RM24C64 RM24C64A-BSNC-B RM24C64AF-0-GCSI-T RM24C64AF-7-GCSI-T RM24C64B-BSNC-B RM24C64B-BSNC-T RM24C64B-BTAC-T RM24C64BF-0-GCSI-T RM24C64BF-7-GCSI-T RM24C64C-BSNC-B