![]() ![]() ![]() NOR flash provides support to bad block management. It referred to Code-storage applications. NOR memory ideal for runs small code instructions program. We can execute the code directly from NOR without copying into RAM. Data Reading process for NOR and RAM are similar. It provides random or sequentially access memory. In the circuit of flash memory, memory cells are connected in parallel. MMU (Memory Management Unit) helps NAND to the first page the content or copied into RAM and then executed. Each block contains the different size of pages various from bytes. ![]() NAND Memory used the concept of the block to access and erases the data. NAND memory has needed less chip area hence more data density. In today is an environment where all devices require high data density, faster speed access and cost-effective chip for data storage. NAND and NOR flash memory both have different architecture and used for specific purpose. Types of Flash Memoryįlash memory is available in two kinds NAND Flash and NOR Flash Memory. In hard-disk, disk rotation takes time to move on the particular cylinder, track or sector.However,in a flash, no rotating time disc has created a barrier for fast access. Flash memory gives faster access to data content as compared to hard disk. Flash memory was used in many devices like in form SD card, Pen-drive (moveable storage), camera card and video card, and so forth. However, flash memory does not require the power for holding data. Flash memory is different from RAM.RAM is volatile memory, needs electricity and power to maintain its content. Flash memory is an electronic chip that retains its stored data without any power. ![]()
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