SN75C185N Integrated Circuit - CASE: DIP20 MAKE: Texas Instruments

SN74181N Semiconductor - CASE: DIP24 MAKE: Texas Instruments

74LS273 Integrated Circuit TTL - CASE: DIP20 MAKE: Texas Instruments

SN74LS382AN SemiConductor - CASE: DIP20 MAKE: Generic

74LS245N Integrated Circuit - CASE: DIP20 MAKE: Texas Instruments

SN54LS240J Integrated Circuit - CASE: DIP20 MAKE: Texas Instruments

SN74HCT563N SemiConductor - CASE: DIP20 MAKE: Generic

SN74AS805BN SemiConductor - CASE: DIP20 MAKE: TXS