W25X32A Datasheet, PDF (8/45 Pages) Winbond – 32M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI

W25X32A
8 BLOCK DIAGRAM
Block Segmentation
xxFF00h
•
Sector 15 (4KB)
xxF000h
xxFFFFh
•
xxF0FFh
xxEF00h
•
Sector 14 (4KB)
xxE000h
xxEFFFh
•
xxE0FFh
xxDF00h
•
Sector 13 (4KB)
xxD000h
xxDFFFh
•
xxD0FFh
•
•
•
xx2F00h
•
xx2000h
xx1F00h
•
xx1000h
xx0F00h
•
xx0000h
Sector 2 (4KB)
Sector 1 (4KB)
Sector 0 (4KB)
xx2FFFh
•
xx20FFh
xx1FFFh
•
xx10FFh
xx0FFFh
•
xx00FFh
/WP
Write Control
Logic
Status
Register
/HOLD
CLK
/CS
DIO
DO
SPI
Command &
Control Logic
High Voltage
Generators
Page Address
Latch / Counter
Data
Byte Address
Latch / Counter
3FFF00h
•
Block 63 (64KB)
3F0000h
3FFFFFh
•
3F00FFh
•
•
•
20FF00h
•
200000h
1FFF00h
•
1F0000h
10FF00h
•
100000h
0FFF00h
•
0F0000h
00FF00h
•
000000h
Block 32 (64KB)
Block 31 (64KB)
•
•
•
Block 16 (64KB)
Block 15 (64KB)
•
•
•
Block 0 (64KB)
20FFFFh
•
2000FFh
1FFFFFh
•
1F00FFh
10FFFFh
•
1000FFh
0FFFFFh
•
0F00FFh
00FFFFh
•
0000FFh
Beginning
Page Address
Ending
Page Address
Column Decode
And 256-Byte Page Buffer
Figure 2. W25X32A Serial Flash Memory Block Diagram
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