M28W640FSB View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
M28W640FSB
STMicroelectronics
'M28W640FSB' PDF : 55 Pages View PDF
M28W320FST, M28W320FSB, M28W640FST, M28W640FSB
Offset
P = 35h (1)
(P+F)h = 44h
(P+10)h = 45h
(P+11)h = 46h
(P+12)
h = 47h
Data
0080h
0000h
0003h
0003h
0004h
Description
Value
Protection Field 1: Protection Description
This field describes user-available One Time Programmable (OTP) Protection
Register bytes. Some are pre-programmed with device unique serial
numbers. Others are user programmable. Bits 0–15 point to the Protection
Register Lock byte, the section’s first byte.
The following bytes are factory pre-programmed and user-programmable.
bit 0 to 7 Lock/bytes JEDEC-plane physical low address
bit 8 to 15Lock/bytes JEDEC-plane physical high address
bit 16 to 23 "n" such that 2n = factory pre-programmed bytes
bit 24 to 31 "n" such that 2n = user programmable bytes
80h
00h
8
Bytes
8
Bytes
16
Bytes
(P+13)h = 48h
Reserved
Note: 1. See Table 26., offset 15 for P pointer definition.
Table 30. Security Code Area
Offset
Data
80h
00XX
Protection Register Lock
81h
XXXX
82h
XXXX
64 bits: unique device number
83h
XXXX
84h
XXXX
85h
XXXX
86h
XXXX
87h
XXXX
88h
XXXX
128 bits: User Programmable OTP
89h
XXXX
8Ah
XXXX
8Bh
XXXX
8Ch
XXXX
Description
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