74HC273J Integrated Circuit - CASE: CDIP20 MAKE: Texas Instruments

SN54LS688J SemiConductor - CASE: CDIP20 MAKE: Generic

SN54HC273J SemiConductor - CASE: CDIP20 MAKE: Generic

SN54LS540J SemiConductor - CASE: CDIP20 MAKE: Generic

PAL16R6ACJ Integrated Circuit - CASE: CDIP20 MAKE: Generic

SN54LS241J INTEGRATED CIRCUIT CDIP-20

54LS273J Integrated Circuit - CASE: CDIP20 MAKE: Texas Instruments

SN54LS20J Integrated Circuit - CASE: DIP14 MAKE: Generic