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50 MHz 8-bit Microcontrollers - MCU

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Results: 195

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Part #

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

C8051F581-IQ
Silicon Labs
1: $16.68
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

$16.68

$13.15

$12.47

$11.17

View

Min.: 1
Mult.: 1

8051

128 kB

8.25 kB

QFP-48

50 MHz

12 bit

40 I/O

1.8 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 125 C

C8051F581

AEC-Q100

Tray

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

C8051F581-IQR
Silicon Labs
1: $17.15
15In Stock
End of Life

Mfr. Part No.
C8051F581-IQR

Mouser Part No
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

$17.15

$13.49

$12.70

$11.39

$11.34

Reel

$10.17

MouseReel Available

Min.: 1
Mult.: 1

: 500

8051

128 kB

8.25 kB

QFN-48

50 MHz

12 bit

40 I/O

1.8 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 125 C

C8051F581

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU

EFM8BB31F64I-D-QFP32
Silicon Labs
1: $4.73
5In Stock
End of Life

Mfr. Part No.
EFM8BB31F64I-D-QFP32

Mouser Part No
634-EF8BB31F64IDQP32

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU

Datasheet

5In Stock

$4.73

$3.12

$2.85

$2.42

View

Min.: 1
Mult.: 1

CIP-51 8051

64 kB

4.35 kB

QFP-32

50 MHz

10 bit, 12 bit

28 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

Tray

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

EFM8BB31F32I-D-4QFN24
Silicon Labs
1: $3.33
475In Stock

Mfr. Part No.
EFM8BB31F32I-D-4QFN24

Mouser Part No
634-EF8BB31F32ID4F24

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

475In Stock

$3.33

$2.19

$2.02

$1.76

View

Min.: 1
Mult.: 1

CIP-51 8051

32 kB

2.3 kB

QFN-24

50 MHz

10 bit, 12 bit

20 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

Tube

8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AC

EZ80F91AZA50EK
ZiLOG
1: $18.32
15In Stock
1,980On Order

Mfr. Part No.
EZ80F91AZA50EK

Mouser Part No
692-EZ80F91AZA50EK

ZiLOG

8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AC

Datasheet

15In Stock

1,980On Order

$18.32

$13.92

$12.44

$10.90

Min.: 1
Mult.: 1

eZ80

256 kB

8 kB

50 MHz

No ADC

32 I/O

3 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

EZ80F91

8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AB

EZ80F91AZ050EK
ZiLOG
1: $16.80
14In Stock
780Expected 03/03/2027

Mfr. Part No.
EZ80F91AZ050EK

Mouser Part No
692-EZ80F91AZ050EK

ZiLOG

8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AB

Datasheet

14In Stock

780Expected 03/03/2027

$16.80

$13.32

$11.71

$11.30

Min.: 1
Mult.: 1

eZ80

256 kB

8 kB

50 MHz

No ADC

32 I/O

3 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

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

C8051F351-GM
Silicon Labs
1: $14.61
1,528Expected 11/08/2026

Mfr. Part No.
C8051F351-GM

Mouser Part No
634-C8051F351-GM

Silicon Labs

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

Datasheet

1,528Expected 11/08/2026

$14.61

$12.12

$10.55

$10.14

View

Min.: 1
Mult.: 1

8051

8 kB

768 B

QFN-28

50 MHz

24 bit

17 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F351

Tube

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

C8051F390-A-GM
Silicon Labs
1: $3.97
1,862Expected 18/08/2026

Mfr. Part No.
C8051F390-A-GM

Mouser Part No
634-C8051F390-A-GM

Silicon Labs

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

Learn More

Datasheet

1,862Expected 18/08/2026

$3.97

$3.31

$2.78

$2.65

View

Min.: 1
Mult.: 1

8051

16 kB

1 kB

QFN-24

50 MHz

10 bit

21 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F390

Tube

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

EFM8BB22F16I-C-QFN28
Silicon Labs
1: $3.18
1In Stock

Mfr. Part No.
EFM8BB22F16I-C-QFN28

Mouser Part No
634-8BB22F16ICQFN28

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

1In Stock

$3.18

$2.07

$1.90

$1.63

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

2.3 kB

QFN-28

50 MHz

12 bit

22 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB2

Tube

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

EFM8BB21F16A-C-QFN20R
Silicon Labs
1: $4.46
1,498Expected 04/09/2026

Mfr. Part No.
EFM8BB21F16A-C-QFN20R

Mouser Part No
634-BB21F16ACQFN20R

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

1,498Expected 04/09/2026

Cut Tape

$4.46

$2.95

$2.68

$2.28

View

Reel

$1.90

Min.: 1
Mult.: 1

: 1,500

CIP-51 8051

16 kB

2.25 kB

QFN-20

50 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB2

AEC-Q100

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU

EFM8BB31F64I-D-QFN32R
Silicon Labs
1: $4.11
2,430Expected 28/08/2026

Mfr. Part No.
EFM8BB31F64I-D-QFN32R

Mouser Part No
634-EF8BB31F64IDN32R

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

2,430Expected 28/08/2026

Cut Tape

$4.11

$2.72

$2.48

$2.10

View

Reel

$1.58

Min.: 1
Mult.: 1

: 2,500

CIP-51 8051

64 kB

4.35 kB

QFN-32

50 MHz

10 bit, 12 bit

29 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

Reel, Cut Tape

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F16G-A-QFN16R
Silicon Labs
1: $1.66
1,000In Stock

Mfr. Part No.
EFM8BB50F16G-A-QFN16R

Mouser Part No
634-M8BB50F16GAFN16R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

1,000In Stock

Cut Tape

$1.66

$1.06

$0.942

$0.775

View

Reel

$0.469

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

16 kB

512 B

QFN-16

50 MHz

12 bit

12 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

BB50

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

EFM8BB50F16G-A-QFN12
Silicon Labs
1: $1.04
1,207On Order

Mfr. Part No.
EFM8BB50F16G-A-QFN12

Mouser Part No
634-M8BB50F16GAQFN12

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

Learn More

Datasheet

1,207On Order

$1.04

$0.887

$0.779

$0.661

View

Min.: 1
Mult.: 1

16 kB

512 B

QFN-12

50 MHz

12 bit

9 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

BB50

Cut Tape

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

C8051F391-A-GM
Silicon Labs
1,911: $2.24
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
C8051F391-A-GM

Mouser Part No
634-C8051F391-A-GM

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$2.24

Min.: 1,911
Mult.: 1,911

8051

16 kB

1 kB

QFN-24

50 MHz

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F391

Tube

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

C8051F394-A-GM
Silicon Labs
1: $3.62
Lead-Time 12 Weeks

Mfr. Part No.
C8051F394-A-GM

Mouser Part No
634-C8051F394-A-GM

Silicon Labs

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

Learn More

Datasheet

Lead-Time 12 Weeks

$3.62

$3.03

$2.54

$2.42

View

Min.: 1
Mult.: 1

8051

8 kB

1 kB

QFN-24

50 MHz

10 bit

21 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F394

Tube

8-bit Microcontrollers - MCU 8kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24

C8051F394-A-GMR
Silicon Labs
1: $5.53
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
C8051F394-A-GMR

Mouser Part No
634-C8051F394-A-GMR

Silicon Labs

8-bit Microcontrollers - MCU 8kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$5.53

$3.66

$3.33

$2.83

View

Reel

$2.13

Min.: 1
Mult.: 1

: 1,500

8051

8 kB

1 kB

50 MHz

10 bit

21 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F394

Reel, Cut Tape

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

C8051F395-A-GM
Silicon Labs
1,911: $1.99
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
C8051F395-A-GM

Mouser Part No
634-C8051F395-A-GM

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.99

Min.: 1,911
Mult.: 1,911

8051

8 kB

1 kB

QFN-24

50 MHz

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F395

Tube

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

C8051F396-A-GM
Silicon Labs
1,911: $1.97
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
C8051F396-A-GM

Mouser Part No
634-C8051F396-A-GM

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.97

Min.: 1,911
Mult.: 1,911

8051

8 kB

1 kB

QFN-20

50 MHz

10 bit

17 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F396

Tube

8-bit Microcontrollers - MCU 8kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN20

C8051F396-A-GMR
Silicon Labs
1: $3.82
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
C8051F396-A-GMR

Mouser Part No
634-C8051F396-A-GMR

Silicon Labs

8-bit Microcontrollers - MCU 8kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN20

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$3.82

$3.12

$2.87

$2.55

Reel

$2.00

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8051

8 kB

1 kB

QFN-20

50 MHz

10 bit

17 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F396

Reel, Cut Tape, MouseReel

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

C8051F397-A-GM
Silicon Labs
1,911: $1.97
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
C8051F397-A-GM

Mouser Part No
634-C8051F397-A-GM

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.97

Min.: 1,911
Mult.: 1,911

8051

8 kB

1 kB

QFN-20

50 MHz

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F397

Tube

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

C8051F398-A-GM
Silicon Labs
1,911: $1.79
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
C8051F398-A-GM

Mouser Part No
634-C8051F398-A-GM

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.79

Min.: 1,911
Mult.: 1,911

8051

4 kB

1 kB

QFN-20

50 MHz

10 bit

17 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F398

Tube

8-bit Microcontrollers - MCU 8051 50 MHz 4 kB LFO 8-bit MCU

C8051F399-A-GM
Silicon Labs
1,911: $1.65
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
C8051F399-A-GM

Mouser Part No
634-C8051F399-A-GM

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 4 kB LFO 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.65

$1.61

Min.: 1,911
Mult.: 1,911

8051

4 kB

1 kB

QFN-20

50 MHz

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F399

Tube

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

EFM8BB50F16G-A-QFN12R
Silicon Labs
3,000: $0.464
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F16G-A-QFN12R

Mouser Part No
634-M8BB50F16GAFN12R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$0.464

$0.444

Min.: 3,000
Mult.: 3,000

: 3,000

16 kB

512 B

QFN-12

50 MHz

12 bit

9 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

BB50

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F16G-A-SOIC16R
Silicon Labs
2,500: $0.561
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F16G-A-SOIC16R

Mouser Part No
634-M8BB50F16GSIC16R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$0.561

$0.552

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

: 2,500

16 kB

512 B

SOIC-16

50 MHz

12 bit

12 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

BB50

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

EFM8BB50F16I-A-QFN12R
Silicon Labs
1: $2.00
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F16I-A-QFN12R

Mouser Part No
634-M8BB50F16IAFN12R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$2.00

$1.22

$1.03

$0.781

Reel

$0.469

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

16 kB

512 B

QFN-12

50 MHz

12 bit

9 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

50 MHz 8-bit Microcontrollers - MCU

Customer Service Office

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Resources

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9 I/O
12 I/O
13 I/O
16 I/O
17 I/O
18 I/O
20 I/O
21 I/O
22 I/O
25 I/O
28 I/O
29 I/O
31 I/O
32 I/O
33 I/O
40 I/O
46 I/O
48 I/O
64 I/O
70 I/O

BB50
C8051F124
C8051F125
C8051F126
C8051F127
C8051F351
C8051F353
C8051F390
C8051F391
C8051F392
C8051F394
C8051F395
C8051F396
C8051F397
C8051F398
C8051F399
C8051F411
C8051F413
C8051F500
C8051F501