W25M02GW
5. SINGLE DIE (W25N01GW) BLOCK DIAGRAM
2,112 Bytes
Column Address CA[11:0]
64
Byte
Data Buffer (2,048 Byte)
Main Array
64 X
64B
Block (64 Pages, 64 X 2KB)
AddressBits
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
64KBBlockAddr (256Blocks)
64KBBlockAddress
PageAddress(PA) [15:0]
128KBBlockAddr (1024Blocks) PageAddr (64Pages) Ext
PageAddress(256Pages)
PageAddress(256Pages)
ByteAddress(0-255Byte)
ByteAddress(0-255Byte)
SpiFlash(upto 128M-Bit)
SpiFlash(upto 32G-Bit)
X
X
X
X
X X X X
ColumnAddress(CA) [11:0]
X
X
X
X
X
X
X
X
SerialNAND(1G-Bit)
ByteAddress(0-2047Byte)
Main Memory Array (2,048-Byte)
ECC Protected
SpareArea (64-Byte)
Page
Structure
(2,112-Byte)
Sector 0
512-Byte
Sector 1
512-Byte
Sector 2
512-Byte
Sector 3
512-Byte
Spare 0
16-Byte
Spare 1
16-Byte
Spare 2
16-Byte
Spare 3
16-Byte
Column
Address
000h -- 1FFh 200h -- 3FFh 400h -- 5FFh 600h -- 7FFh 800h -- 80Fh 810h -- 81Fh 820h -- 82Fh 830h -- 83Fh
Byte
Bad Block User Data
User Data
I
ECC for
Sector 0
ECC for
Spare
Definition Marker
II
Byte
Address
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
ECC for
Byte 4 to Byte D
No ECC
Protection
ECC
Protected
Figure 2b. Single Die W25N01GW Flash Memory Architecture and Addressing
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