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Appendix A Electrical Characteristics
MC9S12XF - Family Reference Manual, Rev.1.19
1208
Freescale Semiconductor
Table A-17. NVM Reliability Characteristics
Conditions are shown in
Table A-4 unless otherwise noted
Num
C
Rating
Symbol
Min
Typ
Max
Unit
P-Flash Arrays
1
C Data retention at an average junction temperature of TJavg =
85
°C(1) after up to 10,000 program/erase cycles
1. TJavg does not exceed 85°C in a typical temperature prole over the lifetime of a consumer, industrial or automotive
application.
tPNVMRET
15
100(2)
2. Typical data retention values are based on intrinsic capability of the technology measured at high temperature and de-rated
to 25
°C using the Arrhenius equation. For additional information on how Freescale denes Typical Data Retention, please
refer to Engineering Bulletin EB618
—
Years
2
C Data retention at an average junction temperature of TJavg =
85
°C(3) after less than 100 program/erase cycles
3. TJavg does not exceed 85°C in a typical temperature prole over the lifetime of a consumer, industrial or automotive
application.
tPNVMRET
20
—
Years
3
C P-Flash number of program/erase cycles
(-40
°C ≤ tj ≤ 150°C)
nPFLPE
10K
—
Cycles
D-Flash Array
4
C Data retention at an average junction temperature of TJavg =
85
°C
3 after up to 50,000 program/erase cycles
tDNVMRET
5
—
Years
5
C Data retention at an average junction temperature of TJavg =
85
°C
3 after less than 10,000 program/erase cycles
tDNVMRET
10
—
Years
6
C Data retention at an average junction temperature of TJavg =
85
°C
3 after less than 100 program/erase cycles
tDNVMRET
20
—
Years
7
C D-Flash number of program/erase cycles (-40
°C ≤ tj ≤ 150°C)
nDFLPE
50K
—
Cycles
Emulated EEPROM
8
C Data retention at an average junction temperature of TJavg =
85
°C
1after spec. program/erase cycles
tEENVMRET
—
Years
9
C Data retention at an average junction temperature of TJavg =
85
°C
3 after less than 20% spec.program/erase cycles.
(e.g. after <20,000 cycles / Spec 100,000 cycles)
tEENVMRET
10
—
Years
10
C Data retention at an average junction temperature of TJavg =
85
°C
3 after less than 0.2% spec. program/erase cycles
(e.g. after < 200 cycles / Spec 100,000 cycles)
tEENVMRET
20
—
Years
11
C EEPROM number of program/erase cycles with a ratio of
EEE_NVM to EEE_RAM = 8 (-40
°C ≤ tj ≤ 150°C)
nEEPE
100K(4)
4. This represents the number of writes of updated data words to the EEE_RAM partition. Minimum specication (endurance
and data retention) of the Emulated EEPROM array is based on the minimum specication of the D-Flash array per item 6.
1M(5)
5. This represents the number of writes of updated data words to the EEE_RAM partition. Typical endurance performance for
the Emulated EEPROM array is based on typical endurance performance and the EEE algorithm implemented on this
product family. Spec. table quotes typical endurance evaluated at 25
°C for this product family.
—
Cycles
12
C EEPROM number of program/erase cycles with a ratio of
EEE_NVM to EEE_RAM = 128 (-40
°C ≤ tj ≤ 150°C)
nEEPE
—
Cycles
13
C EEPROM number of program/erase cycles with a ratio of
EEE_NVM to EEE_RAM = 16384(6) (-40
°C ≤ tj ≤ 150°C)
6. This is equivalent to using a single byte or aligned word in the EEE_RAM with 32K D-Flash allocated for EEEPROM
nEEPE
—
Cycles