74LS90

Decade and Binary Counters

GeneralDescription Eachofthesemonolithiccounterscontainsfourmasterslaveflip-flopsandadditionalgatingtoprovideadivide-by twocounterandathree-stagebinarycounterforwhichthecountcyclelengthisdivide-by-fivefortheDM74LS90. Features ■Typicalpowerdissipati

74LS90

The ’90 is a 4-stage ripple counter containing a high speed flip-flop acting as a divide-by-two and three flip-flops connected as a divideby- five counter.

DESCRIPTION—The’90isa4-stageripplecountercontainingahighspeed flip-flopactingasadivide-by-twoandthreeflip-flopsconnectedasadivideby- fivecounter.ItcanbeconnectedtooperatewithaconventionalBCDoutput patternoritcanbeconnectedtoprovidea50dutycycleoutpu

74LS90

Decade and Binary Counters

GeneralDescription Eachofthesemonolithiccounterscontainsfourmasterslave flip-flopsandadditionalgatingtoprovideadivide-bytwo counterandathree-stagebinarycounterforwhichthe countcyclelengthisdivide-by-fivefortheDM74LS90. Allofthesecountershaveagatedzerorese

74LS90

DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER

74LS90

Decade and Binary Counters

74LS90D

4-BIT BINARY COUNTER

TheSN54/74LS90,SN54/74LS92andSN54/74LS93arehigh-speed4-bitrippletypecounterspartitionedintotwosections.Eachcounterhasadivide-by-twosectionandeitheradivide-by-five(LS90),divide-by-six(LS92)ordivide-by-eight(LS93)sectionwhicharetriggeredbyaHIGH-to-LOWtrans

74LS90DC

The ’90 is a 4-stage ripple counter containing a high speed flip-flop acting as a divide-by-two and three flip-flops connected as a divideby- five counter.

DESCRIPTION—The’90isa4-stageripplecountercontainingahighspeed flip-flopactingasadivide-by-twoandthreeflip-flopsconnectedasadivideby- fivecounter.ItcanbeconnectedtooperatewithaconventionalBCDoutput patternoritcanbeconnectedtoprovidea50dutycycleoutpu

74LS90FC

The ’90 is a 4-stage ripple counter containing a high speed flip-flop acting as a divide-by-two and three flip-flops connected as a divideby- five counter.

DESCRIPTION—The’90isa4-stageripplecountercontainingahighspeed flip-flopactingasadivide-by-twoandthreeflip-flopsconnectedasadivideby- fivecounter.ItcanbeconnectedtooperatewithaconventionalBCDoutput patternoritcanbeconnectedtoprovidea50dutycycleoutpu

74LS90PC

The ’90 is a 4-stage ripple counter containing a high speed flip-flop acting as a divide-by-two and three flip-flops connected as a divideby- five counter.

DESCRIPTION—The’90isa4-stageripplecountercontainingahighspeed flip-flopactingasadivide-by-twoandthreeflip-flopsconnectedasadivideby- fivecounter.ItcanbeconnectedtooperatewithaconventionalBCDoutput patternoritcanbeconnectedtoprovidea50dutycycleoutpu

DM74LS90

DecadeandBinaryCounters