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參數(shù)資料
| 型號： | IDT72V36100L7-5PF |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 37/48頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FIFO 64X36 7-5NS 128QFP |
| 標(biāo)準(zhǔn)包裝： | 36 |
| 系列： | 72V |
| 功能： | 同步 |
| 存儲(chǔ)容量： | 2.3K（64 x 36） |
| 數(shù)據(jù)速率： | 166MHz |
| 訪問時(shí)間： | 5ns |
| 電源電壓： | 3.15 V ~ 3.45 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 128-LQFP |
| 供應(yīng)商設(shè)備封裝： | 128-TQFP（14x20） |
| 包裝： | 托盤 |
| 其它名稱： | 72V36100L7-5PF |
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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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IDT72V36100L7-5PF8 | 功能描述:IC FIFO 64X36 7-5NS 128QFP RoHS:否 類別: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:- 訪問時(shí)間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型: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:74F433 |
| IDT72V36100L7-5PFGI | 制造商:Integrated Device Technology Inc 功能描述:IC FIFO 64X36 7-5NS 128QFP |
| IDT72V36100L7-5PFGI8 | 制造商:Integrated Device Technology Inc 功能描述:IC FIFO 64X36 7-5NS 128QFP |
| IDT72V36100L7-5PFI | 功能描述:IC FIFO 64X36 7-5NS 128QFP RoHS:否 類別: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:- 訪問時(shí)間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型: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:74F433 |
| IDT72V36100L7-5PFI8 | 制造商:Integrated Device Technology Inc 功能描述:IC FIFO 64X36 7-5NS 128QFP |
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