Terminology and guidelines
3.6 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)
3.7 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.
3.8 Definition: Typical value
A typical value is a specified value for a technical characteristic that:
• Lies within the range of values specified by the operating behavior
• Given the typical manufacturing process, is representative of that characteristic
during operation when you meet the typical-value conditions or other specified
conditions
Typical values are provided as design guidelines and are neither tested nor guaranteed.
K20 Sub-Family Data Sheet, Rev. 4 5/2012.
Freescale Semiconductor, Inc.
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