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8051 Core Embedded Processors & Controllers

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Types of Embedded Processors & Controllers

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Results: 572

Applied Filters:

Core = 8051

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Part #

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

C8051F581-IQ
Silicon Labs
1: $19.32
15In Stock
End of Life

Mfr. Part No.
C8051F581-IQ

Mouser Part No
634-C8051F581-IQ

End of Life

Silicon Labs

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

Learn More

Datasheet

15In Stock

$19.32

$16.03

$14.97

$13.69

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-48

8051

40 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

C8051F931-G-GM
Silicon Labs
1: $6.52
331In Stock
End of Life

Mfr. Part No.
C8051F931-G-GM

Mouser Part No
634-C8051F931-G-GM

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

Learn More

Datasheet

331In Stock

$6.52

$5.42

$4.57

$4.36

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-24

8051

16 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

C8051F931-G-GMR
Silicon Labs
1: $6.52
99In Stock
End of Life

Mfr. Part No.
C8051F931-G-GMR

Mouser Part No
634-C8051F931-G-GMR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

Learn More

Datasheet

99In Stock

Cut Tape

$6.52

$5.42

$5.05

$4.55

Reel

$3.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

8051

16 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU C51 16K Flash ADC

AT89C5115-RATUM
Microchip Technology
1: $12.79
97In Stock

Mfr. Part No.
AT89C5115-RATUM

Mouser Part No
556-A89C5115RATUM

Microchip Technology

8-bit Microcontrollers - MCU C51 16K Flash ADC

Learn More

Datasheet

97In Stock

$12.79

Min.: 1
Mult.: 1

SMD/SMT

VQFP-32

8051

20 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V

AT89C5131A-TISUL
Microchip Technology
1: $14.69
31In Stock

Mfr. Part No.
AT89C5131A-TISUL

Mouser Part No
556-A89C5131ATISUL

Microchip Technology

8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V

Datasheet

31In Stock

$14.69

Min.: 1
Mult.: 1

SMD/SMT

SOIC-28

8051

18 I/O

8 bit

No ADC

8-bit Microcontrollers - MCU CTRL Boodloader UART

AT89C51CC02UA-TISUM
Microchip Technology
1: $11.36
54In Stock

Mfr. Part No.
AT89C51CC02UA-TISUM

Mouser Part No
556-A89C51C02UATISUM

Microchip Technology

8-bit Microcontrollers - MCU CTRL Boodloader UART

Learn More

Datasheet

54In Stock

$11.36

Min.: 1
Mult.: 1

SMD/SMT

SOIC-28

8051

20 I/O

8 bit

10 bit

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

AT89C51RC2-SLSUL
Microchip Technology
1: $13.44
4In Stock

Mfr. Part No.
AT89C51RC2-SLSUL

Mouser Part No
556-A89C51RC2SLSUL

Microchip Technology

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

Learn More

Datasheet

4In Stock

$13.44

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

32 I/O

8 bit

No ADC

8-bit Microcontrollers - MCU 8Bit MCU Low Power

AT89C55WD-24AUR
Microchip Technology
1: $4.82
459In Stock

Mfr. Part No.
AT89C55WD-24AUR

Mouser Part No
556-AT89C55WD-24AUR

Microchip Technology

8-bit Microcontrollers - MCU 8Bit MCU Low Power

Datasheet

459In Stock

Cut Tape

$4.82

$4.42

$4.34

Reel

$4.34

Quote

Min.: 1
Mult.: 1

: 2,000

SMD/SMT

TQFP-44

8051

32 I/O

8 bit

No ADC

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

C8051F301-GM
Silicon Labs
1: $9.63
12In Stock

Mfr. Part No.
C8051F301-GM

Mouser Part No
634-C8051F301-GM

Silicon Labs

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

Datasheet

12In Stock

$9.63

$7.69

$7.23

$6.39

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-11

8051

8 I/O

8 bit

No ADC

8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V

CY8C3446LTI-073
Infineon Technologies
1: $19.88
2,600Expected 17/6/2026

Mfr. Part No.
CY8C3446LTI-073

Mouser Part No
727-CY8C3446LTI-073

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

2,600Expected 17/6/2026

$19.88

$15.85

$14.78

$13.62

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

8051

31 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V

AT89LP51ID2-20AU
Microchip Technology
1: $8.38
440Expected 13/8/2026

Mfr. Part No.
AT89LP51ID2-20AU

Mouser Part No
556-AT89LP51ID2-20AU

Microchip Technology

8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V

Learn More

Datasheet

440Expected 13/8/2026

$8.38

Min.: 1
Mult.: 1

SMD/SMT

TQFP-44

8051

40 I/O

8 bit

10 bit

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

C8051F021-GQR
Silicon Labs
1: $50.46
399Expected 9/6/2026

Mfr. Part No.
C8051F021-GQR

Mouser Part No
634-C8051F021-GQR

Silicon Labs

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

Datasheet

399Expected 9/6/2026

Cut Tape

$50.46

$42.26

$39.82

$36.99

$35.60

Reel

$34.74

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

TQFP-64

8051

32 I/O

8 bit

8 bit, 12 bit

8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU

C8051F351-GM
Silicon Labs
1: $22.96
1,528Expected 18/8/2026

Mfr. Part No.
C8051F351-GM

Mouser Part No
634-C8051F351-GM

Silicon Labs

8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU

Datasheet

1,528Expected 18/8/2026

$22.96

$17.44

$16.72

$14.73

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-28

8051

17 I/O

8 bit

24 bit

8-bit Microcontrollers - MCU 32KB,12ADC,48Pin MCU

C8051F006-GQ
Silicon Labs
1: $38.91
1,101Expected 11/9/2026
End of Life

Mfr. Part No.
C8051F006-GQ

Mouser Part No
634-C8051F006-GQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 32KB,12ADC,48Pin MCU

Datasheet

1,101Expected 11/9/2026

$38.91

$32.46

$30.51

$28.22

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-48

8051

16 I/O

8 bit

12 bit

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

C8051F121-GQ
Silicon Labs
1: $60.85
1,305On Order
End of Life

Mfr. Part No.
C8051F121-GQ

Mouser Part No
634-C8051F121-GQ

End of Life

Silicon Labs

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

Datasheet

1,305On Order

$60.85

$51.11

$48.26

$44.09

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

8051

32 I/O

8 bit

8 bit, 12 bit

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

C8051F125-GQ
Silicon Labs
1: $53.78
800Expected 23/7/2026
End of Life

Mfr. Part No.
C8051F125-GQ

Mouser Part No
634-C8051F125-GQ

End of Life

Silicon Labs

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

Datasheet

800Expected 23/7/2026

$53.78

$45.08

$42.51

$38.73

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

8051

32 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU

C8051F336-GMR
Silicon Labs
1: $15.12
1,458Expected 6/8/2026

Mfr. Part No.
C8051F336-GMR

Mouser Part No
634-C8051F336-GMR

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU

Datasheet

1,458Expected 6/8/2026

Cut Tape

$15.12

$12.43

$11.58

$10.41

View

Reel

$8.52

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-20

8051

17 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB LFO 8-bit MCU

C8051F330-GM
Silicon Labs
1: $13.00
1,911Expected 23/10/2026
NRND

Mfr. Part No.
C8051F330-GM

Mouser Part No
634-C8051F330-GM

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB LFO 8-bit MCU

Datasheet

1,911Expected 23/10/2026

$13.00

$10.68

$9.04

$8.65

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

8051

17 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)

C8051F331-GMR
Silicon Labs
1: $14.76
1,500Expected 20/10/2026
NRND

Mfr. Part No.
C8051F331-GMR

Mouser Part No
634-C8051F331-GMR

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)

Datasheet

1,500Expected 20/10/2026

Cut Tape

$14.76

$11.41

$10.88

$9.45

View

Reel

$7.31

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-20

8051

17 I/O

8 bit

No ADC

8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 12MHZ 4V-5.5V

AT89C4051-12SU
Microchip Technology
1: $2.09
552On Order

Mfr. Part No.
AT89C4051-12SU

Mouser Part No
556-A89C405112SU

Microchip Technology

8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 12MHZ 4V-5.5V

Datasheet

552On Order

$2.09

Min.: 1
Mult.: 1

SMD/SMT

SOIC-20

8051

15 I/O

8 bit

No ADC

8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC

AT89S2051-24SU
Microchip Technology
1: $3.63
504Expected 16/6/2026

Mfr. Part No.
AT89S2051-24SU

Mouser Part No
556-A89S2051-24SU

Microchip Technology

8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC

Datasheet

504Expected 16/6/2026

$3.63

Min.: 1
Mult.: 1

SMD/SMT

SOIC-20

8051

15 I/O

8 bit

No ADC

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

C8051F040-GQ
Silicon Labs
1: $35.07
119Expected 3/7/2026
End of Life

Mfr. Part No.
C8051F040-GQ

Mouser Part No
634-C8051F040-GQ

End of Life

Silicon Labs

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

Datasheet

119Expected 3/7/2026

$35.07

$30.59

$27.65

$27.02

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

64 I/O

8 bit

8 bit, 12 bit

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU

C8051F531-C-IT
Silicon Labs
1: $8.74
1,551Expected 23/10/2026
End of Life

Mfr. Part No.
C8051F531-C-IT

Mouser Part No
634-C8051F531-C-IT

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU

Datasheet

1,551Expected 23/10/2026

$8.74

$7.26

$6.23

$5.95

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

8051

16 I/O

8 bit

12 bit

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

AT89LP4052-20XU
Microchip Technology
1: $3.89
294Expected 6/8/2026

Mfr. Part No.
AT89LP4052-20XU

Mouser Part No
556-A89LP4052-20XU

Microchip Technology

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

Datasheet

294Expected 6/8/2026

$3.89

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

8051

15 I/O

8 bit

No ADC

8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V

AT89C51AC3-RDTUM
Microchip Technology
160: $14.19
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
AT89C51AC3-RDTUM

Mouser Part No
556-A89C51AC3RDTUM

Microchip Technology

8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$14.19

Min.: 160
Mult.: 160

SMD/SMT

VQFP-64

8051

36 I/O

8 bit

10 bit

8051 Core Embedded Processors & Controllers

Types of Embedded Processors & Controllers

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LQFP-32
LQFP-44
LQFP-48
LQFP-64
MQFP-80
MSOP-10
PDIP-20
PDIP-40
PLCC-28
PLCC-44
PLCC-68
PQFP-44
PQFP-48
QFN-11
QFN-20
QFN-24
QFN-28
QFN-32
QFN-33
QFN-40

4 I/O
6 I/O
7 I/O
8 I/O
11 I/O
12 I/O
13 I/O
15 I/O
16 I/O
17 I/O
18 I/O
20 I/O
21 I/O
24 I/O
25 I/O
26 I/O
28 I/O
29 I/O
30 I/O
31 I/O