8051 Core 8-bit Microcontrollers - MCU

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Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
Package/Case
Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Mounting Style
Data Bus Width
Minimum Operating Temperature
Maximum Operating Temperature
Series
Qualification
Packaging
Infineon Technologies 8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
138In Stock
Min.: 1
Mult.: 1

8051 16 kB 2 kB TQFP-100 50 MHz 12 bit 70 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3244 Tray
Microchip Technology 8-bit Microcontrollers - MCU Keybrd & Embedded Cntlr
Datasheet
232In Stock
Min.: 1
Mult.: 1

8051 64 kB VTQFP-128 32 MHz 10 bit 56 I/O 3.3 V 3.3 V SMD/SMT 8 bit 0 C + 85 C Tray
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers
Datasheet
7In Stock
Min.: 1
Mult.: 1

8051 16 kB 1 kB TQFP-44 33 MHz No ADC 32 I/O 4.5 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C DS87C520 Tray
Microchip Technology 8-bit Microcontrollers - MCU CAN TQFP44 TRAY I. Bootloader UART GREEN
Datasheet
3,605In Stock
Min.: 1
Mult.: 1

8051 32 kB 1.25 kB TQFP-44 40 MHz 10 bit 34 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 CANBOOT GREEN
Datasheet
2,264In Stock
Min.: 1
Mult.: 1

8051 64 kB 2 kB TQFP-44 60 MHz 10 bit 36 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 UARBOOT GREEN
Datasheet
2,755In Stock
Min.: 1
Mult.: 1

8051 64 kB 2 kB TQFP-44 60 MHz 10 bit 36 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51ID2 64kF 32KHz TQFP44 3-5.5V I. GREEN
Datasheet
2,482In Stock
Min.: 1
Mult.: 1

8051 64 kB 2 kB TQFP-44 60 MHz No ADC 34 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Ind 5V GREEN
Datasheet
2,838In Stock
Min.: 1
Mult.: 1

8051 32 kB 1.25 kB TQFP-44 60 MHz No ADC 32 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)
Datasheet
3,421In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

8051 8 kB 768 B QFN-20 25 MHz No ADC 17 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F331 Reel, Cut Tape, MouseReel

Lumissil 8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm)
Datasheet
1,750In Stock
Min.: 1
Mult.: 1
Reel: 2,500

8051 32 KB 2 KB WQFN-24 25 MHz 20 I/O 2.5 V 5.5 V SMD/SMT 8 bit - 40 C + 125 C Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU C51AC2 32kF ADC EEP TQFP44 ind 5V GREEN
Datasheet
375In Stock
910Expected 19/02/2026
Min.: 1
Mult.: 1

8051 32 kB 128 B TQFP-44 40 MHz 10 bit 34 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51AC3 64kF ADC EEP TQFP44 ind 5V GREEN
Datasheet
977In Stock
Min.: 1
Mult.: 1

8051 64 kB 128 B TQFP-64 60 MHz 10 bit 36 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU CAN TQFP44 TRAY I. Bootloader CAN GREEN
Datasheet
1,478In Stock
Min.: 1
Mult.: 1

8051 32 kB 1.25 kB TQFP-44 40 MHz 10 bit 34 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind Reel GREEN
Datasheet
451In Stock
Min.: 1
Mult.: 1
Reel: 2,000

8051 64 kB 2 kB TQFP-44 60 MHz 34 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind GREEN
Datasheet
771In Stock
Min.: 1
Mult.: 1

8051 64 kB 2 kB TQFP-44 60 MHz 34 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 COM 5V GREEN
Datasheet
428In Stock
Min.: 1
Mult.: 1

8051 16 kB 1.25 kB TQFP-44 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Com 5V GREEN
Datasheet
1,331In Stock
Min.: 1
Mult.: 1

8051 32 kB 1.25 kB TQFP-44 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU MCUs AT89x, 64KB Flash, TQFP-44
Datasheet
298In Stock
Min.: 1
Mult.: 1
Reel: 2,000

8051 64 kB 2 kB TQFP-44 60 MHz 34 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU C51RD2 64kF TQFP44 3-5.5V Ind. GREEN
Datasheet
292In Stock
Min.: 1
Mult.: 1

8051 64 kB 2 kB TQFP-44 60 MHz 34 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU
Datasheet
2,767In Stock
Min.: 1
Mult.: 1

8051 128 kB 8.25 kB TQFP-100 100 MHz 8 bit, 12 bit 64 I/O 3 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F120 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU
Datasheet
817In Stock
Min.: 1
Mult.: 1

8051 128 kB 8.25 kB TQFP-64 100 MHz 8 bit, 12 bit 32 I/O 3 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F121 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU
Datasheet
2,359In Stock
Min.: 1
Mult.: 1

8051 16 kB 1.25 kB LQFP-32 25 MHz 10 bit 29 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F310 Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU
Datasheet
2,475In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

8051 16 kB 1.25 kB QFN-28 25 MHz 10 bit 25 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F311 Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 8-bit MCU
Datasheet
1,218In Stock
Min.: 1
Mult.: 1
Reel: 1,500

8051 8 kB 1.25 kB QFN-24 25 MHz 10 bit 25 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F313 Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
2,439In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

8051 32 kB 2.25 kB QFN-28 50 MHz 12 bit 20 I/O 2 V 5.25 V SMD/SMT 8 bit - 40 C + 85 C C8051F411 Reel, Cut Tape, MouseReel