TC74VHC238FT-ELK(M) TC74VHC238F-TP2 TC74VHC240F TC74VHC240F- TC74VHC240F EL TC74VHC240F(EL TC74VHC240F(EL) TC74VHC240F(EL,K,F TC74VHC240F(ELKF TC74VHC240F(ELKF)