AT93C46R-10SI-2.7 AT93C46R-10SI-27 AT93C46R-10SU-2.7 AT93C46RA-10SC AT93C46RSC AT93C46R-SC AT93C46R-SC1.8 AT93C46R-SC2.7 AT93C46R-SC27 AT93C46R-SI-2