Terminology and guidelines
8.5 Result of exceeding a rating
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30
20
The likelihood of permanent chip failure increases rapidly as
soon as a characteristic begins to exceed one of its operating ratings.
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0
Measured characteristic
Operating rating
8.6 Relationship between ratings and operating requirements
Fatal range
Operating rating (min.)
Operating requirement (min.)
Operating requirement (max.)
Operating rating (max.)
Degraded operating range Normal operating range Degraded operating range
Fatal range
Expected permanent failure
- No permanent failure
- Possible decreased life
- Possible incorrect operation
- No permanent failure
- Correct operation
- No permanent failure
- Possible decreased life
- Possible incorrect operation
Expected permanent failure
–∞
∞
Operating (power on)
Fatal range
Handling rating (min.)
Expected permanent failure
–∞
Handling range
No permanent failure
Handling (power off)
Handling rating (max.)
Fatal range
Expected permanent failure
∞
8.7 Guidelines for ratings and operating requirements
Follow these guidelines for ratings and operating requirements:
• Never exceed any of the chip’s ratings.
• During normal operation, don’t exceed any of the chip’s operating requirements.
• If you must exceed an operating requirement at times other than during normal
operation (for example, during power sequencing), limit the duration as much as
possible.
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Freescale Semiconductor, Inc.
Kinetis KL33 With Up To 256 KB Flash, Rev3, 08/2014.