參數資料
型號： K9F1208U0A-P
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:32; Connector Shell Size:19; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight
中文描述： 6400 × 8位，32 × 16位NAND閃存
文件頁數： 16/45頁
文件大?。?/td> 968K
代理商： K9F1208U0A-P
FLASH MEMORY
16
K9F1208U0A
K9F1216U0A
NAND Flash Technical Notes
Initial Invalid Block(s)
Initial invalid blocks are defined as blocks that contain one or more initial invalid bits whose reliability is not guaranteed by Samsung.
The information regarding the initial invalid block(s) is so called as the initial invalid block information. Devices with initial invalid
block(s) have the same quality level as devices with all valid blocks and have the same AC and DC characteristics. An initial invalid
block(s) does not affect the performance of valid block(s) because it is isolated from the bit line and the common source line by a
select transistor. The system design must be able to mask out the initial invalid block(s) via address mapping. The 1st block, which is
placed on 00h block address, is guaranteed to be a valid block, does not require Error Correction up to 1K program/erase cycles.
Identifying Initial Invalid Block(s)
All device locations are erased(FFh) except locations where the initial invalid block(s) information is written prior to shipping. The
initial invalid block(s) status is defined by the 6th byte(X8 device) or 1st word(X16 device) in the spare area. Samsung makes sure
that either the 1st or 2nd page of every initial invalid block has non-FFh(X8 device) or non-FFFFh(X16 device) data at the column
address of 517(X8 device) or 256 and 261(X16 device). Since the initial 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 initial invalid
block(s) based on the initial invalid block information and create the initial invalid block table via the following suggested flow
chart(Figure 4). Any intentional erasure of the initial invalid block information is prohibited.
*
Check "FFh" at the column address
517(X8 device) or 256 and 261(X16 device)
Figure 4. Flow chart to create initial invalid block table.
Start
Set Block Address = 0
Check "FFh"
Increment Block Address
Last Block
End
No
Yes
Yes
Create (or update)
Initial
Invalid Block(s) Table
No
of the 1st and 2nd page in the block
相關PDF資料
PDF描述
K9F1208U0A-V Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVPS00; Number of Contacts:32; Connector Shell Size:19; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight
K9F1208U0A-Y Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVPS00; Number of Contacts:66; Connector Shell Size:19; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight
K9F1216U0A-P M1 - VGA CABLE 15 FEET
K9F1216U0A-Y M1 - VGA CABLE 25 FEET
K9F1G16U0M 128M x 8 Bit / 64M x 16 Bit NAND Flash Memory
相關代理商/技術參數
參數描述
K9F1208U0A-V 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:64M x 8 Bit , 32M x 16 Bit NAND Flash Memory
K9F1208U0A-VIB0T00 制造商:Samsung Semiconductor 功能描述:
K9F1208U0A-Y 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:64M x 8 Bit , 32M x 16 Bit NAND Flash Memory
K9F1208U0B 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:64M x 8 Bit NAND Flash Memory
K9F1208U0B-D 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:64M x 8 Bit NAND Flash Memory
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