8051 Core Microcontrollers - MCU

Types of Microcontrollers - MCU
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Core
Data Bus Width
Maximum Clock Frequency
Program Memory Size
Data RAM Size
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Number of I/Os
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Supply Voltage - Max
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Silicon Labs 8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU
Datasheet
817In Stock
Min.: 1
Mult.: 1

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

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU
Datasheet
2.359In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 8051 8 bit 25 MHz 16 kB 1.25 kB 10 bit 29 I/O 2.7 V 3.6 V + 85 C 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

SMD/SMT QFN-28 8051 8 bit 25 MHz 16 kB 1.25 kB 10 bit 25 I/O 2.7 V 3.6 V + 85 C 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

SMD/SMT QFN-24 8051 8 bit 25 MHz 8 kB 1.25 kB 10 bit 25 I/O 2.7 V 3.6 V + 85 C 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

SMD/SMT QFN-28 8051 8 bit 50 MHz 32 kB 2.25 kB 12 bit 20 I/O 2 V 5.25 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 64kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32
Datasheet
8.785In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 25 MHz 64 kB 4.25 kB 10 bit 24 I/O 1.8 V 3.6 V + 85 C Tube
Silicon Labs RF Microcontrollers - MCU RF+MCU 8051 25 MHz 16 kB +20 dBm
Datasheet
2.097In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-36 8051 8 bit 25 MHz 64 kB 4 kB 10 bit 11 I/O 1.8 V 3.6 V + 85 C Tray
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers
Datasheet
443In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 33 MHz 64 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tube

Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz
Datasheet
2.835In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-68 8051 8 bit 67 MHz 64 kB 8 kB 12 bit 46 I/O 1.71 V 1.89 V + 85 C Tray
Infineon Technologies 8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB
Datasheet
851In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

SMD/SMT TQFP-100 8051 8 bit 67 MHz 64 kB 8 kB 20 bit 72 I/O 1.71 V 1.89 V + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
Datasheet
1.062In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 8 bit 25 MHz 64 kB 4.25 kB 10 bit 32 I/O 2.7 V 3.6 V + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
Datasheet
778In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 8 bit 25 MHz 64 kB 4.25 kB 8 bit, 10 bit 32 I/O 2.7 V 3.6 V + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
Datasheet
751In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 8051 8 bit 25 MHz 64 kB 4.25 kB 16 bit 59 I/O 2.7 V 3.6 V + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU
Datasheet
1.280In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 8051 8 bit 50 MHz 128 kB 8.25 kB 8 bit, 12 bit 64 I/O 2.7 V 3.6 V + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU
Datasheet
494In Stock
800Expected 4/17/2026
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 8 bit 50 MHz 128 kB 8.25 kB 12 bit 32 I/O 2.7 V 3.6 V + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU
Datasheet
438In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 8 bit 100 MHz 128 kB 8.25 kB 10 bit 32 I/O 3 V 3.6 V + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 64KB,10ADC,100Pin MCU
Datasheet
626In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 8051 8 bit 25 MHz 64 kB 4.35 kB 8 bit, 10 bit 64 I/O 2.7 V 3.6 V + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU
Datasheet
3.821In Stock
Min.: 1
Mult.: 1

SMD/SMT PQFP-48 8051 8 bit 50 MHz 128 kB 8.25 kB 12 bit 40 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tray
Silicon Labs 8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, CAN2.0, LIN 2.1, SPI, 2xUART, I2C, QFP48
Datasheet
5.327In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

SMD/SMT TQFP-48 8051 8 bit 50 MHz 128 kB 8.25 kB 12 bit 40 I/O 1.8 V 5.25 V + 125 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU
Datasheet
274In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 8051 8 bit 50 MHz 128 kB 8.25 kB 12 bit 40 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers
Datasheet
304In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 33 MHz 16 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tube

Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers
Datasheet
299In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 33 MHz 16 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 70 C Tube

Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers
Datasheet
1.216In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 33 MHz 16 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU C51IC2 32Kf I2C 32KHz TQFP44 I. 5V GREEN
Datasheet
180In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 60 MHz 32 kB 1.25 kB No ADC 34 I/O 2.7 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN
Datasheet
2.000In Stock
Min.: 1
Mult.: 1
Reel: 2.000

SMD/SMT TQFP-44 8051 8 bit 60 MHz 16 kB 1.25 kB No ADC 32 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape