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Flash memory is an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash memory, NOR flash and NAND flash, are named for the NOR and NAND logic gates. Both use the same cell design, consisting of floating gate MOSFETs.
Definition. NOR flash memory. By. Ben Lutkevich, Site Editor. Brien Posey. Rodney Brown, TechTarget. What is NOR flash memory? NOR flash memory is one of two types of non-volatile storage technologies. NAND is the other. Non-volatile memory doesn't require power to retain data.
2018年7月23日 · The NOR Flash architecture provides enough address lines to map the entire memory range. This gives the advantage of random access and short read times, which makes it ideal for code execution. Another advantage is 100% known good bits for the life of the part.
快閃記憶體 （ flash memory ，中國大陸譯 閃存 [1] [2] ，中國大陸又稱 閃速存儲器 [3] [2] ），是一種像 唯讀記憶體 一樣的記憶體，允許對資料進行多次的刪除、加入或覆寫。 這種記憶體廣泛用於 記憶卡 、 隨身碟 之中，因其可迅速改寫的特性非常適合 手機 、 筆記型電腦 、 遊戲主機 、 掌機 之間的檔案轉移，也曾經是 數位相機 、 數位隨身聽 和 PDA 的主要資料轉移方式。 早期的快閃記憶體只要進行一次刪除就會連帶清除掉所有的資料，但目前已可以精確到對指定的資料進行單個刪除。
by Electrical-Technology. NOR flash memory is a type of non-volatile Flash memory that is used in almost all electronic devices to store data. It has been widely used since the early 1990s and usually comes in the form of ICs.
2024年3月18日 · NOR flash memory is called after the NOR logic gate, which is actually used in its circuitry. It was first developed in the 1980s and has been adopted widely in embedded systems such as microcontrollers, electronics, and network routers. NOR is a non-volatile storage technology meaning that it doesn’t require power to retain data.
2024年3月8日 · Nand Flash. 8 Mar 2024 • 4 minute read. In the world of flash memory, two primary types dominate the market: NOR flash and NAND flash. While they both serve as essential components in various electronic devices, they differ significantly in terms of structure, functionality, and use cases.
2023年8月6日 · Key characteristics of NOR flash include random access, allowing individual memory cells to be directly addressed, execute-in-place (XIP) capability for executing code directly from the memory itself, high endurance (number of erase/write cycles), and higher cost per gigabyte compared to NAND flash.
詳解. NOR和NAND是現在市場上兩種主要的非易失快閃記憶體技術。 Intel於1988年首先開發出NOR flash技術，徹底改變了原先由EPROM和EEPROM一統天下的局面。 緊接著，1989年， 東芝公司 發表了NAND flash結構，強調降低每比特的成本，更高的性能，並且象磁碟一樣可以通過接口輕鬆升級。 但是經過了十多年之後，仍然有相當多的 硬體工程師 分不清NOR和 NAND快閃記憶體 。 像“flash 存儲器 ”經常可以與相“NOR存儲器”互換使用。 許多業內人士也搞不清楚NAND快閃記憶體技術相對於NOR技術的優越之處，因為大多數情況下快閃記憶體只是用來存儲少量的代碼，這時NOR快閃記憶體更適合一些。
Getting to Know NOR Flash. NOR flash devices, available in densities up to 2Gb, are primarily used for reliable code storage (boot, application, OS, and execute-in-place [XIP] code in an embedded system) and frequently changing small data storage.
