T89C51RD2-RLTI-M T89C51RD2-RLUC-L T89C51RD2-RLUI-M T89C51RD2-RLVIL T89C51RD2-RLVIM T89C51RD2RLVIMPULLS T89C51RD2-RLWC-M T89C51RD2-RLWI-M T89C51RD2-SL T89C51RD2-SLBI-L