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8051 Core 8 bit Embedded Processors & Controllers

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Types of Embedded Processors & Controllers

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Results: 551

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Core = 8051 Data Bus Width = 8 bit

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Part #

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

C8051F353-GM
Silicon Labs
1: $15.31
766In Stock

Mfr. Part #
C8051F353-GM

Mouser Part #
634-C8051F353-GM

Silicon Labs

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

Datasheet

766In Stock

$15.31

$12.70

$11.00

$10.56

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-28

8051

17 I/O

8 bit

16 bit

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

C8051F381-GM
Silicon Labs
1: $8.80
900In Stock

Mfr. Part #
C8051F381-GM

Mouser Part #
634-C8051F381-GM

Silicon Labs

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

Learn More

Datasheet

900In Stock

$8.80

$7.31

$6.28

$5.99

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

25 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU

C8051F392-A-GM
Silicon Labs
1: $5.14
1,985In Stock
1,911Expected 11/2/2026

Mfr. Part #
C8051F392-A-GM

Mouser Part #
634-C8051F392-A-GM

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU

Learn More

Datasheet

1,985In Stock

1,911Expected 11/2/2026

$5.14

$4.29

$3.60

$3.43

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

8051

17 I/O

8 bit

10 bit

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

C8051F502-IM
Silicon Labs
1: $15.48
548In Stock

Mfr. Part #
C8051F502-IM

Mouser Part #
634-C8051F502-IM

Silicon Labs

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

Datasheet

548In Stock

$15.48

$12.83

$11.12

$10.67

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

25 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32

C8051F502-IMR
Silicon Labs
1: $17.78
301In Stock

Mfr. Part #
C8051F502-IMR

Mouser Part #
634-C8051F502-IMR

Silicon Labs

8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32

Datasheet

301In Stock

Cut Tape

$17.78

$13.51

$12.95

$11.41

View

Reel

$9.23

Min.: 1
Mult.: 1

: 1,500

8051

8 bit

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

C8051F507-IM
Silicon Labs
1: $14.22
583In Stock

Mfr. Part #
C8051F507-IM

Mouser Part #
634-C8051F507-IM

Silicon Labs

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

Datasheet

583In Stock

$14.22

$11.78

$10.34

$9.87

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

25 I/O

8 bit

12 bit

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

C8051F550-IM
Silicon Labs
1: $11.57
514In Stock
1,911Expected 9/1/2026

Mfr. Part #
C8051F550-IM

Mouser Part #
634-C8051F550-IM

Silicon Labs

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

Datasheet

514In Stock

1,911Expected 9/1/2026

$11.57

$9.59

$8.15

$7.81

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-24

8051

18 I/O

8 bit

12 bit

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

C8051F553-IM
Silicon Labs
1: $12.78
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F553-IM

Mouser Part #
634-C8051F553-IM

Silicon Labs

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

$12.78

$9.71

$9.00

$8.05

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-24

8051

18 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3245LTI-139
Infineon Technologies
1: $12.53
449In Stock

Mfr. Part #
CY8C3245LTI-139

Mouser Part #
727-CY8C3245LTI-139

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

449In Stock

$12.53

$9.75

$8.63

$8.28

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

8051

29 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3245LTI-163
Infineon Technologies
1: $12.68
733In Stock

Mfr. Part #
CY8C3245LTI-163

Mouser Part #
727-CY8C3245LTI-163

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

733In Stock

$12.68

$9.87

$8.74

$8.39

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

46 I/O

8 bit

12 bit

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

CY8C3246PVI-147
Infineon Technologies
1: $15.59
371In Stock

Mfr. Part #
CY8C3246PVI-147

Mouser Part #
727-CY8C3246PVI-147

Infineon Technologies

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

Learn More

Datasheet

371In Stock

$15.59

$14.69

$10.74

$10.34

View

Min.: 1
Mult.: 1

SMD/SMT

SSOP-48

8051

31 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3666LTI-027
Infineon Technologies
1: $29.33
147In Stock

Mfr. Part #
CY8C3666LTI-027

Mouser Part #
727-CY8C3666LTI-027

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

147In Stock

$29.33

$23.44

$21.09

$21.00

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

28 I/O

8 bit

12 bit

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

CY8C3666LTI-203
Infineon Technologies
1: $21.06
1,122In Stock

Mfr. Part #
CY8C3666LTI-203

Mouser Part #
727-CY8C3666LTI-203

Infineon Technologies

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

Learn More

Datasheet

1,122In Stock

$21.06

$16.68

$15.59

$14.38

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

46 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3866AXI-040
Infineon Technologies
1: $35.85
307In Stock

Mfr. Part #
CY8C3866AXI-040

Mouser Part #
727-CY8C3866AXI-040

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

307In Stock

$35.85

$28.44

$26.79

$24.21

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

72 I/O

8 bit

20 bit

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

CY8C3866AXI-040T
Infineon Technologies
1: $34.98
559In Stock

Mfr. Part #
CY8C3866AXI-040T

Mouser Part #
727-CY8C3866AXI-040T

Infineon Technologies

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

Learn More

Datasheet

559In Stock

Cut Tape

$34.98

$28.08

$25.36

$24.21

View

Reel

$22.06

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

TQFP-100

8051

72 I/O

8 bit

20 bit

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3866PVI-070
Infineon Technologies
1: $28.76
237In Stock

Mfr. Part #
CY8C3866PVI-070

Mouser Part #
727-CY8C3866PVI-070

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

237In Stock

$28.76

$26.43

$20.45

$19.77

View

Min.: 1
Mult.: 1

SMD/SMT

SSOP-48

8051

29 I/O

8 bit

20 bit

8-bit Microcontrollers - MCU 64KB,16ADC,CAN,64Pin MCU

C8051F061-GQ
Silicon Labs
1: $52.09
3,980In Stock
End of Life

Mfr. Part #
C8051F061-GQ

Mouser Part #
634-C8051F061-GQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 64KB,16ADC,CAN,64Pin MCU

Datasheet

3,980In Stock

$52.09

$43.62

$40.60

$37.40

Quote

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

8051

24 I/O

8 bit

10 bit, 2 x 16 bit

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

C8051F120-GQR
Silicon Labs
1: $66.21
521In Stock
End of Life

Mfr. Part #
C8051F120-GQR

Mouser Part #
634-C8051F120-GQR

End of Life

Silicon Labs

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

Datasheet

521In Stock

Cut Tape

$66.21

$54.76

$52.46

$49.67

Reel

$46.16

Quote

Min.: 1
Mult.: 1

: 250

SMD/SMT

TQFP-100

8051

64 I/O

8 bit

8 bit, 12 bit

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

C8051F121-GQ
Silicon Labs
1: $63.74
1,248In Stock
End of Life

Mfr. Part #
C8051F121-GQ

Mouser Part #
634-C8051F121-GQ

End of Life

Silicon Labs

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

Datasheet

1,248In Stock

$63.74

$53.25

$50.65

$46.35

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 64 kB 5 V 8-bit MCU

C8051F501-IM
Silicon Labs
1: $16.82
600In Stock
End of Life

Mfr. Part #
C8051F501-IM

Mouser Part #
634-C8051F501-IM

End of Life

Silicon Labs

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

Datasheet

600In Stock

$16.82

$13.85

$12.53

$11.66

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

8051

40 I/O

8 bit

12 bit

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

C8051F582-IM
Silicon Labs
1: $20.79
5,023In Stock
End of Life

Mfr. Part #
C8051F582-IM

Mouser Part #
634-C8051F582-IM

End of Life

Silicon Labs

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

Datasheet

5,023In Stock

$20.79

$17.25

$15.03

$14.60

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

25 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm)

IS32CS8974A-QWLCA3-TR
Lumissil
1: $1.68
2,450In Stock
New Product

Mfr. Part #
IS32CS8974A-QWLCA3-TR

Mouser Part #
870-32CS8974AQWLA3TR

New Product

Lumissil

8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm)

Learn More

Datasheet

2,450In Stock

Cut Tape

$1.68

$1.43

$1.25

$1.18

Reel

$0.93

View

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

WQFN-24

8051

20 I/O

8 bit

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB 8-bit MCU

C8051F860-C-GS
Silicon Labs
1: $3.87
375In Stock
NRND

Mfr. Part #
C8051F860-C-GS

Mouser Part #
634-C8051F860-C-GS

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB 8-bit MCU

Learn More

Datasheet

375In Stock

$3.87

$3.39

$2.72

$2.56

View

Min.: 1
Mult.: 1

SMD/SMT

SOIC-16

8051

13 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V

AT89C2051-24PU
Microchip Technology
1: $2.70
1,413In Stock

Mfr. Part #
AT89C2051-24PU

Mouser Part #
556-A89C2051-24PU

Microchip Technology

8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V

Datasheet

1,413In Stock

$2.70

Min.: 1
Mult.: 1

Through Hole

PDIP-20

8051

15 I/O

8 bit

No ADC

8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V

AT89C2051-12PU
Microchip Technology
1: $2.70
1,076In Stock

Mfr. Part #
AT89C2051-12PU

Mouser Part #
556-A89C205112PU

Microchip Technology

8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V

Datasheet

1,076In Stock

$2.70

$2.24

Min.: 1
Mult.: 1

Through Hole

PDIP-20

8051

15 I/O

8 bit

No ADC

8051 Core 8 bit Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

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Resources

Support

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