hi everybody
I want to connect RC Switch 433mhz to an AVR IC. The switch sends some commands to IC. I want to calculate time between commands and have interrupt pin for getting these commands. I need an avr IC that has an interrupt pin and can support crystal that for calculating time in my code. it's essential that IC has less than 16 pins. I would be grateful if you could give me any suggestion to select appropriate IC.

 

Tiny AVRs may be what you want if you don't need much memory.

http://www.atmel.com/products/microcontrollers/avr/tinyAVR.aspx