Datasheet

Appendix A Electrical Characteristics
MC9S08DZ128 Series Data Sheet, Rev. 1
438 Freescale Semiconductor
Figure A-9. Typical Frequency Deviation vs Temperature (ICS Trimmed to 16MHz bus@25˚C, 5V, FEI)
1
A.12 AC Characteristics
This section describes ac timing characteristics for each peripheral system.
A.12.1 Control Timing
1. Based on the average of several hundred units from a typical characterization lot.
Table A-13. Control Timing
Num C Rating Symbol Min Typical
1
1
Typical data was characterized at 5.0 V, 25°C unless otherwise stated.
Max Unit
1D
Bus frequency (t
cyc
= 1/f
Bus
)f
Bus
dc — 20 MHz
2 D Internal low-power oscillator period
t
LPO
800 1500 μs
3D
External reset pulse width
2
2
This is the shortest pulse that is guaranteed to be recognized as a RESET pin or pin interrupt request. Shorter pulses are not
guaranteed to override reset requests from internal sources.
t
extrst
100
—ns
4D
Reset low drive
3
t
rstdrv
34 x t
cyc
—ns
5 D Active background debug mode latch setup time
t
MSSU
500 — ns
6 D Active background debug mode latch hold time
t
MSH
100 — ns
7D
IRQ/PIAx/ PIBx/PIDx/PIJx pulse width
Asynchronous path
2
Synchronous path
3
t
ILIH,
t
IHIL
100
1.5 t
cyc
——ns
8C
Port rise and fall time (load = 50 pF)
4
Slew rate control disabled t
Rise
, t
Fall
—3 ns
Slew rate control enabled — 30
Deviation from Trimmed Frequency
Temperature ( ˚C )
85250–40 105
–2%
–1%
+2%
125
+1%
0