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M29W640DB Datenblatt(PDF) 46 Page - STMicroelectronics

Teilenummer M29W640DB
Bauteilbeschribung  64 Mbit 8Mb x8 or 4Mb x16, Boot Block 3V Supply Flash Memory
PDF  49 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29W640DB Datenblatt(HTML) 46 Page - STMicroelectronics

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Figure 18. In-System Equipment Group Protect Flowchart
Note: 1. Block Protection Groups are shown in APPENDIX D., Table 19. and Table 20..
2. RP can be either at VIH or at VID when using the In-System Technique to protect the Extended Block.
AI05576
WRITE 60h
ADDRESS = GROUP ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
n = 0
Wait 100µs
WRITE 40h
ADDRESS = GROUP ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
RP = VIH
++n
= 25
START
FAIL
PASS
YES
NO
DATA
=
01h
YES
NO
RP = VIH
Wait 4µs
READ DATA
ADDRESS = GROUP ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
RP = VID
ISSUE READ/RESET
COMMAND
ISSUE READ/RESET
COMMAND
WRITE 60h
ADDRESS = GROUP ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL



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