m28w640fcb STMicroelectronics, m28w640fcb Datasheet - Page 63

• Manufacturer Part Number: m28w640fcb
• Description: 64 Mbit 4mb X16, Boot Block 3v Supply Flash Memory
• Manufacturer: STMicroelectronics

M28W640FCT, M28W640FCB
Table 30.
1. See
Table 31.
(P+F)h = 44h
P = 35h
(P+10)h =
(P+11)h =
(P+12)h =
(P+13)h =
Offset
Offset
8Ch
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
8Ah
8Bh
45h
46h
47h
48h
Table
(1)
27, offset 15 for P pointer definition
Primary Algorithm-specific Extended Query table (continued)
Security code area
XXXX
XXXX
XXXX
XXXX
XXXX
XXXX
XXXX
XXXX
XXXX
XXXX
XXXX
XXXX
00XX
Data
0080h
0000h
0003h
0004h
Data
Protection Register Lock
64 bits: unique device number
128 bits: User Programmable OTP
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 2
bit 24 to 31 "n" such that 2
Reserved
Description
n
n
= factory pre-programmed bytes
= user programmable bytes
Description
Common Flash Interface (CFI)
16 byte
8 byte
Value
80h
00h
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