- Annuaire de parent racine/5/4/H/C/ 54HC157 Fiche technique 54HC4040 Fiche technique 54HC4046RP Fiche technique 54HC4050 Fiche technique 54HC4050RPFB Fiche technique 54HC4050RPFE Fiche technique 54HC4050RPFI Fiche technique 54HC4050RPFS Fiche technique 54HC541 Fiche technique 54HCT240 Fiche technique