44.11 NVM Characteristics

Table 44-30. NVM Max Speed Characteristics
ConditionsCPU Fmax (MHz)
0WS1WS2WS
PL0 (-40/85°C)VDD>1.6 V688
VDD>2.7 V7.588
PL2 (-40/85°C)VDD>1.6 V142832
VDD>2.7 V243232
Table 44-31. NVM Timing Characteristics(1)
SymbolParameterMaxUnits
tFPPPage programming time2.5ms
tFRERow erase time6
Note:
  1. These values are based on simulation. They are not covered by production test limits or characterization.

For this Flash technology, a maximum number of 8 consecutive writes is allowed per row. Once this number is reached, a row erase is mandatory.

Table 44-32. Flash Endurance and Data Retention
SymbolParameterConditionsMin.Typ.Units
RetNVM25kRetention after up to 25kAverage ambient 55°C1050Years
RetNVM2.5kRetention after up to 2.5kAverage ambient 55°C20100Years
RetNVM100Retention after up to 100Average ambient 55°C25>100Years
CycNVMCycling Endurance(1)-40°C < Ta < 85°C25K100KCycles
Note:
  1. An endurance cycle is a write and an erase operation.
Table 44-33. EEPROM Emulation(1) Reliability Characteristics
SymbolParameterConditionsMin.Typ.Units
RetEE100kRetention after up to 100kAverage ambient 55°C1050Years
RetEE10kRetention after up to 10kAverage ambient 55°C20100Years
CycEECycling Endurance(2)-40°C < Ta < 85°C100K400KCycles
Note:
  1. The EEPROM emulation is a software emulation described in the App note AT03265.
  2. An endurance cycle is a write and an erase operation.
Table 44-34. Flash Erase and Programming Current
SymbolParameterTyp.Units
IDDNVMMaximum current (peak) during whole programming or erase operation10mA