AT24C08C-SSHM-B AT24C08C-SSHM-B. AT24C08C-SSHM-T AT24C08C-SSHM-T EEPROM存储器 AT24C08C-SSHM-T IC AT24C08C-SSMH-T AT24C08C-SSPD-T AT24C08C-STPD-TVAO AT24C08C-STUM AT24C08C-STUM-T