Difference between at89c51 and at89s51 | Microcontroller › 8051 › Difference between at89c51 and at89s51 This topic has 2 replies, 3 voices, and was last updated 9 years, 11 months ago by srishti srishti. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts April 13, 2013 at 9:32 am #2265 Mukesh Kumar JenaParticipant I want to know if there is any coding difference between at89c51 and at89s51. And what header file I must use while coding with at89s51. Also how to burn hex file into at89s51 using ISP April 13, 2013 at 9:58 am #9480 aswathycmParticipant anybody knows the microcontroller program for digital thermometer at89c51………. April 26, 2013 at 12:16 pm #9585 srishti srishtiParticipant Can I use AT89S51 instead of AT89C51. Will there be any difference in the code. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In