Hi thereYou can use At89c52 | Projects › Projects › project on digital security lock system using microcontroller 89c51 by sri.venkatraman › Hi thereYou can use At89c52 February 25, 2017 at 6:38 am #14482 GANEEV SINGHParticipant Hi there You can use At89c52 instead of c51; former has 8KB falsh size which will definitely suit your purpose. Also do not forget to change your microcontroller settings to that of c52's otherwise burner will not recognize this new IC. Hope this helps
