W28F641B Datasheet, PDF (8/31 Pages) Winbond – 64MBIT (4MBIT × 16) PAGE MODE DUAL WORK FLASH MEMORY

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
Device Code
Top Parameter
Bottom Parameter
0001H
00B0H
1, 2
00B1H
1, 2
Block is Unlocked
DQ0 = 0
3
Block Lock Configuration Code
Block is Locked
Block is not Locked-Down
Block Address
+2
DQ0 = 1
DQ1 = 0
3
3
Block is Locked-Down
DQ1 = 1
3
Device Configuration Code
Partition Configuration register
0006H
PCRC
1, 4
OTP
OTP Lock
OTP
0080H
OTP-LK
1, 5
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
0
1
1
00H or 10H
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.
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