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M700000002 데이터시트(PDF) 43 Page - SPANSION

부품명 M700000002
상세설명  2 x 64 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-Only Page Mode Flash Memory Data Storage 128 Megabit (8 M x 16-Bit) CMOS
PDF  128 Pages
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제조업체  SPANSION [SPANSION]
홈페이지  http://www.spansion.com
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M700000002 데이터시트(HTML) 43 Page - SPANSION

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November 25, 2003
Am70PDL127BDH/Am70PDL129BDH
41
AD VAN C E
INFORM ATION
Figure 3.
SecSi Sector Protection Algorithm
START
SecSiTM Sector Entry
Write AAh to address 555h
Write 55h to address 2AAh
Write 88h to address 555h
SecSi Sector
Protection Entry
Write AAh to address 555h
Write 55h to address 2AAh
Write 60h to address 555h
PLSCNT = 1
Protect SecSi Sector:
write 68h to sector address
with A7–A0 = 00011010
Time out 256
µs
Read from sector address
with A7–A0 = 00011010
Data = 01h?
Yes
Yes
SecSi Sector
Protection Completed
SecSi Sector Exit
Write 555h/AAh
Write 2AAh/55h
Write SA0+555h/90h
Write XXXh/00h
Verify SecSi Sector:
write 48h to sector address
with A7–A0 = 00011010
Increment PLSCNT
PLSCNT = 25?
Device Failed
SecSi Sector Entry
SecSi Sector Protection
SecSi Sector Exit
No
No



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