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參數資料
| 型號： | W28J321 |
| 英文描述： | FLASH |
| 中文描述： | 閃光 |
| 文件頁數： | 1/48頁 |
| 文件大小： | 416K |
| 代理商： | W28J321 |
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W28J320B/T
32M(2M
×
16/4M
×
8)
BOOT BLOCK FLASH MEMORY
Publication Release Date: November 18, 2002
- 1 -
Revision A3
Table of Contents-
1. GENERAL DESCRIPTION.................................................................................................................. 3
2. FEATURES ......................................................................................................................................... 3
3. PRODUCT OVERVIEW...................................................................................................................... 4
4. BLOCK DIAGRAM .............................................................................................................................. 5
Block Organization........................................................................................................................... 6
5. PIN CONFIGURATION....................................................................................................................... 6
6. PIN DESCRIPTION............................................................................................................................. 7
7. PRINCIPLES OF OPERATION........................................................................................................... 8
Data Protection ................................................................................................................................ 8
8. BUS OPERATION............................................................................................................................. 11
Read............................................................................................................................................... 11
Output Disable ............................................................................................................................... 11
Standby.......................................................................................................................................... 11
Reset.............................................................................................................................................. 11
Read Identifier Codes .................................................................................................................... 12
OTP(One Time Program) Block..................................................................................................... 13
Write............................................................................................................................................... 13
9. COMMAND DEFINITIONS................................................................................................................ 14
Read Array Command ................................................................................................................... 16
Read Identifier Codes Command................................................................................................... 16
Read Status Register Command...................................................................................................16
Clear Status Register Command................................................................................................... 17
Block Erase Command .................................................................................................................. 17
Full Chip Erase Command............................................................................................................. 17
Word/Byte Write Command ........................................................................................................... 18
Block Erase Suspend Command................................................................................................... 18
Word/Byte Write Suspend Command............................................................................................ 19
Set Block and Permanent Lock-Bit Commands............................................................................. 19
Clear Block Lock-Bits Command................................................................................................... 20
OTP Program Command ............................................................................................................... 20
Block Locking by the #WP ............................................................................................................. 21
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