Microcontroller manufacturers and suppliers

This page lists popular manufacturers of microcontrollers typically used in embedded systems. It also outlines the availability of microcontrollers with certain data-bus widths, types of program memory or connectivity peripherals, for example. The list may not include microcontrollers with "soft" cores and microprocessors with external program and data memory.

2016-03-03

The table below shows some popular manufacturers (or vendors, or suppliers) of microcontrollers (MCUs) and availability of selected technical characteristics of these. The table uses short abbreviations, in order to keep it as compact as possible. The explanation of these abbreviations is provided below the table. We hope, this information could be helpful, for example, as a starting point for crude initial selection of microcontrollers, for new designs of embedded electronic systems, however there is no warranty of any kind that it is correct or up to date.

NameDatabus widthT Peripherals
4 bit8 bit16 bit32 bitDSP
+
105 CANUSBE
Analog Devices *5F
*AF*****
Atmel[BT]
*5F
*AF**MF*MF*F
CYPRESS
*5
*A
*
*
Cyrod Technologies
5F






ELAN**






EMMARINMF*F






Epson*MF*MF




Freescale
*F*F*AF**MF***
HOLTEK
*5F
AF




Infineon
*5F*F*F**5F*F**
LAPIS
MF
*AF




MAXIM
*5MF*F


*
*
Melexis

M

M


Microchip
*5F*FF*
*F*F*F
Nuvoton
*5F
*AF
AAFAFA
NXP


AF
AFAFAFAF
Panasonic
*MF
*MF
**

Renesas*M*MF*F*F

*F*F*
Samsung*M*MF**AF

*A*A
Silicon Labs
5F
AF
5F5F5AF
Spansion
MFMF*AF
*MF*MF**
ST Microelectronics
*F
*AF**F*AF*AF*AF
STC
5F






Texas Instruments

MF*AF*F*AF*AF*AF*AF
Toshiba
*MF*M*AMF*
*AF*AF
Zilog
*5F*F

*F

*
Name4 bit8 bit16 bit32 bitDSP
+
105CANUSBE
Databus widthT Peripherals

Brand transformations

If you do not see a particular brand or a company name in the table above, that could be also because some companies, product lines or brands have undergone transformations. The next few guiding lines might be useful to find more information for some of the former microcontroller brands. For Energy Micro see Silicon Labs. For Fujitsu Semiconductor see Spansion. For OKI Semiconductor see LAPIS Semiconductor. For Atmel and SST see Microchip. For Winbond microcontrollers see Nuvoton.

Abbreviations

* - An asterisk in a cell means that there is at least one MCU belonging to that category (column) or there might be microcontrollers not covered by other symbols.

5 - It means availability of an MCU, which is compatible with Intel MCS-51, also known as 8051 or 8052 microcontroller.

A - There is at least one microcontroller based on a 32-bit ARM-core.

M - There is at least one microcontroller with Mask-ROM program memory in the category marked with this symbol.

F - There is at least one microcontroller with reprogrammable Flash (or EEPROM) program memory in the category marked with this symbol.

Name - A short name or abbreviation may be used in this column. The complete company name, any related brands and trademarks could be found on company's website by following the link.

DSP - This column is for Digital Signal Processors (DSPs) or MCUs with data bus width not listed elsewhere in the table. DSPs are categorized purely by vendor's point of view. Some suppliers offer 16-bit, 40MHz DSPs, while others would simply call their 32-bit, 60MHz chips microcontrollers. Exact performance for signal processing should be checked through manufacturer's specifications.

105 - A symbol in this column means the corresponding vendor provides microcontrollers rated for operation from -40 to +100 degree Celsius. Usually, such temperature range is requirement for automotive electronics but it does not automatically mean automotive qualification, like AECQ100 of AEC, for example.

CAN - A symbol in this column means the supplier offers microcontrollers with on-chip connectivity for Controller Area Network.

USB - It means microcontrollers with on-chip Universal Serial Bus connectivity, either function or host type.

E - Ethernet connectivity, regardless its speed grade.

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