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8051 microcontroller Embedded Processors & Controllers

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Types of Embedded Processors & Controllers

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Results: 613

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Part #

8-bit Microcontrollers - MCU 64KB,16ADC,100Pin MCU

C8051F064-GQ
Silicon Labs
1: $43.32
2In Stock
End of Life

Mfr. Part #
C8051F064-GQ

Mouser Part #
634-C8051F064-GQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 64KB,16ADC,100Pin MCU

Datasheet

2In Stock

$43.32

$34.91

$32.46

$29.74

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

25 MHz

64 kB

4.25 kB

16 bit

59 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM)

C8051F330-GMR
Silicon Labs
1: $14.99
24In Stock
1,500Expected 10/23/2026
NRND

Mfr. Part #
C8051F330-GMR

Mouser Part #
634-C8051F330-GMR

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM)

Datasheet

24In Stock

1,500Expected 10/23/2026

Cut Tape

$14.99

$11.90

$10.92

$9.87

View

Reel

$8.20

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

8051

8 bit

25 MHz

8 kB

768 B

10 bit

17 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

C8051F131-GQR
Silicon Labs
1: $44.86
20In Stock
End of Life

Mfr. Part #
C8051F131-GQR

Mouser Part #
634-C8051F131-GQR

End of Life

Silicon Labs

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

Datasheet

20In Stock

Cut Tape

$44.86

$37.54

$35.43

Reel

$35.18

Min.: 1
Mult.: 1

: 500

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-64

8051

8 bit

100 MHz

128 kB

8.25 kB

10 bit

32 I/O

- 40 C

+ 85 C

Reel, Cut Tape

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

C8051F383-GM
Silicon Labs
1: $7.79
21In Stock

Mfr. Part #
C8051F383-GM

Mouser Part #
634-C8051F383-GM

Silicon Labs

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

Learn More

Datasheet

21In Stock

$7.79

$7.45

$5.55

$5.29

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-32

8051

8 bit

48 MHz

32 kB

2.25 kB

10 bit

25 I/O

- 40 C

+ 85 C

Tube

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

C8051F506-IM
Silicon Labs
1: $16.13
6In Stock

Mfr. Part #
C8051F506-IM

Mouser Part #
634-C8051F506-IM

Silicon Labs

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

Datasheet

6In Stock

$16.13

$13.12

$12.51

$10.86

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-32

8051

8 bit

50 MHz

32 kB

4.25 kB

12 bit

25 I/O

- 40 C

+ 125 C

AEC-Q100

Tube

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

C8051F503-IM
Silicon Labs
1: $16.41
44In Stock
End of Life

Mfr. Part #
C8051F503-IM

Mouser Part #
634-C8051F503-IM

End of Life

Silicon Labs

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

Datasheet

44In Stock

$16.41

$13.34

$12.71

$11.04

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-32

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

25 I/O

- 40 C

+ 125 C

AEC-Q100

Tube

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

C8051F120-GQ
Silicon Labs
1: $70.06
5In Stock
2,250Expected 9/25/2026
End of Life

Mfr. Part #
C8051F120-GQ

Mouser Part #
634-C8051F120-GQ

End of Life

Silicon Labs

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

Datasheet

5In Stock

2,250Expected 9/25/2026

$70.06

$58.06

$50.99

$49.48

Quote

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

100 MHz

128 kB

8.25 kB

8 bit, 12 bit

64 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFP48

C8051F500-IQR
Silicon Labs
1: $17.10
23In Stock
End of Life

Mfr. Part #
C8051F500-IQR

Mouser Part #
634-C8051F500-IQR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFP48

Datasheet

23In Stock

Cut Tape

$17.10

$13.47

$12.77

$11.78

Reel

$11.70

MouseReel Available

Min.: 1
Mult.: 1

: 500

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-48

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, SPI, 2xUART, I2C, QFP48

C8051F581-IQR
Silicon Labs
1: $22.92
15In Stock
End of Life

Mfr. Part #
C8051F581-IQR

Mouser Part #
634-C8051F581-IQR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, SPI, 2xUART, I2C, QFP48

Datasheet

15In Stock

Cut Tape

$22.92

$17.89

$16.16

$14.81

Reel

$13.73

MouseReel Available

Min.: 1
Mult.: 1

: 500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

128 kB

8.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

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

C8051F022-GQ
Silicon Labs
1: $46.03
7In Stock
End of Life

Mfr. Part #
C8051F022-GQ

Mouser Part #
634-C8051F022-GQ

End of Life

Silicon Labs

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

Datasheet

7In Stock

$46.03

$38.48

$35.69

$35.00

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

25 MHz

64 kB

4.35 kB

8 bit, 10 bit

64 I/O

- 40 C

+ 85 C

Tray

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

C8051F501-IQ
Silicon Labs
1: $16.20
20In Stock
End of Life

Mfr. Part #
C8051F501-IQ

Mouser Part #
634-C8051F501-IQ

End of Life

Silicon Labs

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

Datasheet

20In Stock

$16.20

$12.99

$11.93

$10.96

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFP-48

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

AEC-Q100

Tray

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

C8051F500-IQ
Silicon Labs
1: $17.95
149In Stock
End of Life

Mfr. Part #
C8051F500-IQ

Mouser Part #
634-C8051F500-IQ

End of Life

Silicon Labs

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

Datasheet

149In Stock

$17.95

$14.30

$13.23

$12.13

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFP-48

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

AEC-Q100

Tray

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

C8051F505-IQ
Silicon Labs
1: $16.91
21In Stock
End of Life

Mfr. Part #
C8051F505-IQ

Mouser Part #
634-C8051F505-IQ

End of Life

Silicon Labs

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

Datasheet

21In Stock

$16.91

$13.75

$13.12

$11.39

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFP-48

8051

8 bit

50 MHz

32 kB

4.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

AEC-Q100

Tray

8-bit Microcontrollers - MCU 50 MIPS, 32 kB, 4 kB, SPI, UART, I2C, QFP48

C8051F505-IQR
Silicon Labs
1: $16.90
1In Stock
End of Life

Mfr. Part #
C8051F505-IQR

Mouser Part #
634-C8051F505-IQR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 50 MIPS, 32 kB, 4 kB, SPI, UART, I2C, QFP48

Datasheet

1In Stock

Cut Tape

$16.90

$13.74

$13.10

$11.38

$10.87

Reel

$10.43

Min.: 1
Mult.: 1

: 500

8-bit Microcontrollers - MCU

SMD/SMT

8051

8 bit

50 MHz

32 kB

4.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

Reel, Cut Tape

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

C8051F931-G-GM
Silicon Labs
1: $7.38
310In Stock
End of Life

Mfr. Part #
C8051F931-G-GM

Mouser Part #
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

310In Stock

$7.38

$6.14

$5.17

$4.94

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit

16 I/O

- 40 C

+ 85 C

Tube

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

C8051F581-IQ
Silicon Labs
1: $22.58
15In Stock
End of Life

Mfr. Part #
C8051F581-IQ

Mouser Part #
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

$22.58

$18.40

$16.58

$15.17

$14.56

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFP-48

8051

8 bit

50 MHz

128 kB

8.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

AEC-Q100

Tray

8-bit Microcontrollers - MCU Single-Cycle 8051 64K ISP Flash

AT89LP6440-20MU
Microchip Technology
360: $6.64
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89LP6440-20MU

Mouser Part #
556-AT89LP6440-20MU

Microchip Technology

8-bit Microcontrollers - MCU Single-Cycle 8051 64K ISP Flash

Datasheet

Non-Stocked Lead-Time 9 Weeks

$6.64

Min.: 360
Mult.: 360

8-bit Microcontrollers - MCU

SMD/SMT

VQFN-44

8051

8 bit

20 MHz

64 kB

4.25 kB

10 bit

38 I/O

- 40 C

+ 85 C

Tray

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

CY8C3866LTI-030T
Infineon Technologies
2,000: $19.38
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3866LTI-030T

Mouser Part #
727-CY8C3866LTI-030T

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$19.38

Min.: 2,000
Mult.: 2,000

: 2,000

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 8051 8bit 67MHz 32KB

CY8C3865AXI-019T
Infineon Technologies
1,500: $19.18
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3865AXI-019T

Mouser Part #
727-CY8C3865AXI-019T

Infineon Technologies

8-bit Microcontrollers - MCU 8051 8bit 67MHz 32KB

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$19.18

Min.: 1,500
Mult.: 1,500

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

32 kB

4 kB

20 bit

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL

AT89LP51-20MU
Microchip Technology
720: $1.86
Non-Stocked Lead-Time 13 Weeks

Mfr. Part #
AT89LP51-20MU

Mouser Part #
556-AT89LP51-20MU

Microchip Technology

8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL

Learn More

Datasheet

Non-Stocked Lead-Time 13 Weeks

$1.86

Min.: 720
Mult.: 360

8-bit Microcontrollers - MCU

SMD/SMT

VQFN-44

8051

8 bit

20 MHz

4 kB

256 B

No ADC

36 I/O

- 40 C

+ 85 C

Tray

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

CY8C3866AXI-039
Infineon Technologies
1: $35.91
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3866AXI-039

Mouser Part #
727-CY8C3866AXI-039

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$35.91

$28.43

$25.75

$24.23

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

72 I/O

- 40 C

+ 85 C

Tray

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

CY8C3666LTI-050
Infineon Technologies
1: $29.48
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3666LTI-050

Mouser Part #
727-CY8C3666LTI-050

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$29.48

$23.83

$22.84

$20.12

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

31 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

CY8C3444LTI-119
Infineon Technologies
1: $16.33
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3444LTI-119

Mouser Part #
727-CY8C3444LTI-119

Infineon Technologies

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$16.33

$13.27

$12.66

$10.56

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

16 kB

2 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

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

CY8C3666AXI-036
Infineon Technologies
1: $25.86
Lead-Time 10 Weeks

Mfr. Part #
CY8C3666AXI-036

Mouser Part #
727-CY8C3666AXI-036

Infineon Technologies

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

Learn More

Datasheet

Lead-Time 10 Weeks

$25.86

$20.75

$18.04

$17.47

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

28 I/O

+ 85 C

Tray

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

CY8C3445LTI-078
Infineon Technologies
1: $16.25
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3445LTI-078

Mouser Part #
727-CY8C3445LTI-078

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$16.25

$12.74

$11.34

$10.91

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

8051 microcontroller Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

CSP-16
DFN-10
LQFP-32
LQFP-80
PDIP-14
PDIP-20
PDIP-40
PLCC-44
PQFP-48
QFN-11
QFN-12
QFN-16
QFN-20
QFN-24
QFN-28
QFN-32
QFN-36
QFN-40
QFN-48
QFN-68

128 B
256 B
512 B
768 B
1 kB
1.25 kB
1.28 kB
1.54 kB
2 kB
2.25 kB
2.3 kB
2.31 kB
3.25 kB
4 kB
4.25 kB
4.35 kB
8 kB
8.25 kB
16 kB
32 kB

6 I/O
8 I/O
9 I/O
11 I/O
12 I/O
13 I/O
15 I/O
16 I/O
17 I/O
18 I/O
19 I/O
20 I/O
21 I/O
22 I/O
24 I/O
25 I/O
28 I/O
29 I/O
31 I/O
32 I/O