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第4章 串入-串、并出8位移位寄存器-74hc164.pdf

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CD54HC164,CD74HC164,

CD54HCT164,CD74HCT164

DatasheetacquiredfromHarrisSemiconductor

SCHS155C

High-SpeedCMOSLogic

October1997-RevisedAugust20038-BitSerial-In/Parallel-OutShiftRegister

FeaturesDescription

•BufferedInputsThe’HC164and’HCT164are8-bitserial-inparallel-outshift

registerswithasynchronousreset.Dataisshiftedonthe

[/Title•AsynchronousMasterResetpositiveedgeofClock(CP).ALOWontheMasterReset

(CD74•Typicalf=60MHzatV=5V,C=15pF,(MR)pinresetstheshiftregisterandalloutputsgotothe

MAXCCL

HC164TA=25oCLOWstateregardlessoftheinputconditions.TwoSerial

Datainputs(DS1andDS2)areprovided,eitheronecanbe

,•Fanout(OverTemperatureRange)usedasaDataEnablecontrol.

CD74-StandardOutputs...............10LSTTLLoads

HCT16-BusDriverOutputs.............15LSTTLLoadsOrderingInformation

•WideOperatingTemperatureRange...-55oo

4)

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