8051 Core Microcontrollers - MCU

Types of Microcontrollers - MCU
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Data Bus Width
Maximum Clock Frequency
Program Memory Size
Data RAM Size
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Supply Voltage - Max
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Nuvoton 8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM
Datasheet
1,353In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 8051 8 bit 24 MHz 32 kB 2 kB 12 bit 30 I/O 2.4 V 5.5 V + 105 C Tray
Nuvoton 8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM
Datasheet
975In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-33 8051 8 bit 24 MHz 32 kB 2 kB 12 bit 30 I/O 2.4 V 5.5 V + 105 C Tray
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 8 bit 24 MHz 16 kB 1 kB 12 bit 18 I/O 2.4 V 5.5 V + 105 C Tray

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 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 C51 64K FLASH CAN BOOT
Datasheet
97In 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
134In 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 C51RB2 FLASH 5V 16k ind
Datasheet
77In Stock
140Expected 2026/03/09
Min.: 1
Mult.: 1

Through Hole PDIP-40 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 C51RD2 64K FLASH 3-5.5V
Datasheet
136In Stock
Min.: 1
Mult.: 1
Reel: 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

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 8 bit 20 MHz 2 kB 256 B No ADC 15 I/O 2.4 V 5.5 V + 85 C Tube

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 8 bit 20 MHz 4 kB 256 B No ADC 15 I/O 2.4 V 5.5 V + 85 C Tube
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 8 bit 48 MHz 64 kB 4.25 kB 10 bit 25 I/O 2.7 V 5.25 V + 85 C Reel, Cut Tape
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 8 bit 50 MHz 32 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 8051 MHz 16 kB flash industrial 8-bit MCU
Datasheet
6In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 50 MHz 16 kB 1.25 kB 12 bit 25 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube

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 8 bit 25 MHz 32 kB 4.25 kB 10 bit 24 I/O 900 mV 3.6 V + 85 C Tube

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 8 bit 50 MHz 64 kB 8 kB 12 bit 46 I/O 1.71 V 5.5 V + 85 C Tray

Infineon Technologies 8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O
Datasheet
23In Stock
Min.: 1
Mult.: 1
Reel: 2,000

SMD/SMT QFN-68 8051 8 bit 50 MHz 64 kB 8 kB 12 bit 46 I/O 1.71 V 5.5 V + 85 C Reel, Cut Tape
Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
134In Stock
Min.: 1
Mult.: 1

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

Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
6In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-68 8051 8 bit 50 MHz 64 kB 8 kB 12 bit 48 I/O 1.71 V 5.5 V + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 25 MIPS, 8 kB, 256, SPI, UART, TSSOP20
Datasheet
52In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 8051 8 bit 25 MHz 8 kB 256 B 12 bit 16 I/O 1.8 V 5.25 V + 125 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN 8-bit MCU
Datasheet
83In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 8051 8 bit 50 MHz 32 kB 2.25 kB 12 bit 33 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 8-bit MCU
Datasheet
12In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-11 8051 8 bit 25 MHz 8 kB 256 B No ADC 8 I/O 2.7 V 3.6 V + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU
Datasheet
92In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 8 bit 25 MHz 16 kB 768 B 10 bit 21 I/O 2.7 V 3.6 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 8-Bit 16K+1K Flash 33MHz 3/16-Bit Timer
Datasheet
Product Comments
50In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 33 MHz 17 kB 512 B No ADC 32 I/O 4.5 V 5.5 V + 70 C Tube
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU
Datasheet
960Expected 2026/04/13
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 20 MHz 8 kB 256 B No ADC 36 I/O 2.4 V 5.5 V + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
Datasheet
1,250Expected 2026/02/27
Min.: 1
Mult.: 1

SMD/SMT QFP-32 8051 8 bit 50 MHz 32 kB 4.25 kB 12 bit 25 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tray