NOR vs NAND

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NOR-NAND comparison
PARAMETER
NOR
NAND
Capacity
16Mbits  to 1Gb (Toshiba)
512Mbits to 16Gb  (Toshiba)
XIP (execution in place /
code execution)
Yes
No
Performance Erase Write
Read
Very Slow 
Slow
Fast
Fast 
Fast
slow
Strengths
Addressable to every byte
More than 10% higher life expectancy
Erase cycle range
10,000 to 100,000
100,000 to1,000,000
Interface
SRAM-like, memory mapped
Accessed in bursts of 512 bytes; I/O mapped
Access method
Random
Sequential
Price
High
Very low
 
Pic courtesy Toshiba

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