參數(shù)資料
型號： AM29LV200BB-55TEK
廠商： Advanced Micro Devices, Inc.
元件分類： FLASH
英文描述： 2 Megabit (256 K x 8-Bit/128 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
中文描述： 2兆位（256Kx8Bit/128Kx16位），3.0伏的CMOS引導(dǎo)扇區(qū)閃存
文件頁數(shù)： 14/46頁
文件大?。?/td> 716K
代理商： AM29LV200BB-55TEK
12
Am29LV200B
21521D6 October 10, 2006
DA T A S HE E T
Table 4. Am29LV200B 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 hard-
ware sector unprotection feature re-enables both
program and erase operations in previously protected
sectors. Sector protection/unprotection can be imple-
mented via two methods.
The primary method requires V
ID
on the RESET# pin
only, and can be implemented either in-system or via
programming equipment. Figure 1 shows the algo-
rithms and Figure 23 shows the timing diagram. This
method uses standard microprocessor bus cycle
timing. For sector unprotect, all unprotected sectors
must first be protected prior to the first sector unprotect
write cycle.
The alternate method intended only for programming
equipment requires V
ID
on address pin A9 and OE#.
This method is compatible with programmer routines
written for earlier 3.0 volt-only AMD flash devices. Pub-
lication number 21226 contains further details; contact
an AMD representative to request a copy.
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
selecting the sector addresses. Once V
ID
is removed
from the RESET# pin, all the previously protected
sectors are protected again. Figure 2 shows the algo-
rithm, and Figure 22 shows the timing diagrams, for this
feature.
Description
Mode
CE#
OE#
WE#
A16
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:
Am29LV200B
(Top Boot Block)
Word
L
L
H
X
X
V
ID
X
L
X
L
H
22h
3Bh
Byte
L
L
H
X
3Bh
Device ID:
Am29LV200B
(Bottom Boot Block)
Word
L
L
H
X
X
V
ID
X
L
X
L
H
22h
BFh
Byte
L
L
H
X
BFh
Sector Protection Verification
L
L
H
SA
X
V
ID
X
L
X
H
L
X
01h
(protected)
X
00h
(unprotected)
相關(guān)PDF資料
PDF描述
AM29LV200BB-55TSC 2 Megabit (256 K x 8-Bit/128 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV200BB-55TSD 2 Megabit (256 K x 8-Bit/128 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV200BB-55TSE 2 Megabit (256 K x 8-Bit/128 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV200BB-55TSF 2 Megabit (256 K x 8-Bit/128 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV200BB-55TSI 2 Megabit (256 K x 8-Bit/128 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
AM29LV200BB-90EC 制造商:Advanced Micro Devices 功能描述:NOR Flash, 128K x 16, 48 Pin, Plastic, TSSOP
AM29LV200BB-90FC 制造商:Advanced Micro Devices 功能描述:2 Mb (128K x 16) Boot Sector, Flash Memory
AM29LV256MH120RPGI 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 256MBIT 32MX8/16MX16 120NS 64BGA - Trays
AM29LV256MH123RPGI 制造商:Advanced Micro Devices 功能描述:
AM29LV256MH94REI 制造商:Spansion 功能描述:256M (32MX8/16MX16) 3V REG, MIRRORBIT, TSOP56, IND - Trays
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*