參數(shù)資料
型號： M7020R-083ZA1T
廠商： 意法半導(dǎo)體
英文描述： 32K x 68-bit Entry NETWORK SEARCH ENGINE
中文描述： 32K的× 68位進(jìn)入網(wǎng)絡(luò)搜索引擎
文件頁數(shù)： 132/150頁
文件大小： 996K
代理商： M7020R-083ZA1T
M7020R
132/150
SRAM READ with a Table of Up to 31 Devices
The following explains the SRAM READ operation
accomplished through a table of up to 31 devices,
using the following parameters: TLSZ = 10. The di-
agram of such a table is shown in Figure 97, page
133.
The following assumes that SRAM access is being
accomplished through M7020R Device 0 and that
Device 0 is the selected device. Figure 98, page
134 and Figure 99, page 135 show the timing dia-
grams for Device 0 and Device 30, respectively.
–
Cycle 1A:
The host ASIC applies the READ In-
struction to CMD[1:0] using CMDV = 1. The DQ
Bus supplies the address, with DQ[20:19] set to
'10,' to select the SRAM address. The host
ASIC selects the device for which the ID[4:0]
matches the DQ[25:21] lines. During this cycle,
the host ASIC also supplies SADR[21:20] on
CMD[8:7].
–
Cycle 1B:
The host ASIC continues to apply the
READ Instruction to CMD[1:0] using CMDV = 1.
The DQ Bus supplies the address, with
DQ[20:19] set to '10,' to select the SRAM ad-
dress.
–
Cycle 2:
The host ASIC floats DQ[67:0] to a 3-
state condition.
–
Cycle 3:
The host ASIC keeps DQ[67:0] in a 3-
state condition.
–
Cycle 4:
The selected device starts to drive
DQ[67:0].
–
Cycles 5 to 6:
The selected device continues to
drive DQ[67:0].
–
Cycle 7:
The selected device continues to drive
DQ[67:0] and drives an SRAM READ cycle.
–
Cycle 8:
The selected device drives ACL from Z
to low.
–
Cycle 9:
The selected device drives ACK to
high.
–
Cycle 10:
The selected device drives ACK from
high to low.
At the end of Cycle 10, the selected device floats
ACL in a 3-state condition.
相關(guān)PDF資料
PDF描述
M7020R 32K x 68-bit Entry NETWORK SEARCH ENGINE
M72DW64000B 64Mbit (x8/ x16, Multiple Bank, Boot Block) Flash Memory and 16Mbit Pseudo SRAM, 3V Supply, Multiple Memory Product
M72DW64000B70ZT 64Mbit (x8/ x16, Multiple Bank, Boot Block) Flash Memory and 16Mbit Pseudo SRAM, 3V Supply, Multiple Memory Product
M72DW64000B90ZT 64Mbit (x8/ x16, Multiple Bank, Boot Block) Flash Memory and 16Mbit Pseudo SRAM, 3V Supply, Multiple Memory Product
M74AC574TTR OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M702-230442 功能描述:火線接頭 IEEE 1394 SMT 4P HORIZONTAL RoHS:否 制造商:Molex 產(chǎn)品:IEEE 1394 Firewire Connectors 標(biāo)準(zhǔn):IEEE 1394 位置/觸點(diǎn)數(shù)量:6 節(jié)距:2 mm 觸點(diǎn)電鍍:Unplated 觸點(diǎn)材料:Phosphor Bronze 型式:Female 電流額定值:0.5 A 安裝風(fēng)格:Through Hole 端接類型:Solder Tab 連接器類型:Firewire Receptacle
M702-230642 功能描述:火線接頭 IEEE 1394 SMT 6P HORIZONTAL RoHS:否 制造商:Molex 產(chǎn)品:IEEE 1394 Firewire Connectors 標(biāo)準(zhǔn):IEEE 1394 位置/觸點(diǎn)數(shù)量:6 節(jié)距:2 mm 觸點(diǎn)電鍍:Unplated 觸點(diǎn)材料:Phosphor Bronze 型式:Female 電流額定值:0.5 A 安裝風(fēng)格:Through Hole 端接類型:Solder Tab 連接器類型:Firewire Receptacle
M7023 制造商:Tamura Corporation of America 功能描述:
M7027 功能描述:數(shù)字萬用表 Dual Display Multime 0.3% Accuracy RoHS:否 制造商:Tektronix 產(chǎn)品:Multimeters 類型:Bench 準(zhǔn)確性:0.04 % 電壓范圍:2 V to 2 kV 電阻范圍: 電容范圍: 顯示計(jì)數(shù): 頻率:10 Hz to 45 Hz, 850 Hz to 1 MHz 測距: 真均方根值: 數(shù)據(jù)保持:
M7029 功能描述:數(shù)字萬用表 Dual Display Multime 0.2% Accuracy RoHS:否 制造商:Tektronix 產(chǎn)品:Multimeters 類型:Bench 準(zhǔn)確性:0.04 % 電壓范圍:2 V to 2 kV 電阻范圍: 電容范圍: 顯示計(jì)數(shù): 頻率:10 Hz to 45 Hz, 850 Hz to 1 MHz 測距: 真均方根值: 數(shù)據(jù)保持:
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(bào)價(jià)

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(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*