SN74ALS640BNSG4
SN74ALS640BNSR
SN74ALS640BNSRE4
SN74ALS640BNSRG4
SN74ALS641A-1DB
SN74ALS641A-1DBE4
SN74ALS641A-1DBG4
SN74ALS641A-1DBR
SN74ALS641A-1DBRE4
SN74ALS641A-1DBRG4