M28W320 STMicroelectronics, M28W320 Datasheet - Page 8

• Manufacturer Part Number: M28W320
• Description: 32 Mbit 2Mb x16/ Boot Block Low Voltage Flash Memory
• Manufacturer: STMicroelectronics

M28W320CT, M28W320CB
Table 7. Read Block Signature (RSIG Instruction)
Note: 1. A Locked Block can be protected ”DQ0 = 1” or unprotected ”DQ0 = 0”; see Block protection section.
Table 8. Read Protection Register and Protection Register Lock (RSIG Instruction)
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Protected Block
Unprotected Block
Locked Block
Lock
Unique Id 0
Unique Id 1
Unique Id 2
Unique Id 3
OTP 0
OTP 1
OTP 2
OTP 3
Block Status
Word
V
V
V
V
V
V
V
V
V
E
IL
IL
IL
IL
IL
IL
IL
IL
IL
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
V
V
V
V
V
V
V
V
V
W
V
V
V
IH
IH
IH
IH
IH
IH
IH
IH
IH
G
IL
IL
IL
A0-A7
80h
81h
82h
83h
84h
85h
86h
87h
88h
V
V
V
W
IH
IH
IH
V
V
V
A0
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-A20
V
V
V
A1
IH
IH
IH
A2-A7
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
ID data
ID data
ID data
ID data
DQ1
data
A12-A20
OTP data
OTP data
OTP data
OTP data
prot. data
Security
ID data
ID data
ID data
ID data
DQ2
DQ0
X
1
0
(1)
DQ3-DQ7 DQ8-DQ15
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
ID data
ID data
ID data
ID data
00h
00h
00h
00h