SN74LS26NS
SN74LS26NSE4
SN74LS26NSG4
SN74LS26NSR
SN74LS26NSRE4
SN74LS26NSRG4
SN74LS273DW
SN74LS273DWE4
SN74LS273DWG4
SN74LS273DWR