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參數(shù)資料
| 型號(hào)： | S29AL004D90BFI023 |
| 廠商： | SPANSION LLC |
| 元件分類： | DRAM |
| 英文描述： | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| 中文描述： | 256K X 16 FLASH 3V PROM, 90 ns, PBGA48 |
| 封裝： | 8.15 X 6.15 MM, LEAD FREE, FBGA-48 |
| 文件頁(yè)數(shù)： | 19/55頁(yè) |
| 文件大小： | 1481K |
| 代理商： | S29AL004D90BFI023 |
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February 18, 2005 S29AL004D_00_A1
S29AL004D
17
A d v a n c e I n f o r m a t i o n
Figure 2. In-System Sector Protect/Sector Unprotect Algorithms
Sector Protect:
Write 60h to sector
address with
A6 = 0, A1 = 1,
A0 = 0
Set up sector
address
Wait 150 μs
Verify Sector
Protect: Write 40h
to sector address
with A6 = 0,
A1 = 1, A0 = 0
Read from
sector address
with A6 = 0,
A1 = 1, A0 = 0
START
PLSCNT = 1
RESET# = V
ID
Wait 1 μs
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 = 1, A1 = 1,
A0 = 0
Set up first sector
address
Wait 15 ms
Verify Sector
Unprotect: Write
40h to sector
address with
A6 = 1, A1 = 1,
A0 = 0
Read from
sector address
with A6 = 1,
A1 = 1, A0 = 0
START
PLSCNT = 1
RESET# = V
ID
Wait 1 μs
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S29AL004D90MAI010 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D90MAI012 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D90MAI013 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D90MAI020 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D90MAI022 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S29AL004D90MAI010 | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8/256KX16 90NS 44SOP - Rail/Tube |
| S29AL004D90MAI012 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D90MAI013 | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8/256KX16 90NS 44SOP - Tape and Reel |
| S29AL004D90MAI020 | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8/256KX16 90NS 44SOP - Rail/Tube |
| S29AL004D90MAI022 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
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