This application note highlights the differences between the existing Atmel® tinyAVR® devices ATtiny4/5/9/10 and ATtiny102/104.
ATtiny102/104 devices are not a drop-in replacement for ATtiny4/5/9/10. However, the functionalities are backward compatible with the existing ATtiny4/5/9/10 functionalities.
For differences in errata, typical characteristics, and electrical characteristics between ATtiny4/5/9/10 and ATtiny102/104, refer to the specific device datasheets.
For more details about the device, refer to the latest version of the ATtiny102/104 datasheet.