參數(shù)資料
型號(hào)： IDT723646L12PF
廠商： IDT, Integrated Device Technology Inc
文件頁(yè)數(shù)： 23/35頁(yè)
文件大?。?/td> 0K
描述： IC FIFO SYNC 2048X36 128QFP
標(biāo)準(zhǔn)包裝： 72
系列： 7200
功能： 同步
存儲(chǔ)容量： 72K（2K x 36）
數(shù)據(jù)速率： 83MHz
訪問(wèn)時(shí)間： 12ns
電源電壓： 4.5 V ~ 5.5 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： 723646L12PF
3
IDT723626/723636/723646 CMOS TRIPLE BUS SyncFIFO
WITH BUS-MATCHING 256 x 36 x 2, 512 x 36 x 2 and 1,024 x 36 x 2
COMMERCIAL TEMPERATURE RANGE
each port are independent of one another and can be asynchronous or
coincident. The enables for each port are arranged to provide a simple
bidirectional interface between microprocessors and/or buses with synchro-
nous control.
CommunicationbetweeneachportmaybypasstheFIFOsviatwomailbox
registers. The mailbox registers' width matches the selected bus width of ports
B and C. Each mailbox register has a flag (
MBF1 and MBF2) to signal when
new mail has been stored.
TwokindsofresetareavailableontheseFIFOs:MasterResetandPartial
Reset. Master Reset initializes the read and write pointers to the first location
ofthememoryarrayandselectsserialflagprogramming,parallelflagprogram-
ming,or oneofthreepossibledefaultflagoffsetsettings,8,16or64. EachFIFO
has its own, independent Master Reset pin,
MRS1 and MRS2.
PartialResetalsosetsthereadandwritepointerstothefirstlocationofthe
memory. Unlike Master Reset, any settings existing prior to Partial Reset (i.e.,
programmingmethodandpartialflagdefaultoffsets)areretained. PartialReset
is useful since it permits flushing of the FIFO memory without changing any
configuration settings. Each FIFO has its own, independent Partial Reset pin,
PRS1 and PRS2.
These devices have two modes of operation: In the IDT Standard
mode, the first word written to an empty FIFO is deposited into the memory
array. A read operation is required to access that word (along with all other
words residing in memory). In the First Word Fall Through mode (FWFT),
the first word written to an empty FIFO appears automatically on the
outputs, no read operation required (Nevertheless, accessing subsequent
words does necessitate a formal read request). The state of the BE/
FWFTpin
during Master Reset determines the mode in use.
Each FIFO has a combined Empty/Output Ready Flag (
EFA/ORA and
EFB/ORB) and a combined Full/Input Ready Flag (FFA/IRA and FFC/IRC).
The
EF and FF functions are selected in the IDT Standard mode. EF indicates
whether or not the FIFO memory is empty.
FF shows whether the memory is
full or not. The IR and OR functions are selected in the First Word Fall Through
mode. IR indicates whether or not the FIFO has available memory locations.
OR shows whether the FIFO has data available for reading or not. It marks the
presence of valid data on the outputs.
Each FIFO has a programmable Almost-Empty flag (
AEAandAEB)and
aprogrammableAlmost-Fullflag(
AFAandAFC).AEAandAEBindicatewhen
aselectednumberofwordsremainintheFIFOmemory.
AFAandAFCindicate
when the FIFO contains more than a selected number of words.
FFA/IRA,FFC/IRC,AFAandAFCaretwo-stagesynchronizedtothePort
Clock that writes data into its array.
EFA/ORA, EFB/ORB, AEA, and AEB are
two-stage synchronized to the Port Clock that reads data from its array.
Programmableoffsetsfor
AEA,AEB,AFA,AFCareloadedinparallelusingPort
A or in serial via the SD input. The Serial Programming Mode pin (
SPM)makes
thisselection.Threedefaultoffsetsettingsarealsoprovided.The
AEAandAEB
threshold can be set at 8, 16 or 64 locations from the empty boundary and the
AFAandAFCthresholdcanbesetat8,16or64locationsfromthefullboundary.
AllthesechoicesaremadeusingtheFS0andFS1inputsduringMasterReset.
Two or more FIFOs may be used in parallel to create wider data paths.
Such a width expansion requires no additional, external components. Further-
more, two IDT723626/723636/723646 FIFOs can be combined with unidirec-
tionalFIFOscapableofFirstWordFallThroughtiming(i.e.theSuperSyncFIFO
family) to form a depth expansion.
If, at any time, the FIFO is not actively performing a function, the chip
will automatically power down. During the power down state, supply current
consumption(ICC)isataminimum.Initiatinganyoperation(byactivatingcontrol
inputs) will immediately take the device out of the power down state.
The IDT723626/723636/723646s are characterized for operation from
0
°C to 70°C. Industrial temperature range (–40°C to +85°C) is available by
special order. They are fabricated using IDT’s high speed, submicron CMOS
technology.
相關(guān)PDF資料
PDF描述
IDT723651L20PQFI IC FIFO SYNC 2048X36 132QFP
IDT723653L15PF8 IC FIFO SYNC 2048X36 128-TQFP
IDT723672L12PQF IC FIFO SYNC 16384X36 132QFP
IDT723676L12PF IC FIFO SYNC 16384X36 128QFP
IDT72401L45SOG IC FIFO 64X4 PAR 45NS 16SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT723646L12PF8 功能描述:IC FIFO SYNC 2048X36 128QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 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
IDT723646L15PF 功能描述:IC FIFO SYNC 2048X36 128QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 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
IDT723646L15PF8 功能描述:IC FIFO SYNC 2048X36 128QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 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
IDT723651L15PF 功能描述:IC FIFO SYNC 2048X36 120QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 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
IDT723651L15PF8 功能描述:IC FIFO SYNC 2048X36 120QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標(biāo)準(zhǔn)包裝:90 系列:7200 功能:同步 存儲(chǔ)容量:288K（16K x 18） 數(shù)據(jù)速率:100MHz 訪問(wèn)時(shí)間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:64-LQFP 供應(yīng)商設(shè)備封裝:64-TQFP（14x14） 包裝:托盤 其它名稱:72271LA10PF
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*