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IDT65ALVCH16823PA PDF预览

IDT65ALVCH16823PA

更新时间: 2024-11-11 04:44:27
品牌 Logo 应用领域
艾迪悌 - IDT 输出元件
页数 文件大小 规格书
7页 72K
描述
3.3V CMOS 18-BIT BUS-INTERFACE FLIPFLOP WITH 3-STATE OUTPUTS AND BUS-HOLD

IDT65ALVCH16823PA 数据手册

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IDT74ALVCH16823  
3.3V CMOS 18-BIT  
BUS-INTERFACE FLIP-  
FLOP WITH 3-STATE OUT-  
PUTS AND BUS-HOLD  
DESCRIPTION:  
FEATURES:  
This18-bitbus-interfaceflip-flopisbuiltusingadvanceddualmetalCMOS  
technology.TheALVCH16823features3-stateoutputsdesignedspecifically  
fordrivinghighlycapacitiveorrelativelylow-impedanceloads.Thedeviceis  
particularlysuitableforimplementingwiderbufferregisters,I/Oports,bidirec-  
tional bus drivers with parity, and working registers.  
• 0.5 MICRON CMOS Technology  
• Typical tSK(o) (Output Skew) < 250ps  
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using  
machine model (C = 200pF, R = 0)  
• VCC = 3.3V ± 0.3V, Normal Range  
• VCC = 2.7V to 3.6V, Extended Range  
• VCC = 2.5V ± 0.2V  
• CMOS power levels (0.4µ W typ. static)  
• Rail-to-Rail output swing for increased noise margin  
• Available in TSSOP package  
TheALVCH16823canbeusedastwo9-bitflip-flopsorone18-bitflip-flop.  
Withtheclock-enable(CLKEN)inputlow,theD-typeflip-flopsenterdataonthe  
low-to-hightransitionsoftheclock.TakingCLKENhighdisablestheclockbuffer,  
thuslatchingtheoutputs.Takingtheclear(CLR)inputlowcausestheQoutputs  
togolowindependentlyoftheclock.  
Abufferedoutput-enable(OE)inputcanbeusedtoplacethenineoutputs  
ineitheranormallogicstate(highorlowlogiclevels)orahigh-impedancestate.  
In the high-impedance state, the outputs neither load nor drive the bus lines  
significantly. The high-impedance state and increased drive provide the  
capabilitytodrivebuslineswithoutneedforinterfaceorpullupcomponents.The  
OEinputdoesnotaffecttheinternaloperationoftheflip-flops.Olddatacanbe  
retainedornewdatacanbeenteredwhiletheoutputsareinthehigh-impedance  
state.  
DRIVE FEATURES:  
• High Output Drivers: ±24mA  
• Suitable for heavy loads  
APPLICATIONS:  
• 3.3V high speed systems  
The ALVCH16823 has been designed with a ±24mA output driver. This  
driveriscapableofdrivingamoderatetoheavyloadwhilemaintainingspeed  
performance.  
• 3.3V and lower voltage computing systems  
The ALVCH16823 has “bus-hold” which retains the inputs’ last state  
whenevertheinputgoestoahighimpedance. Thispreventsfloatinginputsand  
eliminatestheneedforpull-up/downresistor.  
FUNCTIONALBLOCKDIAGRAM  
2
27  
1OE  
2OE  
1
28  
1CLR  
2CLR  
55  
30  
CE  
R
CE  
R
1CLKEN  
2CLKEN  
56  
54  
29  
42  
15  
3
1CLK  
1D1  
1Q1  
2CLK  
2D1  
2Q1  
C1  
C1  
D1  
D1  
TO 8 OTHER CHANNELS  
TO 8 OTHER CHANNELS  
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.  
INDUSTRIAL TEMPERATURE RANGE  
JANUARY 2004  
1
© 2004 Integrated Device Technology, Inc.  
DSC-4237/2  

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