I am working on a fingerprint security project, based on what I've read so far, I decided to go for AT89S52 as my microcontroller, but I got stuck when I decided to simulate my circuit on Proteus 7.8.
The software offers me AT89C52, but i didn't see AT89S52. So, I am stuck between using AT89C52 but am scared if is going to affect my work, since I don't know if they are the same.
I thought about using another electronics schematic software, I am willing to change but don't know what else to use besides Proteus and the Keil compiler I'm using now. What to do?