suggestion regarding to choose controller

[jay_3189]

I want to use pic controller so, please suggest me the controller which is best in pic controller.
I want interface RTC, Temperature Sensor, and RS232 or USB, I2C.

and also suggest me controller which has inbuit RTC pin in pic or other then PIC.

 

[shegzzyy]

Best is a relative term.It depends on what you intend to use it for.choosing a particular pic depends on lots of consideration like your knowledge base,availability of learning materials,online support and help etc.if you are a newbie,you can go for pic16f84a/pic16f628a because there are loads of online help and materials.if you are an intermediate user,you can go for pic16f877a or pic16f887.they also have a lot of online support.You can interface the above hardware you mentioned with the pic above