recognized. In stop mode, the synchronizer is bypassed so shorter pulses can be recognized in that case.
5 Timing is shown with respect to 20% VDD and 80% VDD levels. Temperature range –40°C to 85°C.
RESET PIN
textrst
Figure 17. Reset Timing
tIHIL
KBIPx
IRQ/KBIPx
tILIH
Figure 18. IRQ/KBIPx Timing
MC9S08QE128 Series Advance Information Data Sheet, Rev. 3
Freescale Semiconductor
25