2024/7/4 16:36:00
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FEATURES
• OperateFrom1.65Vto3.6V
• InputsAcceptVoltagesto5.5V
• Maxtpdof5.9nsat3.3V
• TypicalVOLP(OutputGroundBounce)<0.8 VatVCC=3.3V,TA=25°C
• TypicalVOHV(OutputVOHUndershoot)>2VatVCC=3.3V,TA=25°C
• SupportMixed-ModeSignalOperationonAll Ports (5-VInput/OutputVoltageWith3.3-VVCC)
• IoffSupportsPartial-Power-DownMode Operation
• BusHoldonDataInputsEliminatestheNeed forExternalPullup/PulldownResistors
• Latch-UpPerformanceExceeds250mAPer JESD17
• ESDProtectionExceedsJESD22
–2000-VHuman-BodyModel(A114-A)
–200-VMachineModel(A115-A)
–1000-VCharged-DeviceModel(C101)
DESCRIPTION/ORDERINGINFORMATION
The SN54LVCH244A octal buffer/line driver is designed for 2.7-V to 3.6-V VCC operation, and the SN74LVCH244Aoctalbuffer/linedriver isdesignedfor1.65-Vto3.6-VVCCoperation.
Thesedevicesareorganizedastwo4-bit linedriverswithseparateoutput-enable(OE) inputs.WhenOEislow, these devices pass data from theA inputs to theYoutputs.WhenOE is high, the outputs are in the high-impedancestate.
Activebus-hold circuitry holds unusedor undriven inputs at a valid logic state. Useof pullupor pulldown resistorswiththebus-holdcircuitryisnotrecommended.
Inputscanbedrivenfromeither3.3-Vor5-Vdevices.Thisfeatureallowstheuseof thesedevicesastranslators inamixed3.3-V/5-Vsystemenvironment.
Thesedevicesare fullyspecified for partial-power-downapplicationsusing Ioff. The Ioff circuitrydisables the outputs,preventingdamagingcurrentbackflowthroughthedeviceswhentheyarepowereddown.
Toensurethehigh-impedancestateduringpoweruporpowerdown,OEshouldbetiedtoVCCthroughapullup resistor; theminimumvalueof theresistor isdeterminedbythecurrent-sinkingcapabilityof thedriver.
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20万现货SKU
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4小时快速交货
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每一颗料均可原厂追溯
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