- C8051
- Cast, Inc.
- Legacy-Speed 8-Bit Processor Core
- C8051
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU Family
- C8051F000
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU
- C8051F001
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU
- C8051F002
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU Family
- C8051F005
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU Family
- C8051F006
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU Family
- C8051F007
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU
- C8051F010
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU Family
- C8051F011
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU
- C8051F012
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU Family
- C8051F015
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU Family
- C8051F015DK
- Cygnal Technologies
- C8051F018 16K Flash, 1.25K RAM, 10-Bit ADC, 64-Pin MCU
- C8051F016
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU Family
- C8051F017
- Cygnal Technologies
- Mixed-Signal 32KB ISP FLASH MCU
- C8051F018
- Cygnal Technologies
- Mixed-Signal 16KB ISP FLASH MCU Family
- C8051F019
- Cygnal Technologies
- 16K Flash, 1.25K RAM, 10-Bit ADC, 48-Pin MCU
- C8051F020
- Cygnal Technologies
- Mixed-Signal 64KB ISP FLASH MCU
- C8051F0201
- Cygnal Technologies
- Mixed-Signal ISP FLASH MCU Family
- C8051F0202
- Cygnal Technologies
- Mixed-Signal ISP FLASH MCU Family
- C8051F0203
- Cygnal Technologies
- Mixed-Signal ISP FLASH MCU Family
- C8051F020DK
- Cygnal Technologies
- Mixed-Signal 64KB ISP FLASH MCU
- C8051F021
- Cygnal Technologies
- Mixed-Signal 64KB ISP FLASH MCU
- C8051F022
- Cygnal Technologies
- Mixed-Signal 64KB ISP FLASH MCU
- C8051F023
- Cygnal Technologies
- Mixed-Signal 64KB ISP FLASH MCU
- C8051F040
- Cygnal Technologies
- CAN2.0B 64KB ISP FLASH MCU
- C8051F040DK
- Cygnal Technologies
- CAN2.0B 64KB ISP FLASH MCU
- C8051F041
- Cygnal Technologies
- CAN2.0B 64KB ISP FLASH MCU
- C8051F042
- Cygnal Technologies
- CAN2.0B 64KB ISP FLASH MCU
- C8051F043
- Cygnal Technologies
- CAN2.0B 64KB ISP FLASH MCU
- C8051F060
- Cygnal Technologies
- 16-bit ADCs, CAN, 64KB FLASH, 100-Pin MCU
- C8051F061
- Cygnal Technologies
- 16-bit ADCs, CAN, 64KB FLASH, 64-Pin MCU
- C8051F062
- Cygnal Technologies
- 16-bit ADCs, CAN, 64KB FLASH, 100-Pin MCU
- C8051F063
- Cygnal Technologies
- Mixed-Signal ISP FLASH MCU Family
- C8051F120
- Cygnal Technologies
- 128K Flash, 8.25K RAM, 12-bit ADC, 100-Pin MCU
- C8051F121
- Cygnal Technologies
- High-Speed Mixed-Signal ISP FLASH MCU
- C8051F122
- Cygnal Technologies
- 128K Flash, 8.25K RAM, 10-bit ADC, 100-Pin MCU
- C8051F123
- Cygnal Technologies
- High-Speed Mixed-Signal ISP FLASH MCU
- C8051F124
- Cygnal Technologies
- High-Speed Mixed-Signal ISP FLASH MCU
- C8051F125
- Cygnal Technologies
- 50MIPS, 128K Flash, 12-bit ADC, 64-Pin MCU
- C8051F126
- Cygnal Technologies
- High-Speed Mixed-Signal ISP FLASH MCU
- C8051F127
- Cygnal Technologies
- 50MIPS, 128K Flash, 10-bit ADC, 64-Pin MCU
- C8051F206
- Cygnal Technologies
- Mixed-Signal 8KB ISP FLASH MCU Family
- C8051F220
- Cygnal Technologies
- Mixed-signal 8KB ISP flash MCU
- C8051F221
- Cygnal Technologies
- Mixed-Signal 8KB ISP FLASH MCU
- C8051F226
- Cygnal Technologies
- Mixed-Signal 8KB ISP FLASH MCU
- C8051F226DK
- Cygnal Technologies
- 8K Flash, 256 RAM, 32-Pin MCU