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CIP-51 8051 Core 8-bit Microcontrollers - MCU

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Part #

8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

EFM8UB20F64G-B-QFP48
Silicon Labs
1: 23,28 kr.
6.820In Stock

Mfr. Part No.
EFM8UB20F64G-B-QFP48

Mouser Part No
634-EFM8UBF64GBQFP48

Silicon Labs

8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

Datasheet

6.820In Stock

23,28 kr.

19,47 kr.

18,05 kr.

16,26 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

64 kB

4.25 kB

QFP-48

48 MHz

10 bit

40 I/O

3.3 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB2

Tray

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

EFM8BB21F16G-C-QFN20R
Silicon Labs
1: 8,28 kr.
45.477In Stock

Mfr. Part No.
EFM8BB21F16G-C-QFN20R

Mouser Part No
634-8BB21F16GCQFN20R

Silicon Labs

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

Learn More

Datasheet

45.477In Stock

Cut Tape

8,28 kr.

7,06 kr.

6,54 kr.

5,80 kr.

Reel

4,62 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

16 kB

2.3 kB

QFN-20

50 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8BB2

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU

EFM8UB10F16G-C-QFN20R
Silicon Labs
1: 13,20 kr.
26.682In Stock

Mfr. Part No.
EFM8UB10F16G-C-QFN20R

Mouser Part No
634-8UB10F16GCQFN20R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU

Datasheet

26.682In Stock

Cut Tape

13,20 kr.

11,12 kr.

10,29 kr.

9,25 kr.

Reel

7,61 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

16 kB

2.25 kB

QFN-20

50 MHz

12 bit

13 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 2 kB RAM 8-bit Universal Bee MCU

EFM8UB10F8G-C-QFN20R
Silicon Labs
1: 9,10 kr.
61.533In Stock

Mfr. Part No.
EFM8UB10F8G-C-QFN20R

Mouser Part No
634-8UB10F8GCQFN20R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 2 kB RAM 8-bit Universal Bee MCU

Datasheet

61.533In Stock

Cut Tape

9,10 kr.

7,12 kr.

6,40 kr.

5,97 kr.

Reel

5,30 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

8 kB

2.25 kB

QFN-20

50 MHz

12 bit

13 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU

EFM8BB10F8G-A-SOIC16R
Silicon Labs
1: 6,48 kr.
4.385In Stock

Mfr. Part No.
EFM8BB10F8G-A-SOIC16R

Mouser Part No
634-8BB10F8GASO16R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

4.385In Stock

Cut Tape

6,48 kr.

5,51 kr.

5,11 kr.

4,56 kr.

Reel

3,44 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.500

CIP-51 8051

8 kB

512 B

SOIC-16

25 MHz

12 bit

13 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8BB1

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU

EFM8SB10F2G-A-QFN20
Silicon Labs
1: 7,18 kr.
10.483In Stock

Mfr. Part No.
EFM8SB10F2G-A-QFN20

Mouser Part No
634-8SB10F2GAQF20

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

10.483In Stock

7,18 kr.

6,12 kr.

5,70 kr.

5,08 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

2 kB

256 B

QFN-20

25 MHz

12 bit

16 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU

EFM8SB10F2G-A-QFN20R
Silicon Labs
1: 7,18 kr.
2.748In Stock

Mfr. Part No.
EFM8SB10F2G-A-QFN20R

Mouser Part No
634-8SB10F2GAQF20R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU

Datasheet

2.748In Stock

Cut Tape

7,18 kr.

6,12 kr.

5,70 kr.

5,08 kr.

Reel

4,03 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

2 kB

256 B

QFN-20

25 MHz

12 bit

16 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU

EFM8SB10F8G-A-QFN20R
Silicon Labs
1: 8,95 kr.
12.170In Stock

Mfr. Part No.
EFM8SB10F8G-A-QFN20R

Mouser Part No
634-8SB10F8GAQF20R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU

Datasheet

12.170In Stock

Cut Tape

8,95 kr.

7,61 kr.

7,12 kr.

6,30 kr.

Reel

5,04 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

8 kB

512 B

QFN-20

25 MHz

12 bit

16 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU

EFM8SB10F8G-A-QFN24
Silicon Labs
1: 9,77 kr.
1.853In Stock

Mfr. Part No.
EFM8SB10F8G-A-QFN24

Mouser Part No
634-8SB10F8GAQF24

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

1.853In Stock

9,77 kr.

8,28 kr.

6,86 kr.

6,54 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

8 kB

512 B

QFN-24

25 MHz

12 bit

17 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU

EFM8SB10F8G-A-QFN24R
Silicon Labs
1: 9,77 kr.
1.801In Stock

Mfr. Part No.
EFM8SB10F8G-A-QFN24R

Mouser Part No
634-8SB10F8GAQF24R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU

Datasheet

1.801In Stock

Cut Tape

9,77 kr.

8,28 kr.

7,61 kr.

6,86 kr.

View

Reel

5,17 kr.

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

8 kB

512 B

25 MHz

12 bit

17 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Reel, Cut Tape

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

EFM8BB31F16G-D-QFN32
Silicon Labs
1: 9,85 kr.
4.144In Stock

Mfr. Part No.
EFM8BB31F16G-D-QFN32

Mouser Part No
634-EF8BB31F16GDQN32

Silicon Labs

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

Learn More

Datasheet

4.144In Stock

9,85 kr.

8,36 kr.

7,76 kr.

6,93 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

2.3 kB

QFN-32

50 MHz

10 bit, 12 bit

29 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

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

EFM8BB31F64G-D-QFN24R
Silicon Labs
1: 23,57 kr.
3.390In Stock

Mfr. Part No.
EFM8BB31F64G-D-QFN24R

Mouser Part No
634-EF8BB31F64GDF24R

Silicon Labs

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

Learn More

Datasheet

3.390In Stock

Cut Tape

23,57 kr.

15,96 kr.

14,85 kr.

12,91 kr.

Reel

8,95 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

64 kB

4.35 kB

QFN-24

50 MHz

10 bit, 12 bit

20 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

EFM8BB31F64G-D-QFN32
Silicon Labs
1: 14,77 kr.
8.556In Stock

Mfr. Part No.
EFM8BB31F64G-D-QFN32

Mouser Part No
634-EF8BB31F64GDQN32

Silicon Labs

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

Learn More

Datasheet

8.556In Stock

14,77 kr.

12,38 kr.

11,49 kr.

10,29 kr.

View

Min.: 1
Mult.: 1

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

+ 85 C

Tray

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

EFM8BB31F64G-D-QFP32
Silicon Labs
1: 17,01 kr.
6.433In Stock

Mfr. Part No.
EFM8BB31F64G-D-QFP32

Mouser Part No
634-EF8BB31F64GDQP32

Silicon Labs

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

Learn More

Datasheet

6.433In Stock

17,01 kr.

14,25 kr.

13,20 kr.

12,16 kr.

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

+ 85 C

Tray

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

EFM8BB31F64I-D-4QFN24R
Silicon Labs
1: 25,89 kr.
1.456In Stock

Mfr. Part No.
EFM8BB31F64I-D-4QFN24R

Mouser Part No
634-EF8BB31F64ID424R

Silicon Labs

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

Learn More

Datasheet

1.456In Stock

Cut Tape

25,89 kr.

17,16 kr.

15,67 kr.

13,28 kr.

Reel

9,77 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

64 kB

4.35 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

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F32G-B-QFN32
Silicon Labs
1: 23,57 kr.
1.357In Stock

Mfr. Part No.
EFM8SB20F32G-B-QFN32

Mouser Part No
634-EFM8SBF32GBQFN32

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

1.357In Stock

23,57 kr.

15,22 kr.

10,97 kr.

9,92 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

32 kB

4.25 kB

QFN-32

25 MHz

10 bit

24 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8SB

Tube

8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

EFM8UB20F64G-B-QFN32R
Silicon Labs
1: 20,59 kr.
1.663In Stock

Mfr. Part No.
EFM8UB20F64G-B-QFN32R

Mouser Part No
634-EFM8UB64GBQFN32R

Silicon Labs

8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

Datasheet

1.663In Stock

Cut Tape

20,59 kr.

17,16 kr.

15,96 kr.

14,32 kr.

View

Reel

11,64 kr.

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

64 kB

4.25 kB

QFN-32

48 MHz

10 bit

25 I/O

3.3 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB2

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU

EFM8UB20F32G-B-QFP32
Silicon Labs
1: 20,59 kr.
2.042In Stock

Mfr. Part No.
EFM8UB20F32G-B-QFP32

Mouser Part No
634-EFM8UBF32GBQFP32

Silicon Labs

8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU

Datasheet

2.042In Stock

20,59 kr.

17,16 kr.

15,96 kr.

14,32 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

32 kB

2.25 kB

QFP-32

48 MHz

10 bit

25 I/O

3.3 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB2

Tray

8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

EFM8UB20F64G-B-QFP32
Silicon Labs
1: 34,39 kr.
2.068In Stock

Mfr. Part No.
EFM8UB20F64G-B-QFP32

Mouser Part No
634-EFM8UBF64GBQFP32

Silicon Labs

8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

Datasheet

2.068In Stock

34,39 kr.

23,50 kr.

19,17 kr.

16,64 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

64 kB

4.25 kB

QFP-32

48 MHz

10 bit

25 I/O

3.3 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB2

Tray

8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU

EFM8LB12F32E-C-QFN24R
Silicon Labs
1: 26,18 kr.
980In Stock

Mfr. Part No.
EFM8LB12F32E-C-QFN24R

Mouser Part No
634-LB12F32ECQFN24R

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

980In Stock

Cut Tape

26,18 kr.

17,31 kr.

15,82 kr.

13,43 kr.

Reel

9,03 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

32 kB

2.25 kB

QFN-24

72 MHz

10 bit/12 bit/14 bit

20 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

EFM8LB1

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

EFM8LB12F64E-C-QFN24R
Silicon Labs
1: 18,58 kr.
5.614In Stock

Mfr. Part No.
EFM8LB12F64E-C-QFN24R

Mouser Part No
634-LB12F64ECQFN24R

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

5.614In Stock

Cut Tape

18,58 kr.

15,52 kr.

14,40 kr.

12,91 kr.

View

Reel

10,37 kr.

Min.: 1
Mult.: 1

Reel: 1.500

CIP-51 8051

64 kB

4.25 kB

QFN-24

72 MHz

10 bit/12 bit/14 bit

20 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

EFM8LB1

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

EFM8LB12F64E-C-QFN32
Silicon Labs
1: 16,26 kr.
809In Stock

Mfr. Part No.
EFM8LB12F64E-C-QFN32

Mouser Part No
634-LB12F64ECQFN32

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

809In Stock

16,26 kr.

13,65 kr.

12,68 kr.

11,34 kr.

10,74 kr.

Min.: 1
Mult.: 1

CIP-51 8051

64 kB

4.25 kB

QFN-32

72 MHz

10 bit/12 bit/14 bit

29 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

EFM8LB1

Tray

8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

EFM8LB12F64E-C-QFP32
Silicon Labs
1: 21,56 kr.
2.943In Stock
3.750Expected 06/03/2026

Mfr. Part No.
EFM8LB12F64E-C-QFP32

Mouser Part No
634-LB12F64ECQFP32

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

2.943In Stock

3.750Expected 06/03/2026

21,56 kr.

17,98 kr.

16,71 kr.

14,99 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

64 kB

4.25 kB

QFP-32

72 MHz

10 bit/12 bit/14 bit

28 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

EFM8LB1

Tray

8-bit Microcontrollers - MCU

EFM8LB12F64ES1-C-QFN24
Silicon Labs
1: 15,74 kr.
1.274In Stock

Mfr. Part No.
EFM8LB12F64ES1-C-QFN24

Mouser Part No
634-LB12F64ES1CQFN24

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

1.274In Stock

15,74 kr.

13,13 kr.

12,23 kr.

10,82 kr.

10,37 kr.

Min.: 1
Mult.: 1

CIP-51 8051

64 kB

4.25 kB

QFN-24

72 MHz

10 bit/12 bit/14 bit

20 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

EFM8LB1

Tube

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

EFM8BB21F16I-C-QSOP24
Silicon Labs
1: 10,29 kr.
4.982In Stock
End of Life

Mfr. Part No.
EFM8BB21F16I-C-QSOP24

Mouser Part No
634-8BB21F16ICQSOP24

End of Life

Silicon Labs

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

Learn More

Datasheet

4.982In Stock

10,29 kr.

8,73 kr.

8,43 kr.

8,13 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

2.3 kB

QSOP-24

50 MHz

12 bit

21 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB2

Tube

CIP-51 8051 Core 8-bit Microcontrollers - MCU

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