Datasheet

Table 40-38. Maximum Operating Frequency (Device Variant B and D)
VDD range NVM Wait States Maximum Operating Frequency Units
2.7V to 3.63V 0 24 MHz
1 48
Note:  With on this flash technology, a max number of 8 consecutive write is allowed per row. Once this
number is reached, a row erase is mandatory.
Table 40-39. Flash Endurance and Data Retention (Device Variant A)
Symbol Parameter Conditions Min. Typ. Max. Units
Ret
NVM25k
Retention after up to 25k Average ambient 55°C 10 50 - Years
Ret
NVM2.5k
Retention after up to 2.5k Average ambient 55°C 20 100 - Years
Ret
NVM100
Retention after up to 100 Average ambient 55°C 25 >100 - Years
Cyc
NVM
Cycling Endurance
(1)
-40°C < Ta < 125°C 10K - - Cycles
Note: 
1. An endurance cycle is a write and an erase operation.
Table 40-40. Flash Endurance and Data Retention (Device Variant B and D)
Symbol Parameter Conditions Min. Typ. Max. Units
Ret
NVM25k
Retention after up to 25k Average ambient 55°C 10 50 - Years
Ret
NVM2.5k
Retention after up to 2.5k Average ambient 55°C 20 100 - Years
Ret
NVM100
Retention after up to 100 Average ambient 55°C 25 >100 - Years
Cyc
NVM
Cycling Endurance
(1)
-40°C < Ta < 125°C 25k - - Cycles
Note: 
1. An endurance cycle is a write and an erase operation.
Table 40-41. EEPROM Emulation
(1)
Endurance and Data Retention (Device Variant A)
Symbol Parameter Conditions Min. Typ. Max. Units
Ret
EEPROM100k
Retention after up to 100k Average ambient 55°C 10 50 - Years
Ret
EEPROM10k
Retention after up to 10k Average ambient 55°C 20 100 - Years
Cyc
EEPROM
Cycling Endurance
(2)
-40°C < Ta < 125°C 40K - - Cycles
Table 40-42. EEPROM Emulation
(1)
Endurance and Data Retention (Device Variant B and D)
Symbol Parameter Conditions Min. Typ. Max. Units
Ret
EEPROM100k
Retention after up to 100k Average ambient 55°C 10 50 - Years
Ret
EEPROM10k
Retention after up to 10k Average ambient 55°C 20 100 - Years
Cyc
EEPROM
Cycling Endurance
(2)
-40°C < Ta < 125°C 100k - - Cycles
SAM D21 Family
AEC-Q100 125°C Specifications
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 1124