Terminology and guidelines
5.5 Result of exceeding a rating
40
30
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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10
0
Operating rating
Measured characteristic
5.6 Relationship between ratings and operating requirements
Fatal range
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 range
Fatal range
Expected permanent failure
No permanent failure
Expected permanent failure
–∞
∞
Handling (power off)
5.7 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.
MC56F8455x Advance Information Data Sheet, Rev. 2, 06/2012.
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Freescale Semiconductor, Inc.
Preliminary
General Business Information
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