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74ALVCH16903PF8 PDF预览

74ALVCH16903PF8

更新时间: 2024-11-22 05:16:35
品牌 Logo 应用领域
艾迪悌 - IDT 电视
页数 文件大小 规格书
13页 133K
描述
TVSOP-56, Reel

74ALVCH16903PF8 数据手册

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3.3V CMOS 12-BIT UNIVERSAL  
IDT74ALVCH16903  
BUS DRIVER WITH PARITY  
CHECKER, DUAL 3-STATE  
OUTPUTS AND BUS-HOLD  
DESCRIPTION:  
FEATURES:  
This 12-bit universal bus driver is built using advanced dual metal CMOS  
technology. This device has dual outputs and can operate as a buffer or an  
edge-triggered register. In both modes, parity is checked on APAR, which  
arrivesonecycleafterthedatatowhichitapplies.TheYERRoutput,whichis  
produced one cycle after APAR, is open drain.  
• 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  
MODE selects one of the two data paths. When MODE is low, the device  
operatesasanedge-triggeredregister.Onthepositivetransitionoftheclock  
(CLK)inputandwhentheclock-enable(CLKEN)inputislow,datasetupatthe  
Ainputsisstoredintheinternalregisters.OnthepositivetransitionofCLKand  
when CLKEN is high, only data setup at the 9A-12A inputs is stored in their  
internalregisters.WhenMODEishigh,thedeviceoperatesasabufferanddata  
attheAinputspassesdirectlytotheoutputs.The11A/YERREN servesadual  
purpose;itactsasanormaldatabitandalsoenablesYERRdatatobeclocked  
intotheYERRoutputregister.  
DRIVE FEATURES:  
High Output Drivers: ±24mA  
• Suitable for heavy loads  
Whenusedasasingledevice,parityoutputenable(PAROE)mustbetied  
high;whenparityinput/output(PARI/O)islow,evenparityisselectedandwhen  
PARI/Oishigh,oddparityisselected.WhenusedinpairsandPAROEislow,  
theparitysumisoutputonPARI/OforcascadingtothesecondALVCH16903.  
WhenusedinpairsandPAROEishigh,PARI/Oacceptsapartialparitysum  
fromthefirstALVCH16903.  
Abufferedoutput-enable(OE)inputcanbeusedtoplacethe24outputsand  
YERRineitheranormallogicstate(highorlowlogiclevels)orahigh-impedance  
state.Inthehigh-impedancestate,theoutputsneitherloadnordrivethebuslines  
significantly. The high-impedance state and increased drive provide the  
capabilitytodrivebuslineswithoutneedforinterfaceorpullupcomponents.  
The ALVCH16903 has been designed with a ±24mA output driver. This  
driveriscapableofdrivingamoderatetoheavyloadwhilemaintainingspeed  
performance.  
ABSOLUTEMAXIMUMRATINGS(1)  
Symbol  
Description  
Max  
Unit  
V
(2)  
VTERM  
Terminal Voltage with Respect to GND  
–0.5 to +4.6  
(3)  
VTERM  
Terminal Voltage with Respect to GND –0.5 to VCC+0.5  
(Outputs Only)  
V
TSTG  
IOUT  
IIK  
Storage Temperature  
DC Output Current  
–65 to +150  
–50 to +50  
±50  
° C  
mA  
mA  
Continuous Clamp Current,  
VI < 0 or VI > VCC  
IOK  
Continuous Clamp Current, VO < 0  
–50  
mA  
mA  
ICC  
ISS  
Continuous Current through each  
VCC or GND  
±100  
The ALVCH16903 has bus-hold” which retains the inputs’ last state  
whenevertheinputbusgoestoahigh-impedance.Thispreventsfloatinginputs  
andeliminatestheneedforpull-up/downresistors.  
NOTES:  
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause  
permanent damage to the device. This is a stress rating only and functional operation  
of the device at these or any other conditions above those indicated in the operational  
sections of this specification is not implied. Exposure to absolute maximum rating  
conditions for extended periods may affect reliability.  
2. VCC terminals.  
3. This value is limited to 4.6V maximum.  
APPLICATIONS:  
• 3.3V high speed systems  
• 3.3V and lower voltage computing systems  
CAPACITANCE (TA = +25°C, F = 1.0MHz)  
Symbol  
Parameter(1)  
Conditions  
VIN = 0V  
VOUT = 0V  
VIN = 0V  
Typ.  
Max. Unit  
CIN  
Input Capacitance  
Output Capacitance  
I/O Port Capacitance  
5
7
7
7
9
9
pF  
pF  
pF  
COUT  
COUT  
NOTE:  
1. As applicable to the device type.  
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.  
INDUSTRIAL TEMPERATURE RANGE  
JUNE 2006  
1
© 2006 Integrated Device Technology, Inc.  
DSC-4911/4  

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