Types of microcontrollers

Types of microcontrollers
See also: List of common microcontrollers
As of 2008 there are several dozen microcontroller architectures and vendors including:
68HC11
8051
ARM processors (from many vendors) using ARM7 or Cortex-M3 cores are generally microcontrollers
STMicroelectronics STM8S (8-bit), and STM32 (32-bit)
Atmel AVR (8-bit), AVR32 (32-bit), and AT91SAM
Freescale ColdFire (32-bit) and S08 (8-bit)
Hitachi H8, Hitachi SuperH
MIPS (32-bit PIC32)
NEC V850
PIC (8-bit PIC16, PIC18, 16-bit dsPIC33 / PIC24)
PowerPC ISE
PSoC (Programmable System-on-Chip)
Rabbit 2000
Texas Instruments MSP430 (16-bit), C2000 (32-bit), and Stellaris (32-bit)
Toshiba TLCS-870
Zilog eZ8, eZ80
and many others, some of which are used in very narrow range of applications or are more like applications processors than microcontrollers. The microcontroller market is extremely fragmented, with numerous vendors, technologies, and markets. Note that many vendors sell (or have sold) multiple architectures. In mid-2009, some consolidation is evident, with vendors pruning product lines.See also: List of common microcontrollers
As of 2008 there are several dozen microcontroller architectures and vendors including:
68HC11
8051
ARM processors (from many vendors) using ARM7 or Cortex-M3 cores are generally microcontrollers
STMicroelectronics STM8S (8-bit), and STM32 (32-bit)
Atmel AVR (8-bit), AVR32 (32-bit), and AT91SAM
Freescale ColdFire (32-bit) and S08 (8-bit)
Hitachi H8, Hitachi SuperH
MIPS (32-bit PIC32)
NEC V850
PIC (8-bit PIC16, PIC18, 16-bit dsPIC33 / PIC24)
PowerPC ISE
PSoC (Programmable System-on-Chip)
Rabbit 2000
Texas Instruments MSP430 (16-bit), C2000 (32-bit), and Stellaris (32-bit)
Toshiba TLCS-870
Zilog eZ8, eZ80
and many others, some of which are used in very narrow range of applications or are more like applications processors than microcontrollers. The microcontroller market is extremely fragmented, with numerous vendors, technologies, and markets. Note that many vendors sell (or have sold) multiple architectures. In mid-2009, some consolidation is evident, with vendors pruning product lines.