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8051 microcontroller Embedded Processors & Controllers

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Types of Embedded Processors & Controllers

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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 8051 50 MHz 128 kB 5 V 8-bit MCU

C8051F581-IM
Silicon Labs
1: $22.74
107In Stock
End of Life

Mfr. Part #
C8051F581-IM

Mouser Part #
634-C8051F581-IM

End of Life

Silicon Labs

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

Learn More

Datasheet

107In Stock

$22.74

$17.28

$16.56

$14.59

View

Min.: 1
Mult.: 1

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

AEC-Q100

Tube

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 50 MHz 8 kB 8-bit MCU

C8051F353-GMR
Silicon Labs
1: $16.77
103In Stock

Mfr. Part #
C8051F353-GMR

Mouser Part #
634-C8051F353-GMR

Silicon Labs

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

Datasheet

103In Stock

Cut Tape

$16.77

$13.64

$11.99

$11.43

View

Reel

$9.22

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-28

8051

8 bit

50 MHz

8 kB

768 B

16 bit

17 I/O

- 40 C

+ 85 C

Reel, Cut Tape

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 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 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 50 MHz 64 kB 8-bit MCU

C8051F384-GQ
Silicon Labs
1: $10.97
202In Stock
End of Life

Mfr. Part #
C8051F384-GQ

Mouser Part #
634-C8051F384-GQ

End of Life

Silicon Labs

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

Learn More

Datasheet

202In Stock

$10.97

$8.23

$7.76

$6.86

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-48

8051

8 bit

48 MHz

64 kB

4.35 kB

40 I/O

- 40 C

+ 85 C

Tray

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

C8051F125-GQ
Silicon Labs
1: $60.65
5In Stock
End of Life

Mfr. Part #
C8051F125-GQ

Mouser Part #
634-C8051F125-GQ

End of Life

Silicon Labs

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

Datasheet

5In Stock

$60.65

$50.15

$48.05

$45.53

$45.50

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-64

8051

8 bit

50 MHz

128 kB

8.25 kB

12 bit

32 I/O

- 40 C

+ 85 C

Tray

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 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 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 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

C8051F931-G-GMR
Silicon Labs
1: $7.68
99In Stock
End of Life

Mfr. Part #
C8051F931-G-GMR

Mouser Part #
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

$7.68

$6.27

$5.45

$5.16

Reel

$4.08

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit

16 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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 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 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 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 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 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 Single-Cycle 8051 8K ISP Flash MCU

AT89LP52-20MU
Microchip Technology
720: $1.85
Non-Stocked Lead-Time 13 Weeks

Mfr. Part #
AT89LP52-20MU

Mouser Part #
556-AT89LP52-20MU

Microchip Technology

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

Learn More

Datasheet

Non-Stocked Lead-Time 13 Weeks

$1.85

Min.: 720
Mult.: 360

8-bit Microcontrollers - MCU

SMD/SMT

VQFN-44

8051

8 bit

20 MHz

8 kB

256 B

No ADC

36 I/O

- 40 C

+ 85 C

Tray

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

CY8C3245AXI-166
Infineon Technologies
1: $15.38
Lead-Time 10 Weeks

Mfr. Part #
CY8C3245AXI-166

Mouser Part #
727-CY8C3245AXI-166

Infineon Technologies

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

Learn More

Datasheet

Lead-Time 10 Weeks

$15.38

$12.42

$10.91

$10.08

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

32 kB

4 kB

72 I/O

+ 85 C

Tray

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB51F16I-C-TSSOP20R
Silicon Labs
2,500: $0.729
Non-Stocked Lead-Time 24 Weeks

Mfr. Part #
EFM8BB51F16I-C-TSSOP20R

Mouser Part #
634-EFM851F16TSOP20R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

$0.729

$0.718

Min.: 2,500
Mult.: 2,500

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V

CY8C3865LTI-014
Infineon Technologies
1,300: $17.73
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3865LTI-014

Mouser Part #
727-CY8C3865LTI-014

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$17.73

Quote

Min.: 1,300
Mult.: 1,300

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

67 MHz

32 kB

8 kB

20 bit

28 I/O

+ 85 C

Tray

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

CY8C3445LTI-079
Infineon Technologies
2,600: $9.82
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3445LTI-079

Mouser Part #
727-CY8C3445LTI-079

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$9.82

Quote

Min.: 2,600
Mult.: 2,600

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

46 I/O

- 40 C

+ 85 C

Tray

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

CY8C3244LTI-123
Infineon Technologies
1: $13.74
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
CY8C3244LTI-123

Mouser Part #
727-CY8C3244LTI-123

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$13.74

$10.62

$10.13

$8.79

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

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