M28W640EC-ZBF STMicroelectronics, M28W640EC-ZBF Datasheet - Page 15

• Manufacturer Part Number: M28W640EC-ZBF
• Description: 64 Mbit 4Mb x16/ Boot Block 3V Supply Flash Memory
• Manufacturer: STMicroelectronics

Table 6. Read Block Lock Signature
Note: 1. A Locked-Down Block can be locked "DQ0 = 1" or unlocked "DQ0 = 0"; see Block Locking section.
Table 7. Read Protection Register and Lock Register
Locked Block
Unlocked Block
Locked-Down
Block
Lock
Unique ID 0
Unique ID 1
Unique ID 2
Unique ID 3
OTP 0
OTP 1
OTP 2
OTP 3
OTP 4
OTP 5
OTP 6
OTP 7
Block Status
Word
V
V
V
V
V
V
V
V
V
V
V
V
V
E
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
G
E
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
V
V
V
V
V
V
V
V
V
V
V
V
V
W
V
V
V
IH
IH
IH
IH
IH
IH
IH
IH
IH
IH
IH
IH
IH
G
IL
IL
IL
A0-A7
8Ch
8Ah
8Bh
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
V
V
V
W
IH
IH
IH
A0
V
V
V
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
IL
IL
IL
A8-A21
V
V
V
A1
IH
IH
IH
A2-A7
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
0
0
0
ID data
ID data
ID data
ID data
DQ0
0
Don’t Care Block Address
Don’t Care Block Address
Don’t Care Block Address
A8-A11
OTP Prot.
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
ID data
ID data
ID data
ID data
DQ1
data
A12-A21
M28W640ECT, M28W640ECB
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
ID data
ID data
ID data
ID data
DQ2
0
DQ0
X
1
0
(1)
DQ3-DQ7 DQ8-DQ15
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
ID data
ID data
ID data
ID data
00h
DQ1
0
0
1
DQ2-DQ15
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
ID data
ID data
ID data
ID data
00h
00h
00h
00h
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