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參數(shù)資料
| 型號： | W28F641B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 64MBIT (4MBIT 】 16) PAGE MODE DUAL WORK FLASH MEMORY |
| 中文描述： | 64兆比特（的4Mb】16）頁模式的雙工作閃存 |
| 文件頁數(shù)： | 8/31頁 |
| 文件大小： | 389K |
| 代理商： | W28F641B |
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W28F641B/T
Table 3. Identifier Codes and OTP Address for Read Operation
CODE
ADDRESS
[A15
A0]
DATA
[DQ15
DQ0]
NOTES
Manufacture Code
Manufacture Code
0000H
00B0H
1
Top Parameter
00B0H
1, 2
Device Code
Bottom Parameter
0001H
00B1H
1, 2
Block is Unlocked
DQ0 = 0
3
Block is Locked
DQ0 = 1
3
Block is not Locked-Down
DQ1 = 0
3
Block Lock Configuration Code
Block is Locked-Down
Block Address
+2
DQ1 = 1
3
Device Configuration Code
Partition Configuration register
0006H
PCRC
1, 4
OTP Lock
0080H
OTP-LK
1, 5
OTP
OTP
0081-0088H
OTP
1, 6
Notes:
1. The address A21
A16 are shown in below table for reading the manufacturer code, device code, device configuration code
and OTP data.
2. Bottom parameter device has its parameter blocks in the plane0 (The lowest address).
Top parameter device has its parameter blocks in the plane3 (The highest address).
3. Block Address = The beginning location of a block address within the partition to which the Read Identifier Codes/OTP
command (90H) has been written.
DQ15
DQ2 are reserved for future implementation.
4. PCRC = Partition Configuration Register Code.
5. OTP-LK = OTP Block Lock configuration.
6. OTP = OTP Block data.
Table 4. Identifier Codes and OTP Address for Read Operation on Partition Configuration
(1)
PARTITION CONFIGURATION REGISTER
(2)
PCR.10
PCR.9
PCR.8
ADDRESS (64M-bit device)
[A21
A16]
0
0
0
00H
0
0
1
00H or 10H
0
1
0
00H or 20H
1
0
0
00H or 30H
0
1
1
00H or 10H or 20H
1
1
0
00H or 20H or 30H
1
0
1
00H or 10H or 30H
1
1
1
00H or 10H or 20H or 30H
Notes:
1. The address to read the identifier codes or OTP data is dependent on the partition which is selected when writing the Read
Identifier Codes/OTP command (90H).
2. Refer to Table 12 for the partition configuration register.
- 8 -
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