8051 Core Embedded Processors & Controllers

Types of Embedded Processors & Controllers
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Core
Number of I/Os
Data Bus Width
ADC Resolution

Nuvoton 8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM
Datasheet
814In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 8051 18 I/O 8 bit 12 bit

Nuvoton 8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM
Datasheet
1.353In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 8051 30 I/O 8 bit 12 bit
Nuvoton 8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM
Datasheet
975In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-33 8051 30 I/O 8 bit 12 bit
Nuvoton 8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width
Datasheet
899In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-20 8051 18 I/O 8 bit 12 bit

Microchip Technology 8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V
Datasheet
671In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-20 8051 15 I/O 8 bit No ADC

Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT
Datasheet
97In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 36 I/O 8 bit 10 bit

Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT
Datasheet
134In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 36 I/O 8 bit 10 bit
Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind
Datasheet
77In Stock
140Expected 3/3/2026
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 32 I/O 8 bit No ADC

Microchip Technology 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V
Datasheet
136In Stock
Min.: 1
Mult.: 1
Reel: 500

SMD/SMT PLCC-44 8051 34 I/O 8 bit

Microchip Technology 8-bit Microcontrollers - MCU SINGLE CYCLE 2K FLASH 20MHZ 2.4-5.5V
Datasheet
265In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-20 8051 15 I/O 8 bit No ADC

Microchip Technology 8-bit Microcontrollers - MCU SINGLE CYC 4K FLASH -20MHZ 2.4-5.5V
Datasheet
73In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 8051 15 I/O 8 bit No ADC
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 40 I/O 8 bit 12 bit

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
Datasheet
46In Stock
1.250Expected 3/27/2026
Min.: 1
Mult.: 1

SMD/SMT QFP-32 8051 25 I/O 8 bit 12 bit

Microchip Technology 8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V
Datasheet
34In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-28 8051 18 I/O 8 bit No ADC
Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT
Datasheet
4In Stock
Min.: 1
Mult.: 1

SMD/SMT VQFP-64 8051 36 I/O 8 bit 10 bit

Microchip Technology 8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V
Datasheet
4In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 32 I/O 8 bit No ADC
Silicon Labs 8-bit Microcontrollers - MCU USB-Flash-64k-ADC-QFN32 OTP available (T626-GM)
Datasheet
90In Stock
Min.: 1
Mult.: 1
Reel: 1.500

SMD/SMT QFN-32 8051 25 I/O 8 bit 10 bit
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
39In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 25 I/O 8 bit 10 bit
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU
Datasheet
178In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 21 I/O 8 bit 10 bit
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU
Datasheet
6In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 25 I/O 8 bit 12 bit
Silicon Labs 8-bit Microcontrollers - MCU 8051 MHz 16 kB flash industrial 8-bit MCU
Datasheet
6In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 25 I/O 8 bit 12 bit

Silicon Labs 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32
Datasheet
63In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 24 I/O 8 bit 10 bit
Analog Devices / Maxim Integrated Microprocessors - MPU 128k Soft Microprocessor Chip
Datasheet
11In Stock
Min.: 1
Mult.: 1

SMD/SMT MQFP-80 8051 32 I/O 8 bit
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers
Datasheet
12In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 32 I/O 8 bit No ADC

Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
8In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-68 8051 46 I/O 8 bit 12 bit