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8051 Core Semiconductors

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Core = 8051

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Part #

8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz

CY8C3666LTI-203
Infineon Technologies
1: $18.40
2,835In Stock

Mfr. Part No.
CY8C3666LTI-203

Mouser Part No
727-CY8C3666LTI-203

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz

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Datasheet

2,835In Stock

$18.40

$14.58

$13.62

$12.57

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Mult.: 1

8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB

CY8C3866AXI-040T
Infineon Technologies
1: $34.62
851In Stock

Mfr. Part No.
CY8C3866AXI-040T

Mouser Part No
727-CY8C3866AXI-040T

Infineon Technologies

8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB

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Datasheet

851In Stock

Cut Tape

$34.62

$27.84

$26.15

$24.27

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Reel

$22.17

MouseReel Available

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Reel: 1,500

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

C8051F043-GQ
Silicon Labs
1: $32.08
1,062In Stock
NRND

Mfr. Part No.
C8051F043-GQ

Mouser Part No
634-C8051F043-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

Datasheet

1,062In Stock

$32.08

$26.70

$25.05

$22.57

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8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

C8051F045-GQ
Silicon Labs
1: $26.20
778In Stock
NRND

Mfr. Part No.
C8051F045-GQ

Mouser Part No
634-C8051F045-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

Datasheet

778In Stock

$26.20

$21.78

$20.39

$18.29

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8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

C8051F060-GQ
Silicon Labs
1: $51.17
751In Stock
NRND

Mfr. Part No.
C8051F060-GQ

Mouser Part No
634-C8051F060-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

Datasheet

751In Stock

$51.17

$42.85

$37.71

$36.58

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Mult.: 1

8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU

C8051F124-GQ
Silicon Labs
1: $55.66
1,280In Stock
NRND

Mfr. Part No.
C8051F124-GQ

Mouser Part No
634-C8051F124-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU

Datasheet

1,280In Stock

$55.66

$46.68

$41.16

$39.96

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8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU

C8051F125-GQ
Silicon Labs
1: $53.78
494In Stock
800Expected 17/4/2026
NRND

Mfr. Part No.
C8051F125-GQ

Mouser Part No
634-C8051F125-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU

Datasheet

494In Stock

800Expected 17/4/2026

$53.78

$45.08

$42.51

$38.73

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8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU

C8051F131-GQ
Silicon Labs
1: $44.58
438In Stock
NRND

Mfr. Part No.
C8051F131-GQ

Mouser Part No
634-C8051F131-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU

Datasheet

438In Stock

$44.58

$37.27

$35.07

$31.82

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Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 64KB,10ADC,100Pin MCU

C8051F022-GQ
Silicon Labs
1: $42.34
626In Stock

Mfr. Part No.
C8051F022-GQ

Mouser Part No
634-C8051F022-GQ

Silicon Labs

8-bit Microcontrollers - MCU 64KB,10ADC,100Pin MCU

Datasheet

626In Stock

$42.34

$35.38

$30.97

$30.01

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8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU

C8051F580-IQ
Silicon Labs
1: $20.25
3,821In Stock

Mfr. Part No.
C8051F580-IQ

Mouser Part No
634-C8051F580-IQ

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU

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Datasheet

3,821In Stock

$20.25

$16.81

$15.69

$14.37

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Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, CAN2.0, LIN 2.1, SPI, 2xUART, I2C, QFP48

C8051F580-IQR
Silicon Labs
1: $20.25
5,327In Stock

Mfr. Part No.
C8051F580-IQR

Mouser Part No
634-C8051F580-IQR

Silicon Labs

8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, CAN2.0, LIN 2.1, SPI, 2xUART, I2C, QFP48

Datasheet

5,327In Stock

Cut Tape

$20.25

$16.81

$15.69

$14.37

Reel

$13.26

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Reel: 500

8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers

DS87C520-MNL+
Analog Devices / Maxim Integrated
1: $116.22
304In Stock

Mfr. Part No.
DS87C520-MNL+

Mouser Part No
700-DS87C520-MNL

Analog Devices / Maxim Integrated

8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers

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Datasheet

304In Stock

$116.22

$96.61

$91.95

$86.33

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Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers

DS87C520-QCL+
Analog Devices / Maxim Integrated
1: $93.83
299In Stock

Mfr. Part No.
DS87C520-QCL+

Mouser Part No
700-DS87C520-QCL

Analog Devices / Maxim Integrated

8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers

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Datasheet

299In Stock

$93.83

$77.37

$73.57

$68.74

Quote

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers

DS87C520-QNL+
Analog Devices / Maxim Integrated
1: $109.05
1,216In Stock

Mfr. Part No.
DS87C520-QNL+

Mouser Part No
700-DS87C520-QNL

Analog Devices / Maxim Integrated

8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers

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Datasheet

1,216In Stock

$109.05

$90.63

$86.26

$81.01

Quote

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU C51IC2 32Kf I2C 32KHz TQFP44 I. 5V GREEN

AT89C51IC2T-RLTUM
Microchip Technology
1: $11.63
180In Stock

Mfr. Part No.
AT89C51IC2T-RLTUM

Mouser Part No
556-AT89C51IC2TLTUM

Microchip Technology

8-bit Microcontrollers - MCU C51IC2 32Kf I2C 32KHz TQFP44 I. 5V GREEN

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Datasheet

180In Stock

$11.63

$10.66

$9.67

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN

AT89C51RB2T-RLRUL
Microchip Technology
1: $10.80
2,000In Stock

Mfr. Part No.
AT89C51RB2T-RLRUL

Mouser Part No
556-AT89C51RB2TLRUL

Microchip Technology

8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN

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Datasheet

2,000In Stock

Cut Tape

$10.80

$9.91

$8.97

Reel

$8.97

Min.: 1
Mult.: 1

Reel: 2,000

Development Boards & Kits - 8051 EFM8BB50 Explorer Kit

BB50-EK2702A
Silicon Labs
1: $42.14
5In Stock

Mfr. Part No.
BB50-EK2702A

Mouser Part No
634-BB50-EK2702A

Silicon Labs

Development Boards & Kits - 8051 EFM8BB50 Explorer Kit

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Datasheet

5In Stock

$42.14

Min.: 1
Mult.: 1

RF System on a Chip - SoC Sys-on-Chip Solution Transient Response A 839-CC2430-F128-RV-B

CC2430ZF128RTCR
Texas Instruments
1: $22.89
903In Stock
NRND

Mfr. Part No.
CC2430ZF128RTCR

Mouser Part No
595-CC2430ZF128RTCR

NRND

Texas Instruments

RF System on a Chip - SoC Sys-on-Chip Solution Transient Response A 839-CC2430-F128-RV-B

Datasheet

903In Stock

Cut Tape

$22.89

$19.93

$18.90

$17.49

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Reel

$14.79

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-24MHZ 4-5.5V

AT89C2051-24SU
Microchip Technology
1: $2.00
3,181In Stock

Mfr. Part No.
AT89C2051-24SU

Mouser Part No
556-A89C2051-24SU

Microchip Technology

8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-24MHZ 4-5.5V

Datasheet

3,181In Stock

$2.00

$1.85

$1.67

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU C51AC2 32K FLASHADC EEP 5V

AT89C51AC2-SLSUM
Microchip Technology
1: $14.33
177In Stock

Mfr. Part No.
AT89C51AC2-SLSUM

Mouser Part No
556-A89C51AC2SLSUM

Microchip Technology

8-bit Microcontrollers - MCU C51AC2 32K FLASHADC EEP 5V

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Datasheet

177In Stock

$14.33

$13.14

$11.90

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND

AT89C51CC01UA-SLSUM
Microchip Technology
1: $13.30
1,167In Stock

Mfr. Part No.
AT89C51CC01UA-SLSUM

Mouser Part No
556-A89C51C01UASLSUM

Microchip Technology

8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND

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Datasheet

1,167In Stock

$13.30

$12.16

$11.04

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT

AT89C51CC03UA-RDTUM
Microchip Technology
1: $14.89
738In Stock

Mfr. Part No.
AT89C51CC03UA-RDTUM

Mouser Part No
556-A89C51C03UARDTUM

Microchip Technology

8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT

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Datasheet

738In Stock

$14.89

$13.65

$12.34

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V

AT89C51ED2-SLSUM
Microchip Technology
1: $14.33
767In Stock

Mfr. Part No.
AT89C51ED2-SLSUM

Mouser Part No
556-A89C51ED2SLSUM

Microchip Technology

8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V

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Datasheet

767In Stock

$14.33

$13.14

$11.90

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind

AT89C51ED2-SMSUM
Microchip Technology
1: $15.23
1,069In Stock

Mfr. Part No.
AT89C51ED2-SMSUM

Mouser Part No
556-A89C51ED2SMSUM

Microchip Technology

8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind

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Datasheet

1,069In Stock

$15.23

$13.96

$12.65

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM

AT89C51RB2-SLSUM
Microchip Technology
1: $10.44
1,944In Stock

Mfr. Part No.
AT89C51RB2-SLSUM

Mouser Part No
556-A89C51RB2SLSUM

Microchip Technology

8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM

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Datasheet

1,944In Stock

$10.44

$9.58

$8.69

Min.: 1
Mult.: 1

8051 Core Semiconductors

Types of Semiconductors

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