IDT72V36100/72V36110 3.3V HIGH DENSITY SUPERSYNC IITM <" />
參數(shù)資料
型號(hào)： IDT72V36110L6BB
廠商： IDT, Integrated Device Technology Inc
文件頁(yè)數(shù)： 37/48頁(yè)
文件大?。?/td> 0K
描述： IC FIFO SYNC 131KX36 6NS 144BGA
標(biāo)準(zhǔn)包裝： 1
系列： 72V
功能： 同步
存儲(chǔ)容量： 4.7M（131K x 36）
數(shù)據(jù)速率： 166MHz
訪問(wèn)時(shí)間： 4ns
電源電壓： 3.15 V ~ 3.45 V
工作溫度： 0°C ~ 70°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 144-BGA
供應(yīng)商設(shè)備封裝： 144-PBGA（13x13）
包裝： 托盤(pán)
產(chǎn)品目錄頁(yè)面： 1255 (CN2011-ZH PDF)
其它名稱(chēng)： 72V36110L6BB
800-1531
42
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72V36100/72V36110 3.3V HIGH DENSITY SUPERSYNC IITM 36-BIT FIFO
65,536 x 36 and 131,072 x 36
OCTOBER 22, 2008
Figure 30. Block Diagram of 131,072 x 36 and 262,144 x 36 Depth Expansion
DEPTH EXPANSION CONFIGURATION (FWFT MODE ONLY)
The IDT72V36100 can easily be adapted to applications requiring depths
greaterthan65,536and131,072fortheIDT72V36110,withan36-bitbuswidth.
In FWFT mode, the FIFOs can be connected in series (the data outputs of one
FIFOconnectedtothedatainputsofthenext)withnoexternallogicnecessary.
The resulting configuration provides a total depth equivalent to the sum of the
depths associated with each single FIFO. Figure 30 shows a depth expansion
using two IDT72V36100/72V36110 devices.
CareshouldbetakentoselectFWFTmodeduringMasterResetforallFIFOs
in the depth expansion configuration. The first word written to an empty
configuration will pass from one FIFO to the next ("ripple down") until it finally
appears at the outputs of the last FIFO in the chain – no read operation is
necessarybuttheRCLKofeachFIFOmustbefree-running. Eachtimethedata
word appears at the outputs of one FIFO, that device's
OR line goes LOW,
enabling a write to the next FIFO in line.
For an empty expansion configuration, the amount of time it takes for
ORof
the last FIFO in the chain to go LOW (i.e. valid data to appear on the last FIFO's
outputs) after a word has been written to the first FIFO is the sum of the delays
for each individual FIFO:
(N – 1)*(4*transfer clock) + 3*TRCLK
whereNisthenumberofFIFOsintheexpansionandTRCLKistheRCLKperiod.
Note that extra cycles should be added for the possibility that the tSKEW1
specificationisnotmetbetweenWCLKandtransferclock,orRCLKandtransfer
clock, for the
OR flag.
The"rippledown"delayisonlynoticeableforthefirstwordwrittentoanempty
depth expansion configuration. There will be no delay evident for subsequent
words written to the configuration.
The first free location created by reading from a full depth expansion
configurationwill"bubbleup"fromthelastFIFOtothepreviousoneuntilitfinally
movesintothefirstFIFOofthechain. Eachtimeafreelocationiscreatedinone
FIFO of the chain, that FIFO's
IRlinegoesLOW,enablingtheprecedingFIFO
to write a word to fill it.
Forafullexpansionconfiguration,theamountoftimeittakesfor
IRofthefirst
FIFO in the chain to go LOW after a word has been read from the last FIFO is
the sum of the delays for each individual FIFO:
(N – 1)*(3*transfer clock) + 2 TWCLK
where N is the number of FIFOs in the expansion and TWCLK is the WCLK
period. NotethatextracyclesshouldbeaddedforthepossibilitythatthetSKEW1
specificationisnotmetbetweenRCLKandtransferclock,orWCLKandtransfer
clock, for the
IR flag.
The Transfer Clock line should be tied to either WCLK or RCLK, whichever
isfaster. Boththeseactionsresultindatamoving,asquicklyaspossible,tothe
end of the chain and free locations to the beginning of the chain.
Dn
INPUT READY
WRITE ENABLE
WRITE CLOCK
WEN
WCLK
IR
DATA IN
RCLK
READ CLOCK
RCLK
REN
OE
OUTPUT ENABLE
OUTPUT READY
Qn
Dn
IR
GND
WEN
WCLK
OR
REN
OE
Qn
READ ENABLE
OR
DATA OUT
IDT
72V36100
72V36110
TRANSFER CLOCK
6117 drw35
n
FWFT/SI
IDT
72V36100
72V36110
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IDT72V36110L6BB8 功能描述:IC FIFO SYNC 131KX36 6NS 144BGA RoHS:否 類(lèi)別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問(wèn)時(shí)間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱(chēng):74F433
IDT72V36110L6BBG 功能描述:IC FIFO SYNC 131KX36 6NS 144BGA RoHS:是 類(lèi)別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問(wèn)時(shí)間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱(chēng):74F433
IDT72V36110L6BBG8 功能描述:IC FIFO SYNC 131KX36 6NS 144BGA RoHS:是 類(lèi)別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問(wèn)時(shí)間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱(chēng):74F433
IDT72V36110L6PF 功能描述:IC FIFO SYNC 131KX36 6NS 128QFP RoHS:否 類(lèi)別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問(wèn)時(shí)間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱(chēng):74F433
IDT72V36110L6PF8 功能描述:IC FIFO SYNC 131KX36 6NS 128QFP RoHS:否 類(lèi)別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問(wèn)時(shí)間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱(chēng):74F433
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