TC74VHC00AFT TC74VHC00F TC74VHC00F SOP5.2 TC74VHC00F(EL TC74VHC00F(EL) TC74VHC00F(EL,F) TC74VHC00F(EL,K,F) TC74VHC00F(ELF) TC74VHC00F(ELKF) TC74VHC00F(K.F)