kfm2g16q2a-deb8 Samsung Semiconductor, Inc., kfm2g16q2a-deb8 Datasheet - Page 48

• Manufacturer Part Number: kfm2g16q2a-deb8
• Description: 2gb Muxonenand A-die
• Manufacturer: Samsung Semiconductor, Inc.

2.7.2 lnternal Memory Spare Area Assignment
The figure below shows the assignment of the spare area in the Internal Memory NAND Array.
Spare Area Assignment in the Internal Memory NAND Array Information
NOTE 5 : In case of ECC Bypass Mode, user can program in ECC Area.
NOTE 6 : For all blocks, 8th word is available to the user.
MuxOneNAND2G(KFM2G16Q2A-DEBx)
MuxOneNAND4G(KFN4G16Q2A-DEBx)
Word
1
2
3
4
5
6
7
8
However,in case of OTP Block, 8th word of sector 0, page 0 is reserved as OTP Locking Bit area.
Therefore, in case of OTP Block, user usage on this area is prohibited.
LSB
Note1 Note1 Note2 Note2 Note2 Note3 Note3 Note3
LSB
1
st
W
MSB
Byte
MSB
MSB
MSB
MSB
MSB
MSB
MSB
MSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
MSB
LSB
Main area
256W
2
nd
W
MSB
Main area
Note
256W
1
2
3
3
4
LSB
3
rd
W
MSB
Main area
Invalid Block information in 1st and 2nd page of an invalid block
Managed by internal ECC logic for Logical Sector Number data
Reserved for future use
Dedicated to internal ECC logic. Read Only. (Note 5)
ECCm 1st for main area data
Dedicated to internal ECC logic. Read Only. (Note 5)
ECCm 2nd for main area data
Dedicated to internal ECC logic. Read Only. (Note 5)
ECCm 3rd for main area data
Dedicated to internal ECC logic. Read Only. (Note 5)
ECCs 1st for 2nd word of spare area data
Dedicated to internal ECC logic. Read Only. (Note 5)
ECCs 2nd for 3rd word of spare area data
Reserved for future use
256W
LSB
4
th
Main area
W
256W
MSB
- 48 -
ECCm
LSB
1st
Spare
area
8W
5
th
W
ECCm
MSB
2nd
Available to the user (Note 6)
Spare
area
8W
ECCm
LSB
3rd
Spare
Description
area
8W
6
th
W
ECCs
MSB
1st
Spare
area
8W
ECCs
LSB
2nd
7
th
W
Note3
FLASH MEMORY
MSB
Note4 Note4
LSB
8
th
W
MSB