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參數(shù)資料
| 型號： | Am29F004B-B-70JI |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory |
| 中文描述： | 4兆位（512畝× 8位）的CMOS 5.0伏，只引導(dǎo)扇區(qū)閃存 |
| 文件頁數(shù)： | 13/37頁 |
| 文件大?。?/td> | 993K |
| 代理商： | AM29F004B-B-70JI |
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8/5/05
Am29F004B
11
A D V A N C E I N F O R M A T I O N
Figure 1. In-System Sector Protect/Sector Unprotect Algorithms
Sector Protect:
Write 60h to sector
address with
A6 = 0, A5 = 1,
A1 = 1, A0 = 0
Set up sector
address
Wait 150 ± 15
μ
s
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
(requires 1
μ
s
access time)
START
PLSCNT = 1
Set OE# = VID.
Write Sector
Unlock sequence
with command 24h
Wait 1 ms
Data = 01h
Set OE# = VID.
Write Sector
Relock sequence.
Set OE# = VIH.
Sector Protect
complete
Yes
Yes
No
PLSCNT
= 25
Yes
Device failed
Increment
PLSCNT
Sector Unprotect:
Write 60h to sector
address with
A6 = 1, A5 = 1,
A1 = 1, A0 = 0
Set up first sector
address
Wait 15 ± 1.5 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
(requires 1
μ
s
access time)
START
PLSCNT = 1
Set OE# = VID.
Write Sector
Unlock sequence
with command 24h
Wait 1 ms
Data = 00h
Last sector
verified
Sector Unprotect
complete
Yes
No
PLSCNT
= 1000
Yes
Device failed
Increment
PLSCNT
No
All sectors
protected
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
No
Yes
No
Yes
No
Sector Protect
Algorithm
Sector Unprotect
Algorithm
Write 60h to
any address with
A6 = 1, A5 = 1,
A1 = 1, A0 = 0
Write 60h to any
address with
A6 = 0, A5 = 1,
A1 = 1, A0 = 0
Protect another
sector
Reset
PLSCNT = 1
Set OE# = VID.
Write Sector
Relock sequence.
Set OE# = VIH.
Set OE# = VIL
Set OE# = VIH
Set OE# = VIH
Set OE# = VIL
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| Am29F004B-T-70JE | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory |
| Am29F004B-T-70JF | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory |
| Am29F004B-B-70JK | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory |
| Am29F004B-T-70JI | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory |
| Am29F004B-T-70JK | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM29F010 | 制造商:Panasonic Industrial Company 功能描述:IC |
| AM29F010-120DGC1 | 制造商:Spansion 功能描述:1M FLASH KNOWN GOOD DIE (COMMERCIAL TEMP) - Gel-pak, waffle pack, wafer, diced wafer on film |
| AM29F010-120DGE1 | 制造商:Spansion 功能描述:1M FLASH KNOWN GOOD DIE (EXTEND TEMP) - Gel-pak, waffle pack, wafer, diced wafer on film |
| AM29F010-120DGI1 | 制造商:Spansion 功能描述:1M FLASH KNOWN GOOD DIE (INDUSTRIAL TEMP) - Gel-pak, waffle pack, wafer, diced wafer on film |
| AM29F010-120JC | 制造商:Advanced Micro Devices 功能描述: 制造商:Advanced Micro Devices 功能描述:NOR Flash, 128K x 8, 32 Pin, Plastic, PLCC 制造商:Analog Devices 功能描述:NOR Flash, 128K x 8, 32 Pin, Plastic, PLCC |
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