參數(shù)資料
型號: MK51DX256ZCLL10
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PQFP100
封裝: 14 X 14 MM, LQFP-100
文件頁數(shù): 29/74頁
文件大?。?/td> 1031K
代理商: MK51DX256ZCLL10
6.4.1.4 Reliability specifications
Table 23. NVM reliability specifications
Symbol
Description
Min.
Typ.1
Max.
Unit
Notes
Program Flash
tnvmretp10k Data retention after up to 10 K cycles
5
TBD
years
tnvmretp1k Data retention after up to 1 K cycles
10
TBD
years
tnvmretp100 Data retention after up to 100 cycles
15
TBD
years
nnvmcycp
Cycling endurance
10 K
TBD
cycles
Data Flash
tnvmretd10k Data retention after up to 10 K cycles
5
TBD
years
tnvmretd1k Data retention after up to 1 K cycles
10
TBD
years
tnvmretd100 Data retention after up to 100 cycles
15
TBD
years
nnvmcycd
Cycling endurance
10 K
TBD
cycles
FlexRAM as EEPROM
tnvmretee100 Data retention up to 100% of write endurance
5
TBD
years
tnvmretee10 Data retention up to 10% of write endurance
10
TBD
years
tnvmretee1 Data retention up to 1% of write endurance
15
TBD
years
nnvmwree16
nnvmwree128
nnvmwree512
nnvmwree4k
nnvmwree32k
Write endurance
EEPROM backup to FlexRAM ratio = 16
EEPROM backup to FlexRAM ratio = 128
EEPROM backup to FlexRAM ratio = 512
EEPROM backup to FlexRAM ratio = 4096
EEPROM backup to FlexRAM ratio =
32,768
35 K
315 K
1.27 M
10 M
80 M
TBD
writes
1. Typical data retention values are based on intrinsic capability of the technology measured at high temperature derated to
25°C. For additional information on how Freescale defines typical data retention, please refer to Engineering Bulletin
EB618.
2. Data retention is based on Tjavg = 55°C (temperature profile over the lifetime of the application).
3. Cycling endurance represents number of program/erase cycles at -40°C ≤ Tj ≤ 125°C.
4. Write endurance represents the number of writes to each FlexRAM location at -40°C ≤Tj ≤ 125°C influenced by the cycling
endurance of the FlexNVM (same value as data flash) and the allocated EEPROM backup per subsystem. Minimum value
assumes all byte-writes to FlexRAM.
6.4.1.5 Write endurance to FlexRAM for EEPROM
When the FlexNVM partition code is not set to full data flash, the EEPROM data set size
can be set to any of several non-zero values.
Peripheral operating requirements and behaviors
K51 Sub-Family Data Sheet Data Sheet, Rev. 5, 5/2011.
Freescale Semiconductor, Inc.
Preliminary
35
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