25Q20BWIG データシートの表示（PDF） - Winbond
部品番号
コンポーネント説明
メーカー
25Q20BWIG Datasheet PDF : 72 Pages
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W25Q20BW
6. BLOCK DIAGRAM
Block Segmentation
xxFF00h
•
xxF000h
xxEF00h
•
xxE000h
xxDF00h
•
xxD000h
Sector 15 (4KB)
Sector 14 (4KB)
Sector 13 (4KB)
xxFFFFh
•
xxF0FFh
xxEFFFh
•
xxE0FFh
xxDFFFh
•
xxD0FFh
•
•
•
xx2F00h
•
xx2000h
xx1F00h
•
xx1000h
xx0F00h
•
xx0000h
Sector 2 (4KB)
Sector 1 (4KB)
Sector 0 (4KB)
xx2FFFh
•
xx20FFh
xx1FFFh
•
xx10FFh
xx0FFFh
•
xx00FFh
Security Register 3 - 0
003000h
002000h
001000h
000000h
0030FFh
0020FFh
0010FFh
0000FFh
03FF00h
•
Block 3 (64KB)
030000h
03FFFFh
•
0300FFh
•
•
•
/WP (IO2)
Write Control
Logic
/HOLD (IO3)
CLK
/CS
DI (IO0)
DO (IO1)
Status
Register
SPI
Command &
Control Logic
High Voltage
Generators
Page Address
Latch / Counter
Data
Byte Address
Latch / Counter
01FF00h
•
010000h
00FF00h
•
000000h
Block 1 (64KB)
Block 0 (64KB)
01FFFFh
•
0100FFh
00FFFFh
•
0000FFh
Beginning
Page Address
Ending
Page Address
Column Decode
And 256-Byte Page Buffer
Figure 2. W25Q20BW Serial Flash Memory Block Diagram
Publication Release Date: November 22, 2013
-9-
Preliminary - Revision C
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