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
Qualification
Packaging
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU
Datasheet
422In Stock
Min.: 1
Mult.: 1
: 1.500

SMD/SMT QFN-28 8051 8 bit 50 MHz 16 kB 2.31 kB 12 bit 20 I/O 2 V 5.25 V + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU
Datasheet
257In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 48 MHz 64 kB 4.35 kB 25 I/O 2.7 V 5.25 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL
Datasheet
315In Stock
Min.: 1
Mult.: 1

SMD/SMT VQFN-44 8051 8 bit 20 MHz 32 kB 4.25 kB 10 bit 38 I/O 2.4 V 3.6 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU Sngle-Cycle 8051 32K ISP Flsh,2.4-5.5V
Datasheet
294In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-44 8051 8 bit 20 MHz 32 kB 256 B 10 bit 40 I/O 2.4 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Keybrd & Embedded Cntlr
Datasheet
231In Stock
Min.: 1
Mult.: 1

SMD/SMT VTQFP-128 8051 8 bit 32 MHz 64 kB 10 bit 56 I/O 3.3 V 3.3 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM
Datasheet
2.421In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 16 kB 1.25 kB No ADC 32 I/O 2.7 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 4.0V-5.5V
Datasheet
5.919In Stock
7.260Expected 9/29/2026
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 24 MHz 8 kB 256 B No ADC 32 I/O 4 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU C51ID2 64kF 32KHz TQFP44 3-5.5V I. GREEN
Datasheet
1.907In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 60 MHz 64 kB 2 kB No ADC 34 I/O 2.7 V 5.5 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
3.248In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 20 MHz 64 kB 256 B 10 bit 40 I/O 2.4 V 5.5 V + 85 C Tube
Silicon Labs RF Microcontrollers - MCU RF+MCU 8051 25 MHz 16 kB +20 dBm
Datasheet
2.404In 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
Infineon Technologies 8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 25 I/O
Datasheet
2.655In Stock
Min.: 1
Mult.: 1
: 2.000

SMD/SMT QFN-48 8051 8 bit Reel, Cut Tape
Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
2.600In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 8051 8 bit 50 MHz 64 kB 8 kB 12 bit 31 I/O 1.71 V 5.5 V + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU USB-Flash-64k-ADC-TQFP48
Datasheet
8.043In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

SMD/SMT TQFP-48 8051 8 bit 48 MHz 64 kB 4.25 kB 10 bit 40 I/O 2.7 V 5.25 V + 85 C Reel, Cut Tape, MouseReel

Lumissil 8-bit Microcontrollers - MCU MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm) 2.500In 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 + 85 C Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU C51AC2 32kF ADC EEP TQFP44 ind 5V GREEN
Datasheet
3.050In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 40 MHz 32 kB 128 B 10 bit 34 I/O 3 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-24MHZ 4-5.5V
Datasheet
2.559In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-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 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V
Datasheet
994In Stock
1.404Expected 10/16/2026
Min.: 1
Mult.: 1

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

Microchip Technology 8-bit Microcontrollers - MCU C51 16K Flash ADC
Datasheet
396In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-28 8051 8 bit 40 MHz 16 kB 512 B 10 bit 20 I/O 3 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V
Datasheet
166In Stock
Min.: 1
Mult.: 1

SMD/SMT VQFP-64 8051 8 bit 48 MHz 16 kB 1 kB No ADC 34 I/O 2.7 V 5.5 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V
Datasheet
267In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 64 kB 2 kB 10 bit 36 I/O 3 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT
Datasheet
421In Stock
Min.: 1
Mult.: 1

SMD/SMT VQFP-64 8051 8 bit 60 MHz 64 kB 2 kB 10 bit 36 I/O 3 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind
Datasheet
880In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-68 8051 8 bit 60 MHz 64 kB 2 kB No ADC 48 I/O 2.7 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V
Datasheet
397In Stock
690Expected 10/12/2026
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 24 MHz 32 kB 512 B No ADC 32 I/O 4 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V
Datasheet
303In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 60 MHz 32 kB 1.25 kB No ADC 32 I/O 2.7 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V
Datasheet
428In Stock
Min.: 1
Mult.: 1
: 500

SMD/SMT PLCC-44 8051 8 bit 60 MHz 64 kB 2 kB 34 I/O 2.7 V 5.5 V + 85 C Reel, Cut Tape