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EN39SL800 Datasheet(PDF) 25 Page - Eon Silicon Solution Inc.

Part No. EN39SL800
Description  8 Megabit (512K x 16-bit) Flash Memory With 4Kbytes Uniform Sector, CMOS 1.8 Volt-only
Download  45 Pages
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Maker  EON [Eon Silicon Solution Inc.]
Homepage  http://www.essi.com.tw
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EN39SL800 Datasheet(HTML) 25 Page - Eon Silicon Solution Inc.

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This Data Sheet may be revised by subsequent versions
©2004 Eon Silicon Solution, Inc.,
www.eonssi.com
or modifications due to changes in technical specifications.
25
EN39SL800
Rev. H, Issue Date: 2011/02/14
Flowchart 7b. In-System Chip Unprotect Flowchart
Yes
Yes
Yes
No
No
No
Set A6=1, A1=1, A0=0,
CE# = VIL
Set OE#= VIL,
WE#= VIH , A9=VID
Activate WE# Pulse
Set OE#=VID, A9=VID
Setup Chip
Unprotect Mode ,
A6=1, A1=1, A0=0
PLSCNT=1, Set Block
Address to SA0
Protect All Blocks
START
Data = 00h ?
PLSCNT=1000?
Last Block
Address?
Remove VID from A9
Increment Block
Group Address
Device
Failed
Read Data from
Device
Increment PLSCNT
Time Out 10 ms
Chip Unprotection
Completed
Chip Unprotect Algorithm


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