M29W320E ST Microelectronics, M29W320E Datasheet - Page 42

• Manufacturer Part Number: M29W320E
• Description: 32 Mbit (4Mb x8 or 2Mb x16 / Boot Block) 3V Supply Flash Memory
• Manufacturer: ST Microelectronics

M29W320ET, M29W320EB
Figure 21. Programmer Equipment Chip Unprotect Flowchart
Note: Block Protection Groups are shown in
42/46
NO
E, G = V IH
A9 = V IH
= 1000
FAIL
++n
YES
APPENDIX
ADDRESS = CURRENT GROUP ADDRESS
PROTECT ALL GROUPS
CURRENT GROUP = 0
A0 = V IL , A1, A6 = V IH
A6, A12, A15 = V IH (1)
NO
A.,
Table 20.
E, G, A9 = V ID
Read DATA
E, G = V IH
Wait 10ms
Wait 60ns
Wait 4µs
Wait 4µs
W = V IH
W = V IL
G = V IL
START
E = V IL
DATA
n = 0
00h
=
and
YES
Table 21.
E, G = V IH
A9 = V IH
GROUP
PASS
LAST
YES
CURRENT GROUP
INCREMENT
NO
AI05575