How to select a microcontroller

摘要: A set of guidelines for the designer to use as a checklist evaluating candidate devices is given. The first decision examined level performance required, that is, on word size controller. second step identify quantity, frequency, and type all input/output (I/O) signals, well any other special requirements, including those imposed by mechanical aspects system. third consideration application's memory which should be further broken down into program data memory. Mapping I/O peripherals choice single-chip or expanded are discussed. feature-selection process addressed, stressing an absolute match between requirements features not necessary, since minor alterations addition peripheral chip could create most cost-effective solution from less-than-perfect pairing. >