- 您現(xiàn)在的位置：買賣IC網 > PDF目錄366464 > AM29LV040B-60RJF (Advanced Micro Devices, Inc.) 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory PDF資料下載
參數(shù)資料
| 型號： | AM29LV040B-60RJF |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory |
| 中文描述： | 4兆位（512畝× 8位），3.0伏的CMOS只，均勻部門32引腳閃存 |
| 文件頁數(shù)： | 12/37頁 |
| 文件大?。?/td> | 471K |
| 代理商： | AM29LV040B-60RJF |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁當前第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁
12
Am29LV040B
21354E4 October11,2006
D A T A S H E E T
Table 3.
Am29LV040B 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 method intended only
for programming equipment requires V
ID
on address
pin A9 and OE#. This method is compatible with pro-
grammer routines written for earlier 3.0 volt-only AMD
flash devices. Publication number 22168 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.
Hardware Data Protection
The command sequence requirement of unlock cycles
for programming or erasing provides data protection
against inadvertent writes (refer to Table 4 for
command definitions). In addition, the following hard-
ware data protection measures prevent accidental
erasure or programming, which might otherwise be
caused by spurious system level signals during V
CC
power-up and power-down transitions, or from system
noise.
Low V
CC
Write Inhibit
When V
CC
is less than V
LKO
, the device does not
accept any write cycles. This protects data during V
CC
power-up and power-down. The command register and
all internal program/erase circuits are disabled, and the
device resets. Subsequent writes are ignored until V
CC
is greater than V
LKO
. The system must provide the
proper signals to the control pins to prevent uninten-
tional writes when V
CC
is greater than V
LKO
.
Write Pulse “Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE#, CE# or
WE# do not initiate a write cycle.
Logical Inhibit
Write cycles are inhibited by holding any one of OE# =
V
IL
, CE# = V
IH
or WE# = V
IH
. To initiate a write cycle,
CE# and WE# must be a logical zero while OE# is a
logical one.
Power-Up Write Inhibit
If WE# = CE# = V
IL
and OE# = V
IH
during power up, the
device does not accept commands on the rising edge
of WE#. The internal state machine is automatically
reset to reading array data on power-up.
Description
CE#
OE#
WE#
A18
to
A16
A15
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: Am29LV040B
L
L
H
X
X
V
ID
X
L
X
L
H
4Fh
Sector Protection Verification
L
L
H
SA
X
V
ID
X
L
X
H
L
01h
(protected)
00h
(unprotected)
相關PDF資料 |
PDF描述 |
|---|---|
| AM29LV040B-60RJK | 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory |
| AM29LV040B-70ED | 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory |
| AM29LV040B-70EF | 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory |
| AM29LV040B-70EK | 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory |
| AM29LV040B-70JD | 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| am29lv040b-60rji | 制造商:Spansion 功能描述:NOR Flash Parallel 3.3V 4Mbit 512K x 8bit 60ns 32-Pin PLCC 制造商:Advanced Micro Devices 功能描述: |
| AM29LV040B-60RJI\\T | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8 60NS 32PLCC - Rail/Tube |
| AM29LV040B-60RJI\T | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8 60NS 32PLCC - Rail/Tube |
| AM29LV040B-70EC | 制造商:Advanced Micro Devices 功能描述:NOR Flash, 512K x 8, 32 Pin, Plastic, TSSOP |
| AM29LV040B-70ED | 制造商:Spansion 功能描述:FLASH 3V 4MB SMD 29LV040 TSOP32 |
發(fā)布緊急采購，3分鐘左右您將得到回復。