K11P121M50SF4 Datasheet, PDF (32/59 Pages) Freescale Semiconductor, Inc – K11 Sub-Family Data Sheet

Peripheral operating requirements and behaviors
Table 22. NVM reliability specifications (continued)
Symbol Description
Min.
n_nvmcycp Cycling endurance
10 K
Data Flash
t_nvmretd10k
t_nvmretd1k
n_nvmcycd
Data retention after up to 10 K cycles
5
Data retention after up to 1 K cycles
20
Cycling endurance
10 K
FlexRAM as EEPROM
t_nvmretee100 Data retention up to 100% of write endurance
5
t_nvmretee10 Data retention up to 10% of write endurance
20
Write endurance
n_nvmwree16
n_nvmwree128
n_nvmwree512
n_nvmwree4k
• EEPROM backup to FlexRAM ratio = 16
• EEPROM backup to FlexRAM ratio = 128
• EEPROM backup to FlexRAM ratio = 512
• EEPROM backup to FlexRAM ratio = 4096
35 K
315 K
1.27 M
10 M
Typ.¹
50 K
50
100
50 K
50
100
175 K
1.6 M
6.4 M
50 M
Max.
—
—
—
—
—
—
—
—
—
—
Unit
cycles
years
years
cycles
years
years
writes
writes
writes
writes
Notes
2
2
3
1. Typical data retention values are based on measured response accelerated at high temperature and derated to a constant
25°C use profile. Engineering Bulletin EB618 does not apply to this technology. Typical endurance defined in Engineering
Bulletin EB619.
2. Cycling endurance represents number of program/erase cycles at -40°C ≤ T_j ≤ °C.
3. Write endurance represents the number of writes to each FlexRAM location at -40°C ≤Tj ≤ °C influenced by the cycling
endurance of the FlexNVM (same value as data flash) and the allocated EEPROM backup per subsystem. Minimum and
typical values assume all byte-writes to FlexRAM.
6.4.2 EzPort Switching Specifications
Table 23. EzPort switching specifications
Num
EP1
EP1a
EP2
EP3
EP4
EP5
EP6
EP7
EP8
EP9
Description
Operating voltage
EZP_CK frequency of operation (all commands except
READ)
EZP_CK frequency of operation (READ command)
EZP_CS negation to next EZP_CS assertion
EZP_CS input valid to EZP_CK high (setup)
EZP_CK high to EZP_CS input invalid (hold)
EZP_D input valid to EZP_CK high (setup)
EZP_CK high to EZP_D input invalid (hold)
EZP_CK low to EZP_Q output valid
EZP_CK low to EZP_Q output invalid (hold)
EZP_CS negation to EZP_Q tri-state
Min.
1.71
—
—
2 x t_{EZP_CK}
5
5
2
5
—
0
—
Max.
3.6
f_SYS/2
f_SYS/8
—
—
—
—
—
—
12
Unit
V
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
K11 Sub-Family Data Sheet Data Sheet, Rev. 3, 08/2012.
32
Freescale Semiconductor, Inc.