8051 Core Microcontrollers - MCU

Types of Microcontrollers - MCU
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Qty. RoHS Mounting Style
Package/Case
Core
Data Bus Width
Maximum Clock Frequency
Program Memory Size
Data RAM Size
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Maximum Operating Temperature
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Packaging
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU
Datasheet
1,592In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 8 bit 50 MHz 16 kB 1 kB 10 bit 21 I/O 1.8 V 3.6 V + 105 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU
Datasheet
1,755In Stock
1,911Expected 02/11/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-20 8051 8 bit 50 MHz 16 kB 1 kB 10 bit 17 I/O 1.8 V 3.6 V + 105 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
Datasheet
548In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 50 MHz 64 kB 4.25 kB 12 bit 25 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32
Datasheet
301In Stock
Min.: 1
Mult.: 1
: 1,500

8051 8 bit 1.8 V 5.25 V Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU
Datasheet
514In Stock
1,911Expected 01/09/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 8 bit 50 MHz 32 kB 2.25 kB 12 bit 18 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 8 bit 50 MHz 32 kB 2.25 kB 12 bit 18 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
449In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 8051 8 bit 50 MHz 32 kB 4 kB 12 bit 29 I/O 1.71 V 5.5 V + 85 C Tray

Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
663In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-68 8051 8 bit 50 MHz 32 kB 4 kB 12 bit 46 I/O 1.71 V 5.5 V + 85 C Tray
Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
371In Stock
Min.: 1
Mult.: 1

SMD/SMT SSOP-48 8051 8 bit 50 MHz 64 kB 8 kB 12 bit 31 I/O 1.71 V 5.5 V + 85 C Tube

Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V
Datasheet
147In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-68 8051 8 bit 67 MHz 64 kB 8 kB 12 bit 28 I/O 1.71 V 1.89 V + 85 C Tray

Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz
Datasheet
1,122In 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 64K Flash 67MHz 8051 0.5V to 5.5V
Datasheet
297In Stock
Min.: 1
Mult.: 1

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 Tray
Infineon Technologies 8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB
Datasheet
559In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V
Datasheet
237In Stock
Min.: 1
Mult.: 1

SMD/SMT SSOP-48 8051 8 bit 67 MHz 64 kB 8 kB 20 bit 29 I/O 1.71 V 1.89 V + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 64KB,16ADC,CAN,64Pin MCU
Datasheet
2,969In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 8 bit 25 MHz 64 kB 4.25 kB 10 bit, 2 x 16 bit 24 I/O 2.7 V 3.6 V + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU
Datasheet
471In Stock
Min.: 1
Mult.: 1
: 250

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

Silicon Labs 8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU
Datasheet
614In 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 50 MHz 64 kB 5 V 8-bit MCU
Datasheet
600In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 8051 8 bit 50 MHz 64 kB 4.25 kB 12 bit 40 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU
Datasheet
5,023In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 50 MHz 128 kB 8.25 kB 12 bit 25 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube

Lumissil 8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm)
Datasheet
2,450In Stock
Min.: 1
Mult.: 1
: 2,500

SMD/SMT WQFN-24 8051 8 bit 25 MHz 32 KB 2 KB 20 I/O 2.5 V 5.5 V + 125 C Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB 8-bit MCU
Datasheet
375In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-16 8051 8 bit 25 MHz 8 kB 512 B 12 bit 13 I/O 2.2 V 3.6 V + 85 C AEC-Q100 Tube

Microchip Technology 8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V
Datasheet
1,413In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-20 8051 8 bit 24 MHz 2 kB 128 B No ADC 15 I/O 4 V 6 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V
Datasheet
951In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-20 8051 8 bit 12 MHz 2 kB 128 B No ADC 15 I/O 2.7 V 6 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND
Datasheet
1,539In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 40 MHz 32 kB 1.2 kB 10 bit 34 I/O 3 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 4K ISP FLASH 2.7 TO 5.5V - 24MHz
Datasheet
4,134In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 24 MHz 4 kB 128 B No ADC 32 I/O 4 V 5.5 V + 85 C Tray