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M29W640FT Datasheet(PDF) 69 Page - STMicroelectronics

Part # M29W640FT
Description  64 Mbit (8Mb x8 or 4Mb x16, Page, Boot Block) 3V Supply Flash Memory
PDF  72 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29W640FT Datasheet(HTML) 69 Page - STMicroelectronics

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M29W640FT, M29W640FB
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Figure 18. In-System Equipment Group Protect Flowchart
2.
Block Protection Groups are shown in Appendix A, Tables 20 and 21.
3.
RP can be either at VIH or at VID when using the In-System Technique to protect the Extended Block.
AI11563
WRITE 60h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
n = 0
Wait 100
µs
WRITE 40h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
RP = VIH
++n
= 25
START
FAIL
PASS
YES
NO
DATA
=
01h
YES
NO
RP = VIH
Wait 4
µs
READ DATA
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
RP = VID
ISSUE READ/RESET
COMMAND
ISSUE READ/RESET
COMMAND
WRITE 60h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH



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