Short answer is yes. It does require some interface circuitry, which can be found at www.8052.com
can we replace AT89c51 by AT89s52 but i have c51 code
The Atmel AT89S52 is a microcontroller in the 80C51 family.
AT89S52 is a microcontroller based on the Intel 8051 architecture and features. Concerning your question, AT89S52 is the heart of most project involving Dual Tone Multi Frequency (DTMF), that is to say it is the controller IC used in such project.
The AT89S52 microcontroller operates at a frequency of 12 MHz.
the abbreviation for MIPS in Programmable system on chip is MEGA INSTRUCTIONS PER SECOND........
yes
semi conductor
32
Field Programmable System Level Integrated Circuits?
programmable And System Administration Assistant
Its an I\O controller
yeah it does