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參數(shù)資料
| 型號： | Am29F800BB-120EEB |
| 廠商： | Advanced Micro Devices, Inc. |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | LM3410/LM3410Q 525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation; Package: MINI SOIC EXP PAD; No of Pins: 8; Qty per Container: 3500; Container: Reel |
| 中文描述： | 8兆位（1 M中的x 8-Bit/512畝x 16位），5.0伏的CMOS只，引導(dǎo)扇區(qū)閃存 |
| 文件頁數(shù)： | 11/39頁 |
| 文件大小： | 518K |
| 代理商： | AM29F800BB-120EEB |
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Am29F800B
11
P R E L I M I N A R Y
Table 4.
Am29F800B Autoselect Codes (High Voltage Method)
L = Logic Low = V
IL
, H = Logic High = V
IH
, SA = Sector Address, X = Don’t care.
Sector Protection/Unprotection
The hardware sector protection feature disables both
program and erase operations in any sector. The
hardware sector unprotection feature re-enables both
program and erase operations in previously pro-
tected sectors.
Sector protection/unprotection must be implemented
using programming equipment. The procedure re-
quires a high voltage (V
ID
) on address pin A9 and the
control pins. Details on this method are provided in a
supplement, publication number 20374. Contact an
AMD representative to obtain a copy of the appropriate
document.
The device is shipped with all sectors unprotected.
AMD offers the option of programming and protecting
sectors at its factory prior to shipping the device
through AMD’s ExpressFlash Service. Contact an
AMD representative for details.
It is possible to determine whether a sector is protected
or unprotected. See “Autoselect Mode” for details.
Temporary Sector Unprotect
This feature allows temporary unprotection of previ-
ously protected sectors to change data in-system.
The Sector Unprotect mode is activated by setting the
RESET# pin to V
ID
. During this mode, formerly pro-
tected sectors can be programmed or erased by se-
lecting the sector addresses. Once V
ID
is removed
from the RESET# pin, all the previously protected
sectors are protected again. Figure 1 shows the algo-
rithm, and the Temporary Sector Unprotect diagram
shows the timing waveforms, for this feature.
Figure 1.
Temporary Sector Unprotect Operation
Description
Mode
CE#
OE#
WE#
A18
to
A12
A11
to
A10
A9
A8
to
A7
A6
A5
to
A2
A1
A0
DQ8
to
DQ15
DQ7
to
DQ0
Manufacturer ID
:
AMD
L
L
H
X
X
V
ID
X
L
X
L
L
X
01h
Device ID:
Am29F800B
(Top Boot Block)
Word
L
L
H
X
X
V
ID
X
L
X
L
H
22h
D6h
Byte
L
L
H
X
D6h
Device ID:
Am29F800B
(Bottom Boot Block)
Word
L
L
H
X
X
V
ID
X
L
X
L
H
22h
58h
Byte
L
L
H
X
58h
Sector Protection Verification
L
L
H
SA
X
V
ID
X
L
X
H
L
X
01h
(protected)
X
00h
(unprotected)
START
Perform Erase or
Program Operations
RESET# = V
IH
Temporary Sector
Unprotect
Completed (Note 2)
RESET# = V
ID
(Note 1)
Notes:
1. All protected sectors unprotected.
2. All previously protected sectors are protected once
again.
21504C-5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM29F800BB120SC | 制造商:Advanced Micro Devices 功能描述: |
| AM29F800BB-55EC | 制造商:Spansion 功能描述:NOR Flash Parallel 5V 8Mbit 1M/512K x 8bit/16bit 55ns 48-Pin TSOP |
| AM29F800BB-55EF | 功能描述:閃存 8M (1MX8/512KX16) Parallel NOR Fl 5V RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| AM29F800BB-55EF\\T | 制造商:Spansion 功能描述:IC 8MEG(512K16)BOTTOM SCTOR 100K (CS39S) |
| AM29F800BB-55EF\T | 功能描述:閃存 8M (1MX8/512KX16) Parallel NOR Fl 5V RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
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