In NOR flash, data is stored by applying a voltage that traps electrons on the floating gate. When electrons are present, the cell represents a binary "0"; when they are absent, it represents a "1". This charge remains even when power is removed, making the memory non-volatile.

NOR Flash is a non-volatile memory used for reliable, fast read speeds and robust data retention. It is ideal for storing executable code in embedded systems, consumer electronics, automotive ECUs, industrial devices, and IoT. NOR Flash supports quick boot times and direct code execution, making it essential for high-reliability applications despite the rise of NAND flash.