Dual 4-Bit Decade Counters

Each of these monolithic circuits contains eight master-slave Flip-Flops and additional gating to implement two individual four-bit Counters in a single package. The '390 and 'LS390 incorporate dual divide-by-two and divide-by-five Counters which CAN be used to implement cycle lengths equal to any whole and/or cumulative multiples of 2 and/or 5 up to divide-by-100. When connected as a bi-quinary Counter the separate divide-by-two circuit CAN be used to provide symmetry (a square wave) at the final output stage. The '393 and 'LS393 each comprise two independent four-bit binary Counters each having a clear and a Clock input. N-bit binary Counters CAN be implemented with each package providing the capability of divide-by-256. The '390, 'LS390, '393, and 'LS393 have parallel outputs from each Counter stage so that any submultiple of the input count frequency is available for system-timing signals. Series 54 and Series 54LS circuits are characterized for operation over the full military temperature range of -55C to 125C; Series 74 and Series 74LS circuits are characterized for operation from 0C to 70C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74LS390DRG4 Texas Instruments LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
SN74LS390N-10 Texas Instruments LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDIP16, PLASTIC, DIP-16
SN74LS390N Texas Instruments Dual 4-Bit Decade Counters 16-PDIP 0 to 70
SN74LS390J-00 Texas Instruments LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, CDIP16
SN74LS390N3 Texas Instruments Dual 4-Bit Decade Counters 16-PDIP 0 to 70
SN74LS390NE4 Texas Instruments Dual 4-Bit Decade Counters 16-PDIP 0 to 70
SN74LS390J Texas Instruments LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, CDIP16, CERAMIC, DIP-16
SN74LS390D Texas Instruments Dual 4-Bit Decade Counters 16-SOIC 0 to 70
SN74LS390NSRE4 Texas Instruments LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDSO16, GREEN, PLASTIC, SOP-16
SN74LS390DE4 Texas Instruments Dual 4-Bit Decade Counters 16-SOIC 0 to 70
SN74LS390 's PackagesSN74LS390 's pdf datasheet
SN74LS390D SOIC
SN74LS390DE4 SOIC
SN74LS390DG4 SOIC
SN74LS390DR SOIC
SN74LS390DRE4 SOIC
SN74LS390DRG4 SOIC
SN74LS390N PDIP
SN74LS390N3 PDIP
SN74LS390NE4 PDIP
SN74LS390NSR SO
SN74LS390NSRE4 SO
SN74LS390NSRG4 SO




SN74LS390 Pinout, Pinouts
SN74LS390 pinout,Pin out
This is one package pinout of SN74LS390,If you need more pinouts please download SN74LS390's pdf datasheet.

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