M28W640CT Datasheet, PDF (15/54 Pages) STMicroelectronics – 64 Mbit 4Mb x16, Boot Block 3V Supply Flash Memory

M28W640CT, M28W640CB
Table 5. Read Block Lock Signature
Block Status
E G W A0 A1 A2-A7 A8-A11
A12-A21 DQ0 DQ1 DQ2-DQ15
Locked Block
V_IL V_IL V_IH V_IL V_IH
0 Don't Care Block Address 1
0
00h
Unlocked Block
V_IL V_IL V_IH V_IL V_IH
0 Don't Care Block Address 0
0
00h
Locked-Down
Block
V_IL V_IL V_IH V_IL V_IH
0 Don't Care Block Address _X ⁽¹⁾ 1
00h
Note: 1. A Locked-Down Block can be locked "DQ0 = 1" or unlocked "DQ0 = 0"; see Block Locking section.
Table 6. Read Protection Register and Lock Register
Word
E G W A0-A7 A8-A21
DQ0
Lock
V_IL V_IL V_IH 80h Don't Care
0
Unique ID 0 VIL VIL VIH 81h Don't Care ID data
Unique ID 1 VIL VIL VIH 82h Don't Care ID data
Unique ID 2 VIL VIL VIH 83h Don't Care ID data
Unique ID 3 VIL VIL VIH 84h Don't Care ID data
OTP 0
V_IL V_IL V_IH 85h Don't Care OTP data
OTP 1
V_IL V_IL V_IH 86h Don't Care OTP data
OTP 2
V_IL V_IL V_IH 87h Don't Care OTP data
OTP 3
V_IL V_IL V_IH 88h Don't Care OTP data
OTP 4
V_IL V_IL V_IH 89h Don't Care OTP data
OTP 5
V_IL V_IL V_IH 8Ah Don't Care OTP data
OTP 6
V_IL V_IL V_IH 8Bh Don't Care OTP data
OTP 7
V_IL V_IL V_IH 8Ch Don't Care OTP data
DQ1
OTP Prot.
data
ID data
ID data
ID data
ID data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
OTP data
DQ2 DQ3-DQ7 DQ8-DQ15
Security
prot. data
00h
00h
ID data ID data ID data
ID data ID data ID data
ID data ID data ID data
ID data ID data ID data
OTP data OTP data OTP data
OTP data OTP data OTP data
OTP data OTP data OTP data
OTP data OTP data OTP data
OTP data OTP data OTP data
OTP data OTP data OTP data
OTP data OTP data OTP data
OTP data OTP data OTP data
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