Número de pieza	Fabricante / Marca	Breve descripción
SST89E54RD2A-40-C-NJE	Microchip Technology	IC MCU 8BIT 32KB FLASH 44PLCC
SST89E54RD2A-40-C-TQJE	Microchip Technology	IC MCU 8BIT 32KB FLASH 44TQFP
SST89E54RD2A-40-C-TQJE-T	Microchip Technology	IC MCU 8BIT 24KB FLASH 44TQFP
SST89E54RDA-40-C-PIE	Microchip Technology	IC MCU 8BIT 32KB FLASH 40DIP