m29f800dt STMicroelectronics, m29f800dt Datasheet - Page 37
m29f800dt
Manufacturer Part Number
m29f800dt
Description
8 Mbit 1mb X8 Or 512kb X16, Boot Block 5v Supply Flash Memory
Manufacturer
STMicroelectronics
Datasheet
1.M29F800DT.pdf
(39 pages)
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Figure 20. In-System Equipment Chip Unprotect Flowchart
ISSUE READ/RESET
NO
COMMAND
RP = V IH
= 1000
FAIL
++n
YES
ADDRESS = CURRENT BLOCK ADDRESS
ADDRESS = CURRENT BLOCK ADDRESS
A0 = V IL , A1 = V IH , A6 = V IH
A0 = V IL , A1 = V IH , A6 = V IH
A0 = V IL , A1 = V IH , A6 = V IH
A0 = V IL , A1 = V IH , A6 = V IH
PROTECT ALL BLOCKS
CURRENT BLOCK = 0
ANY ADDRESS WITH
ANY ADDRESS WITH
NO
READ DATA
WRITE 60h
WRITE 60h
WRITE 40h
Wait 10ms
RP = V ID
Wait 4µs
START
DATA
n = 0
00h
=
YES
ISSUE READ/RESET
COMMAND
RP = V IH
M29F800DT, M29F800DB
BLOCK
PASS
LAST
YES
CURRENT BLOCK
INCREMENT
NO
AI03472
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