What does SOC usually have?

System-on-a-chip or system on chip (SoC or SOC) refers to integrating all components of a computer or other electronic system into a single integrated circuit (chip). Usually it consists of

  • One microcontroller, microprocessor or DSP core(s). Some SoCs – called multiprocessor System-on-Chip (MPSoC) – include more than one processor core.
  • Memory blocks including a selection of ROM, RAM, EEPROM and flash.
  • Timing sources including oscillators and phase-locked loops.
  • Peripherals including counter-timers, real-time timers and power-on reset generators.
  • External interfaces including industry standards such as USB, FireWire, Ethernet, USART, SPI.
  • Analog interfaces including ADCs and DACs.
  • Voltage regulators and power management circuits.

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