8051 Core 8-bit Microcontrollers - MCU

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
Package/Case
Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Mounting Style
Data Bus Width
Minimum Operating Temperature
Maximum Operating Temperature
Series
Qualification
Packaging
Microchip Technology 8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-2MHZ 4V-5.5V
Datasheet
110Expected 9/16/2026
Min.: 1
Mult.: 1

8051 2 kB 128 B SOIC-20 12 MHz No ADC 15 I/O 2.7 V 6 V SMD/SMT 8 bit - 40 C + 85 C 89C Tube
Microchip Technology 8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 12MHZ 4V-5.5V
Datasheet
552On Order
Min.: 1
Mult.: 1

8051 4 kB 128 B SOIC-20 12 MHz No ADC 15 I/O 2.7 V 6 V SMD/SMT 8 bit - 40 C + 85 C 89C Tube
Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind
Datasheet
120Expected 11/2/2026
Min.: 1
Mult.: 1

8051 16 kB 1.25 kB PDIP-40 60 MHz No ADC 32 I/O 2.7 V 5.5 V Through Hole 8 bit - 40 C + 85 C 89C Tube
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
140Expected 9/10/2026
Min.: 1
Mult.: 1

8051 64 kB 256 B PDIP-40 20 MHz 10 bit 40 I/O 2.4 V 5.5 V Through Hole 8 bit - 40 C + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU
Datasheet
130Expected 9/16/2026
Min.: 1
Mult.: 1

8051 8 kB 256 B PLCC-44 20 MHz No ADC 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 32KB,12ADC,48Pin MCU
Datasheet
114Expected 4/30/2027
Min.: 1
Mult.: 1

8051 32 kB 2.25 kB TQFP-48 25 MHz 12 bit 16 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F006 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
Datasheet
425Expected 10/30/2026
Min.: 1
Mult.: 1

8051 64 kB 4.25 kB TQFP-100 25 MHz 8 bit, 12 bit 64 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F040 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)
Datasheet
1.500Expected 10/16/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

8051 8 kB 768 B QFN-20 25 MHz No ADC 17 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F331 Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
Datasheet
832Expected 7/16/2027
Min.: 1
Mult.: 1

8051 32 kB 4.25 kB QFP-48 50 MHz 12 bit 40 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F505 AEC-Q100 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU
Datasheet
1.551Expected 1/1/2027
Min.: 1
Mult.: 1

8051 8 kB 256 B TSSOP-20 25 MHz 12 bit 16 I/O 2 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F531 AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU
Datasheet
810Expected 1/29/2027
Min.: 1
Mult.: 1

8051 128 kB 8.25 kB QFN-48 24 MHz 12 bit 40 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F580 AEC-Q100 Tube

Nuvoton 8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051
Datasheet
499Expected 10/21/2027
Min.: 1
Mult.: 1

8051 16 kB 2 kB LQFP-32 24 MHz 12 bit 28 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C Tray
Nuvoton 8-bit Microcontrollers - MCU 32KB Flash ROM, 2KB SRAM, 2 CHs of SPI,1T/8051
Datasheet
490Expected 6/29/2027
Min.: 1
Mult.: 1

8051 32 kB 2 kB QFN-33 24 MHz 12 bit 28 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

8051 64 kB 2 kB VQFP-64 60 MHz 10 bit 36 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tray
Microchip Technology 8-bit Microcontrollers - MCU LPC/CAN/C51 BootUA IND
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 250
Mult.: 250

8051 16 kB 512 B VQFP-32 40 MHz 20 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tray
Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

8051 64 kB 2 kB VQFP-64 60 MHz 10 bit 36 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1.500
Mult.: 1.500
: 1.500

8051 64 kB 2 kB LQFP-64 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit Reel
Microchip Technology 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 160
Mult.: 160

8051 64 kB 2 kB VQFP-64 60 MHz No ADC 50 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tray

Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 500
Mult.: 500
: 500

8051 64 kB 2 kB PLCC-44 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit Reel

Microchip Technology 8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 3V
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 500
Mult.: 500
: 500

8051 32 kB 1.25 kB PLCC-44 60 MHz No ADC 34 I/O 2.7 V 5.5 V SMD/SMT 8 bit Reel

Microchip Technology 8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 500
Mult.: 500
: 500

8051 32 kB 1.25 kB PLCC-44 60 MHz No ADC 34 I/O 2.7 V 5.5 V SMD/SMT 8 bit Reel

Microchip Technology 8-bit Microcontrollers - MCU C51ID2 64K FLASH TWI 32KHz 5V
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 500
Mult.: 500
: 500

8051 64 kB 2 kB PLCC-44 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit Reel

Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 3V 16k Ind
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 500
Mult.: 500
: 500

8051 16 kB 1.25 kB PLCC-44 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit Reel

Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 500
Mult.: 500
: 500

8051 16 kB 1.25 kB PLCC-44 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit Reel

Microchip Technology 8-bit Microcontrollers - MCU C51RC2 32K FLASH 3V Ind
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 500
Mult.: 500
: 500

8051 32 kB 1.25 kB PLCC-44 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit Reel