CD74HC221PW CD74HC221M LTC6993CDCB-1#TRMPBF LTC6993CDCB-3#TRMPBF LTC6993CDCB-4#TRMPBF LTC6993HS6-2#WTRMPBF LTC6993HS6-1#WTRMPBF LTC6993HDCB-2#TRMPBF LTC6993HS6-4#TRMPBF SN74121N LTC6993MPS6-3#TRMPBF CD14538BNSR SN74AHC123APWR 74HC123BQ,115 SN74LVC1G123DCUR CD74HC123M96 CD74HC4538M96 CD74HC4538PWR CD4098BPWR CD74HC4538NSR