Microcontroller 单片机
（重定向自Microprocessor control）
![The die from an Intel 8742, an 8-bit microcontroller that includes a CPU running at 12 MHz, 128 bytes of RAM, 2048 bytes of EPROM, and I/O in the same chip.](/Images/godic/202501/27/Intel_8742_1530569951353.jpg")
![Two ATmega microcontrollers](/Images/godic/202501/27/Microcontrollers_Atmega32_Atmega81353.jpg")
![A PIC 18F8720 microcontroller in an 80-pin TQFP package.](/Images/godic/202501/27/PIC18F87201353.jpg")
![Die of a PIC12C508 8-bit, fully static, EEPROM/EPROM/ROM-based CMOS microcontroller manufactured by Microchip Technology using a 1200 nanometre process.](/Images/godic/202501/27/PIC12C508-HD1353.jpg")
A microcontroller is a small computer (SoC) on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals. Program memory in the form of Ferroelectric RAM, NOR flash or OTP ROM is also often included on chip, as well as a typically small amount of RAM. Microcontrollers are designed for embedded applications, in contrast to the microprocessors used in personal computers or other general purpose applications consisting of various discrete chips.