MK20DN512ZVMB10 FREESCALE [Freescale Semiconductor, Inc], MK20DN512ZVMB10 Datasheet - Page 35

• Manufacturer Part Number: MK20DN512ZVMB10
• Description: K20 Sub-Family Data Sheet
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

While different partitions of the FlexNVM are available, the intention is that a single
choice for the FlexNVM partition code and EEPROM data set size is used throughout the
entire lifetime of a given application. The EEPROM endurance equation and graph
shown below assume that only one configuration is ever used.
Writes_subsystem =
where
Freescale Semiconductor, Inc.
• Writes_subsystem — minimum number of writes to each FlexRAM location for
• EEPROM — allocated FlexNVM for each EEPROM subsystem based on DEPART;
• EEESPLIT — FlexRAM split factor for subsystem; entered with the Program
• EEESIZE — allocated FlexRAM based on DEPART; entered with Program Partition
• Write_efficiency —
• n
subsystem (each subsystem can have different endurance)
entered with Program Partition command
Partition command
command
nvmcycd
• 0.25 for 8-bit writes to FlexRAM
• 0.50 for 16-bit or 32-bit writes to FlexRAM
— data flash cycling endurance
EEPROM – 2 × EEESPLIT × EEESIZE
K20 Sub-Family Data Sheet Data Sheet, Rev. 6, 9/2011.
EEESPLIT × EEESIZE
Peripheral operating requirements and behaviors
× Write_efficiency × n
nvmcycd
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