- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366561 > AmMC008AWP (Advanced Micro Devices, Inc.) Circular Connector; No. of Contacts:6; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:8; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:8-35 RoHS Compliant: No PDF資料下載
參數(shù)資料
| 型號： | AmMC008AWP |
| 廠商： | Advanced Micro Devices, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:6; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:8; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:8-35 RoHS Compliant: No |
| 中文描述： | 2，4，或8兆的5.0伏，只有Flash微型卡 |
| 文件頁數(shù)： | 11/39頁 |
| 文件大?。?/td> | 182K |
| 代理商： | AMMC008AWP |
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頁當(dāng)前第11頁第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頁第38頁第39頁
AmMC0XXA
11
P R E L IM IN A R Y
Data Protection
An optional mechanical write protect switch provides
user-initiated write protection. When this switch is acti-
vated, WE
#
is internally forced high. The Flash memory
command register is disabled from accepting any write
commands. This prevents the card from responding to
any commands (for example, an Autoselect command).
See Figure 3.
Figure 3.
(Card Right Side View)
Write Protect Switch
In addition to card-level data protection, AMD Flash
Miniature Cards offer several device-level data protec-
tion features.
Device-Level Data Protection
AMD Flash memory devices offer protection against
accidental erasure or programming caused by spurious
system level signals that may exist during power transi-
tions. During power up, each device automatically
resets the internal state machine to the read mode. The
control register architecture allows alteration of the
memory contents only occurs after successful comple-
tion of specific multi-bus cycle command sequences.
AMD Flash memory devices also incorporate the fol-
lowing features to prevent inadvertent write cycles
resulting from V
CC
power-up and power-down
transitions or system noise.
Low V
CC
Write Inhibit
To avoid initiation of a write cycle during V
CC
power-
up and power-down, the AMD memory devices in
the Miniature Card lock out write cycles for V
CC
<
V
LKO
(see “DC Characteristics” on page 25 for volt-
ages). When V
CC
< V
LKO
, the command register is
disabled, all internal program/erase circuits are dis-
abled, and the device resets to the read mode.
These memory devices ignore all writes until V
CC
>
V
LKO
. The user must ensure that the control pins
are in the correct logical state when V
CC
> V
LKO
to
prevent unintentional writes.
Write Pulse “Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE#, CE#,
or WE# will neither initiate a write cycle nor change the
command registers.
Logical Inhibit
Writing is 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
Power-up of the device with CE# = WE# = V
IL
and OE#
= V
IH
will not accept commands on the rising edge of
WE#. The internal state machine is automatically reset
to the read mode on power-up.
Read Mode
Two Card Enable (CE#) pins are available on the
memory card. Both CE# pins must be active low for
word-wide read accesses. Only one CE# is required for
byte-wide accesses. The CE# pins select and deter-
mine when to apply power to the high-byte and low-
byte memory devices. The Output Enable (OE#) con-
trols gating accessed data from the memory device
outputs.
The Miniature card automatically powers up in the
read/reset state. In this case, a command sequence is
not required to read data. Standard microprocessor
read cycles will retrieve array data. This default value
ensures that no spurious alteration of the memory
content occurs during the power transition. Refer to the
AC Read Characteristics and Waveforms for the spe-
cific timing parameters.
Output Disable
Data outputs from the card are disabled when OE# is
at a logic-high level. Under this condition, outputs are in
the high-impedance state.
Standby Operations
Byte-wide read accesses only require half of the
read/write output buffer (x16) to be active. In addition,
only one memory device is active within either the high
order or low order bank. Activation of the appropriate
half of the output buffer is controlled by the combination
of both CE# pins. The CE# pins also control power to
the high and low-order banks of memory. Outputs of
the memory bank not selected are placed in the high
impedance state. The individual memory device is acti-
vated by the address decoders. The other memory
devices operate in standby. An active memory device
continues to draw power until completion of a write or
erase operation if the card is de-selected in the process
of one of these operations.
Write Enabled
Write Disabled
20975D-4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AmMCL002AWP | Circular Connector; No. of Contacts:6; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:8; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:8-6 RoHS Compliant: No |
| AmMCL004AWP | Circular Connector; No. of Contacts:3; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:8; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:8-98 RoHS Compliant: No |
| AMMCL00XA | JT 3C 3#20 SKT RECP |
| AMP-25G | Plug-In Amplifier |
| AmPAL20L10-20 | PAL20X10A Series - XOR Registered 24-pin TTL Programmable Array Logic |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMMC0XXA | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2, 4, or 8 Megabyte 5.0 Volt-only Flash Miniature Card |
| AMMC-2008-W10 | 功能描述:RF 開關(guān) IC Switch GaAs SPDT RoHS:否 制造商:M/A-COM Technology Solutions 開關(guān)數(shù)量:Single 開關(guān)配置:SPDT 介入損耗:0.6 dB 截止隔離（典型值）:43 dB 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN-16 封裝:Reel |
| AMMC-2008-W50 | 功能描述:RF 開關(guān) IC Switch GaAs SPDT RoHS:否 制造商:M/A-COM Technology Solutions 開關(guān)數(shù)量:Single 開關(guān)配置:SPDT 介入損耗:0.6 dB 截止隔離（典型值）:43 dB 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN-16 封裝:Reel |
| AMMC-3040 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:18-36 GHz Double-Balanced Mixer with Integrated LO Amplifier/Multiplier |
| AMMC-3040-W10 | 功能描述:上下轉(zhuǎn)換器 IC Mixer LO Amp RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。