I m using MSC1210Y5 for some application Features i require: 1. 1 uart(atleast) 2. Keil UV2 compatibility 3. Working on 5V supply 4. 12 Port pins(atleast) Can any of you suggest me some other controller that has the above mentioned features but on the same, costs less? MSC1210Y5 comes for 12$. That is very costly. Plus it has A/D section which lies redundant.