M29W400DT ST Microelectronics, M29W400DT Datasheet - Page 31

• Manufacturer Part Number: M29W400DT
• Description: 4 Mbit (512Kb x8 or 256Kb x16 / Boot Block) 3V Supply Flash Memory
• Manufacturer: ST Microelectronics

Figure 19. Programmer Equipment Block Protect Flowchart
ADDRESS = BLOCK ADDRESS
A0, A6 = V IL ,
G, A9 = V ID ,
Read DATA
E, G = V IH ,
Wait 100µs
E, G = V IH
Wait 60ns
A1 = V IH
A9 = V IH
Wait 4µs
Wait 4µs
W = V IH
W = V IH
W = V IL
G = V IL
START
E = V IL
E = V IL
DATA
PASS
n = 0
01h
=
YES
NO
E, G = V IH
A9 = V IH
FAIL
= 25
++n
YES
NO
M29W400DT, M29W400DB
AI03469
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