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8051 Core Semiconductors

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Core = 8051

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Part #

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

C8051F125-GQ
Silicon Labs
1: $59.39
491In Stock
800Expected 2026-04-17
NRND

Mfr. Part #
C8051F125-GQ

Mouser Part #
634-C8051F125-GQ

NRND

Silicon Labs

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

Datasheet

491In Stock

800Expected 2026-04-17

$59.39

$49.78

$46.94

$42.77

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Min.: 1
Mult.: 1

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

C8051F131-GQ
Silicon Labs
1: $49.23
438In Stock
NRND

Mfr. Part #
C8051F131-GQ

Mouser Part #
634-C8051F131-GQ

NRND

Silicon Labs

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

Datasheet

438In Stock

$49.23

$41.15

$38.73

$35.14

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Min.: 1
Mult.: 1

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

C8051F580-IQ
Silicon Labs
1: $22.36
3,821In Stock

Mfr. Part #
C8051F580-IQ

Mouser Part #
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

$22.36

$18.56

$17.33

$15.87

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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: $22.36
5,327In Stock

Mfr. Part #
C8051F580-IQR

Mouser Part #
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

$22.36

$18.56

$17.33

$15.87

Reel

$14.64

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MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

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

DS87C520-MNL+
Analog Devices / Maxim Integrated
1: $128.34
304In Stock

Mfr. Part #
DS87C520-MNL+

Mouser Part #
700-DS87C520-MNL

Analog Devices / Maxim Integrated

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

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Datasheet

304In Stock

$128.34

$106.68

$101.54

$95.34

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Min.: 1
Mult.: 1

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

DS87C520-QCL+
Analog Devices / Maxim Integrated
1: $103.61
299In Stock

Mfr. Part #
DS87C520-QCL+

Mouser Part #
700-DS87C520-QCL

Analog Devices / Maxim Integrated

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

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Datasheet

299In Stock

$103.61

$85.44

$81.25

$75.91

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Min.: 1
Mult.: 1

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

DS87C520-QNL+
Analog Devices / Maxim Integrated
1: $120.42
1,206In Stock

Mfr. Part #
DS87C520-QNL+

Mouser Part #
700-DS87C520-QNL

Analog Devices / Maxim Integrated

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

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Datasheet

1,206In Stock

$120.42

$100.08

$95.26

$89.46

Quote

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU

C8051F342-GQ
Silicon Labs
1: $31.44
877In Stock
End of Life

Mfr. Part #
C8051F342-GQ

Mouser Part #
634-C8051F342-GQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU

Learn More

Datasheet

877In Stock

$31.44

$26.14

$24.50

$22.53

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Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU

C8051F503-IQ
Silicon Labs
1: $15.93
1,559In Stock
End of Life

Mfr. Part #
C8051F503-IQ

Mouser Part #
634-C8051F503-IQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU

Datasheet

1,559In Stock

$15.93

$13.20

$12.31

$11.21

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Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU

C8051F506-IQ
Silicon Labs
1: $15.78
1,717In Stock
End of Life

Mfr. Part #
C8051F506-IQ

Mouser Part #
634-C8051F506-IQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU

Datasheet

1,717In Stock

$15.78

$13.09

$12.20

$11.11

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Min.: 1
Mult.: 1

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

AT89C51IC2T-RLTUM
Microchip Technology
1: $12.85
180In Stock

Mfr. Part #
AT89C51IC2T-RLTUM

Mouser Part #
556-AT89C51IC2TLTUM

Microchip Technology

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

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Datasheet

180In Stock

$12.85

$11.77

$10.68

Min.: 1
Mult.: 1

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

AT89C51RB2T-RLRUL
Microchip Technology
1: $11.93
2,000In Stock

Mfr. Part #
AT89C51RB2T-RLRUL

Mouser Part #
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

$11.93

$10.94

$9.90

Reel

$9.90

Min.: 1
Mult.: 1

Reel: 2,000

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

CC2430ZF128RTCR
Texas Instruments
1: $25.28
878In Stock
NRND

Mfr. Part #
CC2430ZF128RTCR

Mouser Part #
595-CC2430ZF128RTCR

NRND

Texas Instruments

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

Datasheet

878In Stock

Cut Tape

$25.28

$22.01

$20.88

$19.31

View

Reel

$16.33

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: $2.21
2,066In Stock

Mfr. Part #
AT89C2051-24SU

Mouser Part #
556-A89C2051-24SU

Microchip Technology

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

Datasheet

2,066In Stock

$2.21

$2.04

$1.84

Min.: 1
Mult.: 1

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

AT89C51AC2-SLSUM
Microchip Technology
1: $15.83
177In Stock

Mfr. Part #
AT89C51AC2-SLSUM

Mouser Part #
556-A89C51AC2SLSUM

Microchip Technology

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

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Datasheet

177In Stock

$15.83

$14.51

$13.14

Min.: 1
Mult.: 1

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

AT89C51CC01UA-SLSUM
Microchip Technology
1: $14.69
1,167In Stock

Mfr. Part #
AT89C51CC01UA-SLSUM

Mouser Part #
556-A89C51C01UASLSUM

Microchip Technology

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

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Datasheet

1,167In Stock

$14.69

$13.43

$12.19

Min.: 1
Mult.: 1

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

AT89C51CC03UA-RDTUM
Microchip Technology
1: $16.44
738In Stock

Mfr. Part #
AT89C51CC03UA-RDTUM

Mouser Part #
556-A89C51C03UARDTUM

Microchip Technology

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

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Datasheet

738In Stock

$16.44

$15.07

$13.63

Min.: 1
Mult.: 1

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

AT89C51ED2-SLSUM
Microchip Technology
1: $15.83
675In Stock

Mfr. Part #
AT89C51ED2-SLSUM

Mouser Part #
556-A89C51ED2SLSUM

Microchip Technology

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

Learn More

Datasheet

675In Stock

$15.83

$14.51

$13.14

Min.: 1
Mult.: 1

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

AT89C51ED2-SMSUM
Microchip Technology
1: $16.82
1,069In Stock

Mfr. Part #
AT89C51ED2-SMSUM

Mouser Part #
556-A89C51ED2SMSUM

Microchip Technology

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

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Datasheet

1,069In Stock

$16.82

$15.41

$13.97

Min.: 1
Mult.: 1

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

AT89C51RB2-SLSUM
Microchip Technology
1: $11.53
1,944In Stock

Mfr. Part #
AT89C51RB2-SLSUM

Mouser Part #
556-A89C51RB2SLSUM

Microchip Technology

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

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Datasheet

1,944In Stock

$11.53

$10.58

$9.59

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V

AT89C51RC-24PU
Microchip Technology
1: $7.94
795In Stock

Mfr. Part #
AT89C51RC-24PU

Mouser Part #
556-A89C51RC-24PU

Microchip Technology

8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V

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Datasheet

795In Stock

$7.94

$7.29

$7.17

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V

AT89C51RC2-3CSUM
Microchip Technology
1: $14.46
512In Stock

Mfr. Part #
AT89C51RC2-3CSUM

Mouser Part #
556-A89C51RC2-3CSUM

Microchip Technology

8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V

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Datasheet

512In Stock

$14.46

$13.28

$12.02

Min.: 1
Mult.: 1

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

AT89C51RD2-SLSUM
Microchip Technology
1: $13.83
1,723In Stock

Mfr. Part #
AT89C51RD2-SLSUM

Mouser Part #
556-A89C51RD2SLSUM

Microchip Technology

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

Learn More

Datasheet

1,723In Stock

$13.83

$12.69

$11.50

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V

AT89LP4052-20SU
Microchip Technology
1: $3.78
707In Stock
1,665Expected 2026-03-10

Mfr. Part #
AT89LP4052-20SU

Mouser Part #
556-A89LP4052-20SU

Microchip Technology

8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V

Datasheet

707In Stock

1,665Expected 2026-03-10

$3.78

$3.45

$3.12

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 4kB Flash 128B RAM 33MHz 4.0V-5.5V

AT89S51-24JU
Microchip Technology
1: $7.32
414In Stock

Mfr. Part #
AT89S51-24JU

Mouser Part #
556-A89S51-24JU

Microchip Technology

8-bit Microcontrollers - MCU 4kB Flash 128B RAM 33MHz 4.0V-5.5V

Datasheet

414In Stock

$7.32

$6.69

$6.59

Min.: 1
Mult.: 1

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