# Norflash 與 Nandflash 的差異 https://www.embedded.com/flash-101-nand-flash-vs-nor-flash/  | 項目 | NAND | NOR | |:--------:|:-------------------:|:-------------------------:| | 原理 | 類似NAND GATE,並聯 | 類似NOR GATE,8個串聯一組 | | 隨機訪問 | X | O | | 讀取速度 | 慢(1X) | 快(3Xup) | | 寫入速度 | 快(5Xup) | 慢(1X) | | 擦除速度 | 快(150Xup) | 慢(1X) | | | | | | IC體積 | 小(1X) | 大(2X) | | 單位成本 | 低 | 高 | | 壽命 | 長(10X) | 短(1X) |
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