ic

As the name suggests, An Integrated Circuit (IC), is a summation of electronic elements of a functional circuit available in small package.

Integrated Circuit (IC) is also called as Chip or Microchip or Silicon Chip,

In other words, IC is a small semiconductor wafer, usually made of silicon, on which multiple tiny transistors, resistors, diodes, capacitors etc., are fabricated to form a useful or functional circuit, which is enclosed in a plastic or ceramic material with the connecting pins on its periphery (or surface).

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An IC can do following functions in single or combination of counter, timer,  amplifier,  voltage regulation, oscillator, memory, ADC, DAC , arthematics etc.  A microprocessor or a micro-controller also falls under IC catagory.

Integration:

The complexity and functionality of an IC depends on the number of transistors and associated electronic components used on a silicon wafer. The following is the types of integration and associated number of transistors used in the IC.

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ICs are available in various packages with specific name.  The package name indicates the size, shape, position of pins, pin out format etc.

All Micro-Processors, Micro-Controllers, Voltage Regulators, Op-Amps etc., are ICs (Integrated Circuits) only