what are the difference between AT89C51 and AT89C52?
what are the difference between AT89S51, and AT89S52
exactly what you find by comparing the datasheets.
Erik
8051 and 8052 have some major differnece
1. RAM and ROM size 2. one additional timer
for more information you can visit following website microcontroller51.blogspot.com/
Be careful with that statement. while it is true for the Intel parts, there are several "51" numbered parts with the the "52" elements and more.
Keil probably selected C51 as the name of their compiler because they consider '51 the generic name.
http://www.8052.com probably decided that '52 was the generic name.
The chip manufacturers makes their own decisions where only the datasheet will tell exactly what you get.
Actually, I think it's just that 8051.com was already taken...?
www.8052.com/.../113280
As we're waking up old threads, note that the "8052.com" domain name had been sold off - it is no longer a microcontroller forum!
The old 8052.com forum is now at http://www.8052mcu.com/
See http://www.8052mcu.com/forum/read/190875 for details.