List of common microcontrollers


This is a list of common microcontrollers listed by brand.

Altera

In 2015, Altera was acquired by Intel, and then spun back out on its own in 2024.
While Arm is a fabless semiconductor company, it licenses the ARM architecture family design to a variety of companies.
Those companies in turn sell billions of ARM-based chips per year—12 billion ARM-based chips shipped in 2014,
about
24 billion ARM-based chips shipped in 2020,
some of those are popular chips in their own right.

Atmel

In 2016, Atmel was sold to Microchip Technology.
In 2020, Cypress Semiconductor was acquired by Infineon Technologies.
ELAN Microelectronics Corporation is an IC designer and provider of 8-bit microcontrollers and PC Peripheral ICs. Headquartered in Hsinchu Science Park, the Silicon Valley of Taiwan, ELAN's microcontroller product range includes the following:
  • EM78PXXX Low Pin-Count MCU Family
  • EM78PXXX GPIO Type MCU Family
  • EM78PXXXN ADC Type MCU Family
These are clones of the 12- and 14-bit Microchip PIC line of processors, but with a 13-bit instruction word.

EPSON Semiconductor

  • 4-bit
  • *S1C6x family
  • 8-bit
  • * S1C88 family
  • 16-bit
  • * S1C17 family
  • 32-bit
  • * S1C33 family

    Espressif Systems

, a company with headquarters in Shanghai, China made its debut in the microcontroller scene with their range of inexpensive and feature-packed WiFi microcontrollers such as ESP8266.
  • 32-bit
  • * ESP8266
  • * ESP32 Xtensa variants
  • ** ESP32, ESP32-S2, ESP32-S3 SoCs
  • * ESP32 RISC-V variants
  • ** ESP32C2, ESP32C3, ESP32C6, ESP32H2 SoCs

    Freescale Semiconductor

Until 2004, these microcontrollers were developed and marketed by Motorola, whose semiconductor division was spun off to establish Freescale. In 2015, Freescale was acquired by NXP.

Holtek

Holtek Semiconductor is a major Taiwan-based designer of 32-bit microcontrollers, 8-bit microcontrollers and peripheral products. Microcontroller products are centred around an ARM core in the case of 32-bit products and 8051 based core and Holtek's own core in the case of 8-bit products. Located in the Hsinchu Science Park, the company's product range includes the following microcontroller device series:
  • HT32FXX 32-bit ARM core microcontroller series using Cortex-M0+, M3 and M4 cores
  • HT85FXX 8051 Core based microcontroller series
  • HT48FXX Flash I/O type series
  • HT48RXX I/O type series
  • HT46RXX A/D type series
  • HT49RXX LCD type series
  • HT82XX Computer Peripheral series
  • HT95XX Telecom Peripheral series
  • HT68FXX I/O Type Flash series
  • HT66FXX A/D Type Flash series
  • HK32XX 32-bit ARM core series

    Hyperstone

  • 32-bit Hyperstone microprocessors: E1, introduced in 1990, and E2, introduced in 2009

    Infineon

offers microcontrollers for the automotive, industrial and multimarket industry. , a component based auto code generation free tool, provides faster development of complex embedded projects.
  • * XC800 family Based on the 8051 architecture the XC800 is divided into the A- and I- Family, providing low cost micros, for example applied in applications like body, safety, motor control, intelligent lighting and electro mobility
  • * XE166 family, a Real Time Signal Controller applied in industrial applications
  • * XC 2000 family, designed for Automotive applications
  • * C166 family
  • * C167 family
  • *Infineon XMC4000 is an ARM Cortex M4F based microcontroller family for industrial applications.
  • * TriCore™ family is based on a unified RISC/MCU/DSP processor core. Infineon launched the first generation of AUDO in 1999. The TC1782 is the first member of the AUDO MAX family designed for automotive applications
  • * Infineon XMC1000 is a 32-bit Industrial Microcontroller ARM® Cortex™-M0, 32 MHz.
  • * Infineon Embedded Power Relay Driver IC - ARM® Cortex™-M0 based family for automotive applications
  • * Infineon Embedded Power 2-Phase Bridge Driver IC - ARM® Cortex™-M3 based family for Brushed DC Motors
  • * Infineon Embedded Power 3-Phase Bridge Driver IC - ARM® Cortex™-M3 based family for Brushless DC Motors

    Intel

  • 8-bit
  • * MCS-48 8048 family - also incl. 8035, 8038, 8039, 8040, 8X42, 8X49, 8050; X=0 or 7
  • * MCS-51 8051 family - also incl. 8X31, 8X32, 8X52; X=0, 3, 7 or 9
  • * MCS-151 High-performance 8051 instruction set/binary compatible family
  • 8/16-bit/32-bit
  • * MCS-251 32-bit ALU with 1/8/16/32-bit CISC instruction set and 24-bit external address space. Fully binary compatible to the 8051 8-bit family.
  • 16-bit
  • * MCS-96
  • * Intel MCS-296

    Lattice Semiconductor

  • Mico8 8-bit soft microprocessor
  • Mico32 32-bit soft microprocessor

    Maxim Integrated

In 2021, Maxim Integrated was acquired by Analog Devices.
  • 8051 Family
  • MAXQ RISC Family
  • Secure Micros Family
  • ARM 922T
  • MIPS 4kSD

    Microchip Technology

Since 2013, Microchip has shipped over 1 billion PIC microcontrollers per year, growing every year.
Microchip produces microcontrollers with three very different architectures:
8-bit PICmicro, with a single accumulator :
  • PIC10 and PIC12: 12-bit instruction words
  • PIC16 series: 14-bit instruction words, one address pointer
  • * PIC16F628 – PIC16F84A is still in production as of April 8, 2022.
  • PIC18 series: 16-bit instruction words, three address pointers
16-bit microcontrollers, with 16 general-purpose registers
  • PIC24: 24-bit instruction words
  • dsPIC: based on PIC24, plus DSP functions, such as a single-cycle MAC into two 40-bit accumulators.
32-bit microcontrollers:
  • Series: 16/32-bit instructions, uses the MIPS32 microAptiv UC Core MIPS architecture
  • PIC32MX series: 32-bit instructions, uses the MIPS32 M4K Core MIPS architecture
  • PIC32MZ series: 32-bit instructions, uses the MIPS32 M-Class Core MIPS architecture

    National Semiconductor

  • 4-bit
  • * COP400
  • 8-bit
  • * COP8
  • 16-bit
  • * CR16

    NEC

  • 4-bit
  • * 17K
  • * 75X
  • * 75XL
  • 8-bit
  • * 87XL
  • * 87AD
  • 78K Family
  • * 8-bit: 78K/1, 78K/2, 78K/0, 78K0S
  • * 16-bit: 78K/3, 78K/6, 78K/4, 78K0R
  • 32-bit
  • * V60V80
  • * V810/V830
  • * V850

    Nordic Semiconductor

is a company with headquarters in Trondheim, Norway offering low power Bluetooth Low Energy SoCs as well as cellular network connectivity solutions for IoT devices.
is a joint venture comprising the semiconductor businesses of Hitachi, Mitsubishi Electric and NEC Electronics, creating the largest manufacturer in the world.
  • 4-bit microcontrollers
  • * 720
  • 8-bit microcontrollers
  • * 78K0
  • * 78K0S
  • * 740
  • 16-bit microcontrollers
  • * RL78
  • * 78K0R
  • * R8C
  • * M16C
  • * H8S
  • * H8
  • * H8/Super Low Power
  • 32-bit microcontrollers
  • * RH850
  • * RX
  • * SuperH
  • * V850
  • * R32C
  • * M32C
  • * M32R
  • * H8SX

    Redpine Signals

  • RS14100
  • RS13100

    Rockwell

semiconductors created a line of 6502 based microcontrollers that were used with their telecom chips. Most of their microcontrollers were packaged in a QIP package.
  • R6501
  • R6511
  • R8070

    Silicon Laboratories

Manufactures a line of 8-bit 8051-compatible microcontrollers, notable for high speeds and large memories in relatively small package sizes. A free IDE is available that supports the USB-connected ToolStick line of modular prototyping boards. These microcontrollers were originally developed by Cygnal. In 2012, the company introduced ARM-based mixed-signal MCUs with very low power and USB options, supported by free Eclipse-based tools. The company acquired Energy Micro in 2013 and now offers a number of ARM-based 32-bit microcontrollers.
  • 8-bit
  • * C8051
  • * EFM8 series
  • 32-bit
  • * ARM Cortex-M0+
  • ** EFM32 Zero
  • * ARM Cortex-M3
  • ** EFM32 Tiny, Gecko, Leopard, Giant
  • * ARM Cortex-M4
  • ** EFM32 Wonder