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參數(shù)資料
| 型號： | K9F4008W0A-TCB0 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVPS00; No. of Contacts:37; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| 中文描述： | 為512k × 8位NAND快閃記憶體 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大小： | 318K |
| 代理商： | K9F4008W0A-TCB0 |
K9F4008W0A-TCB0, K9F4008W0A-TIB0
FLASH MEMORY
9
Identifying Invalid Block(s)
All device locations are erased(FFh) except locations where the invalid block information is written prior to shipping. Since the invalid
block information is also erasable in most cases, it is impossible to recover the information once it has been erased. Therefore, the
system must be able to recognize the invalid block(s) based on the original invalid block information and create the invalid block table
via the following suggested flow chart(Figure 1). Any intentional erasure of the original invalid block information is prohibited.
Invalid Block(s)
Invalid blocks are defined as blocks that contain one or more invalid bits whose reliability is not guaranteed by Samsung. The informa-
tion regarding the invalid block(s) is called as the invalid block information. The invalid block information is written to the 1st or the 2nd
page of the invalid block(s) with 00h data. Devices with invalid block(s) have the same quality level or as devices with all valid blocks
and have the same AC and DC characteristics. An invalid block(s) does not affect the performance of valid block(s) because it is iso-
lated from the bit line and the common source line by a select transistor. The system design must be able to mask out the invalid
block(s) via address mapping. The 1st block, which is placed on 00h block address, is fully guaranteed to be a valid block, does not
require Error Correction.
NAND Flash Technical Notes
*
Check "FFh" on the 1st and 2nd page
Figure 1. Flow chart to create invalid block table.
Start
Set Block Address = 0
Check "FFh"
Increment Block Address
Last Block
End
No
Yes
Yes
Create (or update)
Invalid Block(s) Table
No
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| K9F4008W0A-TIB0 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVPS00; No. of Contacts:37; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| K9F4G08U0M | 512M x 8 Bits / 1G x 8 Bits NAND Flash Memory |
| K9K8G08U1M | 512M x 8 Bits / 1G x 8 Bits NAND Flash Memory |
| K9F5608Q0C | 512Mb/256Mb 1.8V NAND Flash Errata |
| K9F5608Q0C-D | 512Mb/256Mb 1.8V NAND Flash Errata |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| K9F4008W0A-TIB0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:512K x 8 bit NAND Flash Memory |
| K9F4G08U0A | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FLASH MEMORY |
| K9F4G08U0A-I | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FLASH MEMORY |
| K9F4G08U0A-P | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FLASH MEMORY |
| K9F4G08U0A-PCB000 | 制造商:Samsung Semiconductor 功能描述: |
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