第4章 串、并入-串出8位移位寄存器-74hc165.pdf
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SN54HC165,SN74HC165
SCLS116H–DECEMBER1982–REVISEDDECEMBER2015
SNx4HC1658-BitParallel-LoadShiftRegisters
1Features3Description
TheSNx4HC165devicesare8-bitparallel-loadshift
1•WideOperatingVoltageRangeof2Vto6V
registersthat,whenclocked,shiftthedatatowarda
•OutputsCanDriveUpto10LSTTLLoads
serial(QH)output.Parallel-inaccesstoeachstageis
•LowPowerConsumption,80-µAMaximumICCprovidedbyeightindividualdirectdata(A−H)inputs
•Typicaltpd=13nsthatareenabledbyalowlevelattheshift/load
(SH/LD)input.TheSNx4HC165devicesalsofeature
•±4-mAOutputDriveat5V
aclock-inhibit(CLKINH)functionanda
•LowInputCurrentof1µAMaximumcomplementaryserial(QH)output.
•ComplementaryOutputs