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IDT74FCT16260ATPA8 PDF预览

IDT74FCT16260ATPA8

更新时间: 2024-10-28 14:51:27
品牌 Logo 应用领域
艾迪悌 - IDT /
页数 文件大小 规格书
8页 64K
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IDT74FCT16260ATPA8 数据手册

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FAST CMOS  
IDT74FCT16260AT/CT/ET  
12-BIT TRI-PORT  
BUS EXCHANGER  
DESCRIPTION:  
FEATURES:  
The FCT16260T Tri-Port Bus Exchangers are high-speed 12-bit latched  
busmultiplexers/transceiversforuseinhigh-speedmicroprocessorapplica-  
tions. TheseBusExchangerssupportmemoryinterleavingwithlatchedoutputs  
ontheBportsandaddressmultiplexingwithlatchedinputsontheBports.  
TheTri-PortBusExchangerhasthree12-bitports. Datamaybetransferred  
betweentheAportandeither/bothoftheBports. Thelatchenable(LE1B,LE2B,  
LEA1BandLEA2B)inputscontroldatastorage. Whenalatch-enableinputis  
high,thelatchistransparent. Whenalatch-enableinputislow,thedataatthe  
inputislatchedandremainslatcheduntilthelatchenableinputisreturnedhigh.  
Independent output enables (OE1B and OE2B) allow reading from one port  
whilewritingtotheotherport.  
• 0.5 MICRON CMOS Technology  
• High-speed, low-power CMOS replacement for ABT functions  
• Typical tSK(o) (Output Skew) < 250ps  
• Low input and output leakage 1µA (max.)  
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using  
machine model (C = 200pF, R = 0)  
• VCC = 5V ±10%  
• High drive outputs (–32mA IOH, 64mA IOL)  
• Power off disable outputs permit “live insertion”  
• Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V,  
TA = 25°C  
TheFCT16260Tisideallysuitedfordrivinghighcapacitanceloadsandlow  
impedancebackplanes. Theoutputbuffersaredesignedwithpoweroffdisable  
capabilitytoallow"liveinsertion"ofboardswhenusedasbackplanedrivers.  
• Power off disable outputs permit “live insertion”  
• Available in SSOP and TSSOP packages  
FUNCTIONALBLOCKDIAGRAM  
29  
OE1B  
30  
LEA1B  
A-1B  
LATCH  
1B1:12  
12  
2
LE1B  
1B-A  
12  
LATCH  
12  
12  
28  
SEL  
1
OEA  
1
M
A1:12  
U
12  
X
0
12  
12  
2B-A  
27  
LATCH  
12  
LE2B  
A-2B  
LATCH  
55  
56  
2B1:12  
12  
LEA2B  
OE2B  
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.  
INDUSTRIAL TEMPERATURE RANGE  
JANUARY 2002  
1
© 2002 Integrated Device Technology, Inc.  
DSC-5431/3  

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