m29dw641f STMicroelectronics, m29dw641f Datasheet - Page 76
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m29dw641f
Manufacturer Part Number
m29dw641f
Description
64 Mbit 4mb X16, Multiple Bank, Boot Block 3v Supply Flash Memory
Manufacturer
STMicroelectronics
Datasheet
1.M29DW641F.pdf
(80 pages)
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High voltage Block Protection
Figure 23. Programmer equipment Chip Unprotect flowchart
1. Block Protection Groups are shown in
76/80
NO
E, G = V IH
A9 = V IH
= 1000
FAIL
++n
YES
Appendix
NO
D,
ADDRESS = CURRENT
A6, A12, A15 = V IH (1)
CURRENT GROUP = 0
GROUP ADDRESS
Table
A0, A2, A3 = V IL
E, G, A9 = V ID
PROTECT ALL
A1, A6 = V IH
DATA = 00h
Read DATA
Wait 60ns
Wait 4µs
Wait 10ms
GROUPS
E, G = V IH
START
Wait 4µs
W = V IH
W = V IL
E = V IL
n = 0
28.
G = V IL
YES
E, G = V IH
A9 = V IH
GROUP
PASS
LAST
CURRENT GROUP
YES
INCREMENT
NO
M29DW641F
AI07757