M29W800DB STMICROELECTRONICS [STMicroelectronics], M29W800DB Datasheet - Page 38
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M29W800DB
Manufacturer Part Number
M29W800DB
Description
8 Mbit (1Mb x8 or 512Kb x16, Boot Block) 3V Supply Flash Memory
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.M29W800DB.pdf
(42 pages)
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M29W800DT, M29W800DB
Figure 21. Programmer Equipment Chip Unprotect Flowchart
38/42
NO
E, G = V IH
A9 = V IH
= 1000
FAIL
++n
YES
ADDRESS = CURRENT BLOCK ADDRESS
PROTECT ALL BLOCKS
CURRENT BLOCK = 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
BLOCK
PASS
LAST
YES
CURRENT BLOCK
INCREMENT
NO
AI03470