M29W320DB STMICROELECTRONICS [STMicroelectronics], M29W320DB Datasheet - Page 51

• Manufacturer Part Number: M29W320DB
• Description: 32 Mbit 4Mb x8 or 2Mb x16, Boot Block 3V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M29W320DT, M29W320DB
Figure 17. Programmer Equipment Chip Unprotect Flowchart
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
Block Protection
AI03470
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