What are the criteria for choosing a microcontroller?

1. Meeting the computer needs of the task efficiently & cost effectively-

· Speed , the amount of the ROM & RAM, the no. of the i/o ports & timers, size, packaging, power consumption.

· Easy to upgrade.

2. Availability of software develop tool-

· Assembler. Debugger(use in check syntax), Compiler, emulator(hard wire).

Wide availability & reliable source of microcontroller