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M29W400DT Datasheet(PDF) 45 Page - STMicroelectronics

No. de pieza M29W400DT
Descripción Electrónicos  4 Mbit (512 Kb x 8 or 256 Kb x 16, boot block) 3 V supply Flash memory
PDF  48 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29W400DT Datasheet(HTML) 45 Page - STMicroelectronics

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M29W400DT, M29W400DB
Block protection
45/48
Figure 21.
In-system equipment block protect flowchart
AI03471
WRITE 60h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
n = 0
Wait 100 µs
WRITE 40h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
RP = VIH
++n
= 25
START
FAIL
PASS
YES
NO
DATA
=
01h
YES
NO
RP = VIH
Wait 4 µs
READ DATA
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
RP = VID
ISSUE READ/RESET
COMMAND
ISSUE READ/RESET
COMMAND
WRITE 60h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL



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