M29W640FB STMICROELECTRONICS [STMicroelectronics], M29W640FB Datasheet - Page 68

• Manufacturer Part Number: M29W640FB
• Description: 64 Mbit (8Mb x8 or 4Mb x16, Page, Boot Block) 3V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

9 Part Numbering
Figure 17. Programmer Equipment Chip Unprotect Flowchart
1. Block Protection Groups are shown in
68/72
NO
E, G = V IH
A9 = V IH
= 1000
FAIL
++n
YES
Appendix
ADDRESS = CURRENT GROUP ADDRESS
A6 =V IL,
A0, A2, A3 = V IL , A1 =V IH ,
PROTECT ALL GROUPS
A, Tables
CURRENT GROUP = 0
A6, A12, A15 = V IH (1)
NO
E, G, A9 = V ID
Read DATA
A9 = VID,
Wait 10ms
E, G = V IH
Wait 60ns
Wait 4µs
Wait 4µs
W = V IH
W = V IL
G = V IL
START
E = V IL
DATA
n = 0
00h
20
=
and 21.
Others = X
YES
E, G = V IH
A9 = V IH
GROUP
PASS
LAST
YES
CURRENT GROUP
M29W640FT, M29W640FB
INCREMENT
NO
AI11556