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參數(shù)資料
| 型號： | Am29LV004B-100ECB |
| 廠商： | Advanced Micro Devices, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT02; Number of Contacts:23; Connector Shell Size:16; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle |
| 中文描述： | 4兆位（512畝× 8位）的CMOS 3.0伏，只引導(dǎo)扇區(qū)閃存 |
| 文件頁數(shù)： | 10/36頁 |
| 文件大小： | 455K |
| 代理商： | AM29LV004B-100ECB |
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10
Am29LV004
P R E L I M I N A R Y
Table 4.
Am29LV004 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 pro-
gram and erase operations in previously protected
sectors.
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.
Sector protection/unprotection must be implemented
using programming equipment.The procedure requires
a high voltage (V
ID
) on address pin A9 and OE#. De-
tails on this method are provided in a supplement, pub-
lication number 20874. Contact an AMD representative
to request a copy.
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 RE-
SET# pin to V
ID
. During this mode, formerly protected
sectors can be programmed or erased by selecting the
sector addresses. Once V
ID
is removed from the RE-
SET# pin, all the previously protected sectors are
protected again. Figure 1 shows the algorithm, and
Figure 19 shows the timing diagrams, for this feature.
Description
CE#
OE#
WE#
A18
to
A13
A12
to
A10
A9
A8
to
A7
A6
A5
to
A2
A1
A0
DQ7
to
DQ0
Manufacturer ID
:
AMD
L
L
H
X
X
V
ID
X
L
X
L
L
01h
Device ID: Am29LV004T
(Top Boot Block)
L
L
H
X
X
V
ID
X
L
X
L
H
B5h
Device ID: Am29LV004B
(Bottom Boot Block)
L
L
H
X
X
V
ID
X
L
X
L
H
B6h
Sector Protection Verification
L
L
H
SA
X
V
ID
X
L
X
H
L
01h
(protected)
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.
Figure 1.
Temporary Sector Unprotect Operation
21522A-4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM29LV004B-100EE | Circular Connector; Body Material:Aluminum; Series:PT02; No. of Contacts:23; Connector Shell Size:16; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle; Circular Contact Gender:Socket; Insert Arrangement:16-23 |
| AM29LV004B-100EEB | PT02A SERIES (MS3112) GENERAL DUTY BOX MOUNT RECEPTACLES, STRAIGHT BODY STYLE, SOLDER TERMINATION, 16 SHELL SIZE, 16-26 INSERT ARRANGEMENT, RECEPTACLE GENDER, 26 CONTACTS |
| AM29LV004B-100EI | Circular Connector; No. of Contacts:26; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:16; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:16-26 |
| Am29LV004B-100EIB | Circular Connector; No. of Contacts:26; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:16; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:16-26 |
| AM29LV004B-100FC | Circular Connector; No. of Contacts:26; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:16; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:16-26 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM29LV004BB-120EC | 制造商:Advanced Micro Devices 功能描述:NOR Flash, 512K x 8, 40 Pin, Plastic, TSSOP |
| AM29LV004BB-120EI | 制造商:Rochester Electronics LLC 功能描述: 制造商:Advanced Micro Devices 功能描述:NOR Flash, 512K x 8, 40 Pin, Plastic, TSSOP |
| AM29LV004BB120EI\T | 制造商:Advanced Micro Devices 功能描述:4 Mb (512K x 8) Boot Sector, Flash Memory |
| AM29LV004BB-120EIT | 制造商:Rochester Electronics LLC 功能描述: 制造商:Advanced Micro Devices 功能描述: |
| am29lv004bt-120ed | 制造商:Advanced Micro Devices 功能描述: |
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