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AXEL ULite Hardware Manual
Attribute
Read Speed
3.2.1.1
Write endurance
The write endurance of SLC floating-gate NOR flash is typically equal to
or greater than that of NAND flash, while MLC NOR and NAND flash
have similar endurance capabilities. Examples of endurance cycle ratings
listed in datasheets for NAND and NOR flash are provided.
Type of flash
memory
SLC NAND
MLC NAND
TLC NAND
SLC (floating-gate)
NOR
MLC (floating-gate)
NOR
However, by applying certain algorithms and design paradigms such as
wear leveling and memory over-provisioning, the endurance of a storage
system can be tuned to serve specific requirements.
1
https://en.wikipedia.org/wiki/Flash_memory#Distinction_between_NOR_and_NAND_flash
v.1.0.2
NAND
Tab. 7: comparison
Endurance rating
(Erases per block)
100,000
5,000 to 10,000 for
medium-capacity
applications;
1,000 to 3,000 for high-
capacity applications
1,000
100,000 to 1,000,000
100,000
Tab. 8: comparison
August, 2019
NOR
Good
Example(s) of flash
memory
Samsung OneNAND
KFW4G16Q2M
Samsung K9G8G08U0M
(Example for medium-
capacity applications)
Samsung 840
Numonyx M58BW
(Endurance rating of
100,000 erases per block);
Spansion S29CD016J
(Endurance rating of
1,000,000 erases per
block)
Numonyx J3 flash
1
20/65
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