參數(shù)資料
型號: AM29PDL310G73WSI
廠商: Spansion Inc.
英文描述: 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIO Control
中文描述: 64兆位(4個M x 16位),3.0伏的CMOS只,同步讀/寫閃存與增強VersatileIO控制記憶
文件頁數(shù): 22/61頁
文件大?。?/td> 1653K
代理商: AM29PDL310G73WSI
February 26, 2003
Am29PDL640G
21
P R E L I M I N A R Y
Note:
These algorithms are valid only in Persistent Sector Protection Mode. They are not valid in Password Protection Mode.
Figure 1.
Sector Unprotection Algorithms
In-System Sector Protection/
Sector Protect:
Write 60h to sector
address with
A6-A0 =
0111010
Set up sector
address
Wait 100 μs
Verify Sector
Protect: Write 40h
to sector address
with A6-A0 =
0000010
Read from
sector address
with A6-A0 =
0000010
START
PLSCNT = 1
RESET# = V
ID
Wait 4
μ
s
First Write
Cycle = 60h
Data = 01h
Remove V
from RESET#
Write reset
command
Sector Protect
complete
Yes
Yes
No
PLSCNT
= 25
Yes
Device failed
Increment
PLSCNT
Temporary Sector
Unprotect Mode
No
Sector Unprotect:
Write 60h to sector
address with
A6-A0 =
1111010
Set up first sector
address
Wait 1.2 ms
Verify Sector
Unprotect: Write
40h to sector
address with
A6-A0 =
0000010
Read from
sector address
with A6-A0 =
0000010
START
PLSCNT = 1
RESET# = V
ID
Wait 4
μ
s
Data = 00h
Last sector
verified
Remove V
from RESET#
Write reset
command
Sector Unprotect
complete
Yes
No
PLSCNT
= 1000
Yes
Device failed
Increment
PLSCNT
Temporary Sector
Unprotect Mode
No
All sectors
protected
Yes
Protect all sectors:
The indicated portion
of the sector protect
algorithm must be
performed for all
unprotected sectors
prior to issuing the
first sector
unprotect address
Set up
next sector
address
No
Yes
No
Yes
No
No
Yes
No
Sector Protect
Algorithm
Sector Unprotect
Algorithm
First Write
Cycle = 60h
Protect another
sector
Reset
PLSCNT = 1
Remove V
from RESET#
Write reset
command
Sector Protect
complete
Remove V
from RESET#
Write reset
command
Sector Unprotect
complete
相關(guān)PDF資料
PDF描述
AM29PDL310G73WSIN 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIO Control
AM29PDL310G83WHI 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIO Control
AM29PDL310G83WHIN 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIO Control
AM29PDL310G83WSI 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIO Control
AM29PDL310G83WSIN 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIO Control
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