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M750000004 Scheda tecnica(PDF) 47 Page - SPANSION

Il numero della parte M750000004
Spiegazioni elettronici  128 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory
PDF  129 Pages
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Produttore elettronici  SPANSION [SPANSION]
Homepage  http://www.spansion.com
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M750000004 Scheda tecnica(HTML) 47 Page - SPANSION

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January 14, 2004
Am75PDL191CHHa/Am75PDL193CHHa
45
ADV ANCE
I N FO RMAT I O N
Figure 3.
PDL127H 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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