M29F800D View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'M29F800D' PDF : 39 Pages View PDF
Figure 18. Programmer Equipment Chip Unprotect Flowchart
M29F800DT, M29F800DB
START
PROTECT ALL BLOCKS
n=0
CURRENT BLOCK = 0
A6, A12, A15 = VIH(1)
E, G, A9 = VID
Wait 4µs
W = VIL
Wait 10ms
W = VIH
E, G = VIH
ADDRESS = CURRENT BLOCK ADDRESS
A0 = VIL, A1, A6 = VIH
E = VIL
Wait 4µs
G = VIL
Wait 60ns
Read DATA
INCREMENT
CURRENT BLOCK
NO ++n
= 1000
YES
A9 = VIH
E, G = VIH
FAIL
NO DATA YES
=
00h
LAST NO
BLOCK
YES
A9 = VIH
E, G = VIH
PASS
AI03470
35/39
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