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M750000009 Datasheet(PDF) 47 Page - SPANSION

No. de pieza M750000009
Descripción Electrónicos  128 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory
PDF  136 Pages
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Fabricante Electrónico  SPANSION [SPANSION]
Página de inicio  http://www.spansion.com
Logo SPANSION - SPANSION

M750000009 Datasheet(HTML) 47 Page - SPANSION

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February 5, 2004
Am75PDL191CHH/Am75PDL193CHH
45
ADV ANCE
I N FO RMAT I O N
Figure 3.
SecSi 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
(SA0 + 1Ah)
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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