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IDT72275L15TF8 PDF预览

IDT72275L15TF8

更新时间: 2024-01-18 08:59:30
品牌 Logo 应用领域
艾迪悌 - IDT 时钟先进先出芯片内存集成电路
页数 文件大小 规格书
25页 301K
描述
FIFO, 32KX18, 10ns, Synchronous, CMOS, PQFP64, STQFP-64

IDT72275L15TF8 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:QFP
包装说明:STQFP-64针数:64
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.32.00.71风险等级:5.43
最长访问时间:10 ns其他特性:RETRANSMIT; AUTO POWER DOWN; EASY EXPANDABLE IN DEPTH AND WIDTH
最大时钟频率 (fCLK):66.7 MHz周期时间:15 ns
JESD-30 代码:S-PQFP-G64JESD-609代码:e0
长度:10 mm内存密度:589824 bit
内存集成电路类型:OTHER FIFO内存宽度:18
湿度敏感等级:3功能数量:1
端子数量:64字数:32768 words
字数代码:32000工作模式:SYNCHRONOUS
最高工作温度:70 °C最低工作温度:
组织:32KX18可输出:YES
封装主体材料:PLASTIC/EPOXY封装代码:LFQFP
封装等效代码:QFP64,.47SQ,20封装形状:SQUARE
封装形式:FLATPACK, LOW PROFILE, FINE PITCH并行/串行:PARALLEL
峰值回流温度(摄氏度):240电源:5 V
认证状态:Not Qualified座面最大高度:1.6 mm
最大待机电流:0.02 A子类别:FIFOs
最大压摆率:0.09 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:20
宽度:10 mm

IDT72275L15TF8 数据手册

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IDT72275/72285  
CMOS SuperSync FIFO™ 32,768 x 18 and 65,536 x 18  
COMMERCIALANDINDUSTRIAL  
TEMPERATURERANGES  
PIN DESCRIPTION  
Symbol  
D0–D17  
MRS  
Name  
DataInputs  
I/O  
Description  
I
I
Datainputs fora18-bitbus.  
MasterReset  
PartialReset  
Retransmit  
MRSinitializes thereadandwritepointers tozeroandsets theoutputregistertoallzeroes.During  
MasterReset,theFIFOisconfiguredforeitherFWFTorIDTStandardmode,oneoftwoprogrammable  
flagdefaultsettings,andserialorparallelprogrammingoftheoffsetsettings.  
PRS  
RT  
I
I
PRSinitializes thereadandwritepointers tozeroandsets theoutputregistertoallzeroes.During  
PartialReset, the existingmode (IDTorFWFT), programmingmethod(serialorparallel), and  
programmableflagsettingsareallretained.  
RT assertedontherisingedgeofRCLKinitializes theREADpointertozero,sets theEFflagtoLOW  
(OR toHIGHinFWFTmode)temporarilyanddoes notdisturbthe write pointer, programming  
method,existingtimingmodeorprogrammableflagsettings.RTisusefultorereaddatafromthefirst  
physicallocationoftheFIFO.  
FWFT/SI  
WCLK  
FirstWordFall  
Through/Serial In  
I
I
DuringMasterReset,selects FirstWordFallThroughorIDTStandardmode.AfterMasterReset,  
thispinfunctionsasaserialinputforloadingoffsetregisters  
WriteClock  
WhenenabledbyWEN,therisingedgeofWCLKwrites dataintotheFIFOandoffsets intothe  
programmable registers forparallelprogramming, andwhenenabledbySEN, the risingedge of  
WCLKwritesonebitofdataintotheprogrammableregisterforserialprogramming.  
WEN  
RCLK  
WriteEnable  
ReadClock  
I
I
WENenablesWCLKforwritingdataintotheFIFOmemoryandoffsetregisters.  
WhenenabledbyREN,therisingedgeofRCLKreadsdatafromtheFIFOmemoryandoffsetsfromthe  
programmableregisters.  
REN  
OE  
SEN  
LD  
ReadEnable  
OutputEnable  
SerialEnable  
Load  
I
I
I
I
RENenables RCLKforreadingdatafromtheFIFOmemoryandoffsetregisters.  
OEcontrolstheoutputimpedanceofQn.  
SENenablesserialloadingofprogrammableflagoffsets.  
DuringMasterReset,LDselectsoneoftwopartialflagdefaultoffsets(127or1,023anddeterminesthe  
flagoffsetprogrammingmethod,serialorparallel.AfterMasterReset,thispinenableswritingtoandreading  
fromtheoffsetregisters  
DC  
Don't Care  
I
This pinmustbe tiedtoeitherVCC orGNDandmustnottoggle afterMasterReset.  
FF/IR  
Full Flag/  
Input Ready  
O
Inthe IDTStandardmode, theFF functionis selected. FF indicates whetherornotthe FIFOmemory  
isfull.IntheFWFTmode,theIRfunctionisselected. IRindicateswhetherornotthereisspaceavailable  
forwritingtotheFIFOmemory.  
EF/OR  
PAF  
EmptyFlag/  
OutputReady  
O
O
O
IntheIDTStandardmode,theEFfunctionis selected.EFindicates whetherornottheFIFO memory  
is empty. InFWFTmode, the OR functionis selected.OR indicates whetherornotthereis validdata  
availableattheoutputs.  
Programmable  
AlmostFullFlag  
PAF goes LOWifthe numberofwords inthe FIFOmemoryis more thantotalwordcapacityofthe  
FIFOminusthefulloffsetvaluem,whichisstoredintheFullOffsetregister.Therearetwopossible  
default values for m: 127 or 1,023.  
PAE  
Programmable  
AlmostEmptyFlag  
PAEgoes LOWifthe numberofwords inthe FIFOmemoryis less thanoffsetn, whichis storedinthe  
EmptyOffsetregister.Therearetwopossibledefaultvaluesforn:127or1,023.Othervaluesforncan  
beprogrammedintothedevice.  
HF  
Q0–Q17  
Half-FullFlag  
DataOutputs  
Power  
O
O
HFindicates whethertheFIFOmemoryis moreorless thanhalf-full.  
Dataoutputsforan18-bitbus.  
VCC  
+5 Volt power supply pins.  
GND  
Ground  
Groundpins.  
4

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