M29DW323DB ST Microelectronics, M29DW323DB Datasheet - Page 45

• Manufacturer Part Number: M29DW323DB
• Description: 32 Mbit 4Mb x8 or 2Mb x16 / Dual Bank 8:24 / Boot Block 3V Supply Flash Memory
• Manufacturer: ST Microelectronics

Figure 21. Programmer Equipment Chip Unprotect Flowchart
Note: Block Protection Groups are shown in Appendix D, Tables 21 and 22.
NO
E, G = V IH
A9 = V IH
= 1000
FAIL
++n
YES
ADDRESS = CURRENT GROUP ADDRESS
PROTECT ALL GROUPS
CURRENT GROUP = 0
A0 = V IL , A1, A6 = V IH
A6, A12, A15 = V IH (1)
NO
E, G, A9 = V ID
Read DATA
Wait 10ms
E, G = V IH
Wait 60ns
Wait 4µs
Wait 4µs
W = V IH
W = V IL
E = V IL
G = V IL
START
DATA
n = 0
00h
=
YES
E, G = V IH
A9 = V IH
GROUP
M29DW323DT, M29DW323DB
PASS
LAST
YES
CURRENT GROUP
INCREMENT
NO
AI05575
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