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ACE25AA400G датащи(PDF) 6 Page - ACE Technology Co., LTD.

номер детали ACE25AA400G
подробное описание детали  Serial NOR Flash Memory 4M bits 3.0V Quad I/O Serial Flash Memory with 4KB Uniform Sector
PDF  49 Pages
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производитель  ACE [ACE Technology Co., LTD.]
домашняя страница  http://www.ace-ele.com
Logo ACE - ACE Technology Co., LTD.

ACE25AA400G датащи(HTML) 6 Page - ACE Technology Co., LTD.

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ACE25AA400G
Serial NOR Flash Memory 4M bits 3.0V Quad I/O Serial Flash Memory with 4KB Uniform Sector
VER 1.3
6
Data Protection
The ACE25AA400G provides the following data protection methods:
Write Enable (WREN) command: The WREN command is set the Write Enable Latch bit (WEL). The WEL
bit will return to reset by the following situation:
Power-Up
Write Disable (WRDI)
Write Status Register (WRSR)
Page Program (PP)
Sector Erase (SE) / Block Erase (BE) / Chip Erase (CE)
Software Protection Mode:
The Block Protect (BP3, BP2, BP1,BP0) bits define the section of the memory array that can be read
but not change
Hardware Protection Mode:
WP# going low to protected the BP0~BP3 bits and SRP bit
Deep Power-Down Mode:
In Deep Power-Down Mode, all commands are ignored except the Release from Deep Power-Down
Mode command
Table 1.ACE25AA400G Protected Area Sizes (CMP=0)
Status Register Contents
Protect Level
Protected Block
BP3
BP2
BP1
BP0
0
0
0
0
0(none)
None
0
0
0
1
1(1 block)
Block 7
0
0
1
0
2(2 blocks)
Block 6-7
0
0
1
1
3(4 blocks)
Block 4-7
0
1
0
0
4(8 blocks)
protected all
Table 1.1ACE25AA400G Protected Area Sizes (CMP=1)
Status Register Contents
Protect Level
Protected Block
BP3
BP2
BP1
BP0
0
0
0
0
0(none)
None
0
0
0
1
1(1 block)
Block 0
0
0
1
0
2(2 blocks)
Block 0-1
0
0
1
1
3(4 blocks)
Block 0-3
0
1
0
0
4(8 blocks)
Block 0-7



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