第4章 串入-串、并出8位移位寄存器-74hc164.pdf
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)