SN54290, SN54293, SN54LS290, SN54LS293 SN74290, SN.
Texas Instruments
SN74293 - DECADE AND 4-BIT BINARY COUNTERS
SN54290, SN54293, SN54LS290, SN54LS293 SN74290, SN74293, SN74LS290, SN74LS293 DECADE AND 4-BIT BINARY COUNTERS SDLS097 – MARCH 1974 – REVISED MARCH 19.
