Electrical Specifications
Control Timing
19.7 Control Timing
Characteristic(1)
Symbol
Min
Max
Unit
Frequency of operation(2)
Crystal option
External clock option(3)
1
dc(4)
fOSC
8
32.8
MHz
fOP
tIRL
Internal operating frequency
—
8.2
—
MHz
ns
RESET input pulse width low(5)
50
1. VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc; timing shown with respect to 20% VDD and 70% VDD, unless otherwise noted
2. See 19.8 Serial Peripheral Interface Characteristics for more information.
3. No more than 10% duty cycle deviation from 50%.
4. Some modules may require a minimum frequency greater than dc for proper operation; see appropriate table for this
information.
5. Minimum pulse width reset is guaranteed to be recognized. It is possible for a smaller pulse width to cause a reset.
MC68HC908MR32 • MC68HC908MR16 — Rev. 6.0
MOTOROLA
Data Sheet
293
Electrical Specifications
FREESCALE [ Freescale ]
