List of common microcontrollers

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, or 7)
- 8xC251
16-bit
- MCS-96 (8096 family – also incl. 8061)
- Intel MCS 296

Lattice Semiconductor

(Renesas is a joint venture of Hitachi and Mitsubishi Electric.)

C8051F300
- QFN11 case(3x3 mm), 25MIPS, 8kb Flash, 256b ram 8io, UART,SMBus, 3 timers, 8 bit 8 ch 500kbs ADC, temp, comp.
C8051F120
- TQFP100 case, 128k Flash, 8448b RAM, 64io, 2 UARTS, SMBus, SPI, 5 timers, 8ch 12b + 8ch 8b ADC, 2ch 12 bit DAC, temp, 2xcomp, 16x16MAC.
- The ToolStick of Silabs is an USB stick size development tool with a limited compiler including a C8051F300 target and an USB MCU C8051F321. (www.silabs.com)

SM2XX Family - Flash Memory Card Controllers
SM321 - USB 2.0
SM323 - USB 2.0
SM323E - USB 2.0
- Silicon Motion's SM321E and SM324 controllers support SLC and MLC NAND flash from Samsung, Hynix, Toshiba and ST Micro as well as flash products from Renesas, Infineon and Micron. The SM321E is available in a 48-pin LQFP package and a 44-pin LGA package. The SM321E supports up to 4 SLC or MLC NAND flash chips with 4 bytes / 528 bytes ECC
SM324 - USB 2.0
- Supports dual-channel data transfer at read speeds of 233x (35 MB/s) and write speeds of 160x (24 MB/s), making it the fastest USB 2.0 flash disk controller in the market. The SM324 also has serial peripheral interface (SPI) which allows for not only Master and Slave modes, but the flexibility to develop more functionality into USB flash disk (UFD) products such as GPS, fingerprint sensor, Bluetooth and memory-capacity display. The SM324 is available in a 64-pin LQFP package. The SM324 supports 8 SLC or MLC NAND flash chips with 4 bytes / 528 bytes ECC.
SM330 - USB 2.0
SM501 - Mobile Graphics
SM712 - Mobile Graphics
SM722 - Mobile Graphics
SM340 - MP3/JPEG
SM350 - MP3/JPEG
SM370 - Image processing

SX-20 SX-28, SX-48, SX-52
- Ubicom's SX series is an 8 bit microcontroller which has unusually high speed, up to 75 MHz (75 MIPS), and a high degree of flexibility. Andre LaMothe has proven that the SX-52 can actually be clocked to 80 MHz (80 MIPS) even though the specs say 75 MHz is the maximum. He has used the SX-52 in thousands of XGameStation development computers all running at 80 MHz. Some users have referred to these microcontrollers as PICs on steroids. While Ubicom's SX micros are limited in variety, their high speed and additional resources allow programmers to create 'virtual devices' as required. Refer to Parallax's Web site for information, as they are the main distributor of these devices.
IP2022
- Ubicom's IP2022 is a high performance (120 MIPs) 8 bit microcontroller. Features include: 64k FLASH code memory, 16k PRAM (fast code and packet buffering), 4k data memory, 8-channel A/D, various timers, and on-chip support for Ethernet, USB, UART, SPI and GPSI interfaces.
IP3022
- IP3022 is Ubicom's latest high performance 32bit processor running at 250 MHz featuring 8 hardware threads. It is specifically targeted at Wireless Routers.

Zilog's (primary) microcontroller families, in chronological order:

Older:
- Zilog Z8 - 8-bit Harvard architecture ROM / EPROM / OTP microcontroller with on-chip SRAM.
- Zilog Z180 - Z80 based microcontroller; on-chip peripherals; external memory; 1 MB address space.
Newer:
- Zilog eZ8 - Better pipelined Z8 (2-3 times as clock cycle efficient as original Z8) with on-chip Flash memory and SRAM.
- Zilog eZ80 - Fast 8/16/24-bit Z80 (3-4 times as cycle efficient as original Z80) with FLASH, SRAM, peripherals; linear addressing of 16 MB.
- Zilog Z16 - Fast 8/16/32-bit CPU with compact object code; 16 MB (4GB possible) addressing range; FLASH, SRAM, peripherals, on chip.