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參數(shù)資料
| 型號(hào)： | NAND04GA3C2AN6F |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 4Gbit, 2112 Byte Page, 3V, Multi-level NAND Flash Memory |
| 中文描述： | 4Gbit的，2112字節(jié)的頁(yè)，3V供電，多級(jí)NAND閃存 |
| 文件頁(yè)數(shù)： | 31/51頁(yè) |
| 文件大?。?/td> | 374K |
| 代理商： | NAND04GA3C2AN6F |
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NAND04GA3C2A, NAND04GW3C2A
9 Software algorithms
31/51
9.3
Garbage collection
When a data page needs to be modified, it is faster to write to the first available page, and
the previous page is marked as invalid. After several updates it is necessary to remove
invalid pages to free some memory space.
To free this memory space and allow further program operations it is recommended to
implement a Garbage Collection algorithm. In a Garbage Collection software the valid
pages are copied into a free area and the block containing the invalid pages is erased (see
Figure 12
).
9.4
Wear-leveling algorithm
For write-intensive applications, it is recommended to implement a Wear-leveling Algorithm
to monitor and spread the number of write cycles per block.
In memories that do not use a Wear-Leveling Algorithm not all blocks get used at the same
rate. Blocks with long-lived data do not endure as many write cycles as the blocks with
frequently-changed data.
The Wear-leveling Algorithm ensures that equal use is made of all the available write cycles
for each block. There are two wear-leveling levels:
1.
First Level Wear-leveling, new data is programmed to the free blocks that have had the
fewest write cycles
2.
Second Level Wear-leveling, long-lived data is copied to another block so that the
original block can be used for more frequently-changed data.
The Second Level Wear-leveling is triggered when the difference between the maximum
and the minimum number of write cycles per block reaches a specific threshold.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NAND04GW3C2AN6E | 4Gbit, 2112 Byte Page, 3V, Multi-level NAND Flash Memory |
| NAND128R3A2AZA1 | 128 Mbit, 256 Mbit, 512 Mbit, 1 Gbit (x8/x16) 528 Byte/264 Word Page, 1.8V/3V, NAND Flash Memories |
| NAND128W3A0AV6 | 128 Mbit, 256 Mbit, 512 Mbit, 1 Gbit (x8/x16) 528 Byte/264 Word Page, 1.8V/3V, NAND Flash Memories |
| NAND256R3A0AZB6 | 128 Mbit, 256 Mbit, 512 Mbit, 1 Gbit (x8/x16) 528 Byte/264 Word Page, 1.8V/3V, NAND Flash Memories |
| NAND128W4A0CZA6E | 128 Mbit, 256 Mbit, 512 Mbit, 1 Gbit (x8/x16) 528 Byte/264 Word Page, 1.8V/3V, NAND Flash Memories |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NAND04GR3B2DDI6 | 制造商:Micron Technology Inc 功能描述:NAND - Gel-pak, waffle pack, wafer, diced wafer on film |
| NAND04GR3B2DN6E | 功能描述:IC FLASH 4GBIT 48TSOP RoHS:是 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:576 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:閃存 - NAND 存儲(chǔ)容量:512M（64M x 8） 速度:- 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-TFSOP（0.724"，18.40mm 寬） 供應(yīng)商設(shè)備封裝:48-TSOP 包裝:托盤 其它名稱:497-5040 |
| NAND04GR3B2DZL6F | 制造商:Micron Technology Inc 功能描述:NAND - Tape and Reel |
| NAND04GR3B2EN6E | 制造商:Micron Technology Inc 功能描述:NAND - Trays |
| NAND04GR3B2EN6F | 制造商:Micron Technology Inc 功能描述:NAND - Tape and Reel |
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