components AT89C51CC03 T89C51CC01 T89C51CC02 AT90CAN128

8051-based Microcontroller 
Device  Description
AT89C51CC03  8-bit microcontroller with CAN controller and 64-Kbyte Flash. 2-Kbyte RAM, 2-Kbyte EEPROM, SPI. Power Fail Detect (no need for external brown- out). Pinout compatible with T89C51CC01. 
 
T89C51CC01  8-bit microcontroller with CAN controller and 32- Kbyte Flash
We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input 
 
T89C51CC02  Low pin count 8-bit microcontroller with CAN controller and 16-Kbyte Flash
We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input 
 
AVR-based Microcontroller 
Device  Description
AT90CAN128  8-bit AVR Microcontroller with 128K Bytes of ISP Flash and CAN Controller.