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M29F800DB Datenblatt(PDF) 49 Page - STMicroelectronics

Teilenummer M29F800DB
Bauteilbeschribung  8 Mbit (1Mb x8 or 512Kb x16, Boot Block) 5V Supply Flash Memory
PDF  53 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29F800DB Datenblatt(HTML) 49 Page - STMicroelectronics

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M29F800DT
Block protection
49/53
Figure 17.
Programmer Equipment Chip Unprotect flowchart
PROTECT ALL BLOCKS
AI03470
A6, A12, A15 = VIH(1)
E, G, A9 = VID
DATA
W = VIH
E, G = VIH
ADDRESS = CURRENT BLOCK ADDRESS
A0 = VIL, A1, A6 = VIH
Wait 10ms
=
00h
INCREMENT
CURRENT BLOCK
n = 0
CURRENT BLOCK = 0
Wait 4µs
W = VIL
++n
= 1000
START
YES
YES
NO
NO
LAST
BLOCK
YES
NO
E = VIL
Wait 4µs
G = VIL
Wait 60ns
Read DATA
FAIL
PASS
A9 = VIH
E, G = VIH
A9 = VIH
E, G = VIH



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