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Busy Bee 8-bit Microcontrollers - MCU

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Part #

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

EFM8BB10F8G-A-QFN20R
Silicon Labs
1: 5,90 kr.
66.640In Stock

Mfr. Part No.
EFM8BB10F8G-A-QFN20R

Mouser Part No
634-8BB10F8GAQF20R

Silicon Labs

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

Learn More

Datasheet

66.640In Stock

Cut Tape

5,90 kr.

5,00 kr.

4,10 kr.

3,83 kr.

View

Reel

3,33 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

CIP-51 8051

8 kB

512 B

QFN-20

25 MHz

12 bit

16 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 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU

EFM8BB10F4G-A-QFN20R
Silicon Labs
1: 6,29 kr.
4.528In Stock

Mfr. Part No.
EFM8BB10F4G-A-QFN20R

Mouser Part No
634-8BB10F4GAQF20R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

4.528In Stock

Cut Tape

6,29 kr.

4,99 kr.

4,46 kr.

4,15 kr.

Reel

3,60 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

CIP-51 8051

4 kB

512 B

QFN-20

25 MHz

12 bit

16 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 Busy Bee MCU

EFM8BB10F2I-A-QFN20
Silicon Labs
1: 4,74 kr.
3.158In Stock

Mfr. Part No.
EFM8BB10F2I-A-QFN20

Mouser Part No
634-EFM8BB10F2IAFN20

Silicon Labs

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

Learn More

Datasheet

3.158In Stock

4,74 kr.

3,81 kr.

3,35 kr.

3,07 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

2 kB

256 B

QFN-20

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB1

Tube

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

EFM8BB10F8I-A-SOIC16
Silicon Labs
1: 7,18 kr.
2.293In Stock

Mfr. Part No.
EFM8BB10F8I-A-SOIC16

Mouser Part No
634-8BB10F8I-ASOIC16

Silicon Labs

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

Learn More

Datasheet

2.293In Stock

7,18 kr.

5,39 kr.

4,99 kr.

4,75 kr.

View

Min.: 1
Mult.: 1

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

+ 125 C

EFM8BB1

Tube

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

EFM8BB10F2G-A-QFN20
Silicon Labs
1: 4,36 kr.
15.995In Stock

Mfr. Part No.
EFM8BB10F2G-A-QFN20

Mouser Part No
634-8BB10F2GAQF20

Silicon Labs

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

Learn More

Datasheet

15.995In Stock

4,36 kr.

3,33 kr.

3,01 kr.

2,79 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

2 kB

256 B

QFN-20

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8BB1

Tube

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

EFM8BB10F2G-A-QFN20R
Silicon Labs
1: 4,74 kr.
24.601In Stock

Mfr. Part No.
EFM8BB10F2G-A-QFN20R

Mouser Part No
634-8BB10F2GAQF20R

Silicon Labs

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

Learn More

Datasheet

24.601In Stock

Cut Tape

4,74 kr.

3,64 kr.

3,33 kr.

3,14 kr.

Reel

2,63 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

CIP-51 8051

2 kB

256 B

QFN-20

25 MHz

12 bit

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

EFM8BB21F16I-C-QFN20
Silicon Labs
1: 8,88 kr.
4.807In Stock

Mfr. Part No.
EFM8BB21F16I-C-QFN20

Mouser Part No
634-8BB21F16I-CQFN20

Silicon Labs

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

Learn More

Datasheet

4.807In Stock

8,88 kr.

6,99 kr.

6,12 kr.

5,63 kr.

View

Min.: 1
Mult.: 1

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

+ 125 C

EFM8BB2

Tube

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

EFM8BB10F8I-A-QFN20
Silicon Labs
1: 8,21 kr.
2.420In Stock

Mfr. Part No.
EFM8BB10F8I-A-QFN20

Mouser Part No
634-FM8BB10F8IAQFN20

Silicon Labs

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

Learn More

Datasheet

2.420In Stock

8,21 kr.

6,86 kr.

6,31 kr.

5,48 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

8 kB

512 B

QFN-20

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB1

Tube

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU

EFM8BB10F4G-A-QFN20
Silicon Labs
1: 5,52 kr.
218In Stock

Mfr. Part No.
EFM8BB10F4G-A-QFN20

Mouser Part No
634-8BB10F4GAQF20

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

218In Stock

5,52 kr.

4,41 kr.

3,55 kr.

3,42 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

4 kB

512 B

QFN-20

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8BB1

Tube

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

EFM8BB10F8G-A-QFN20
Silicon Labs
1: 6,48 kr.
141In Stock

Mfr. Part No.
EFM8BB10F8G-A-QFN20

Mouser Part No
634-8BB10F8GAQF20

Silicon Labs

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

Learn More

Datasheet

141In Stock

6,48 kr.

5,11 kr.

4,50 kr.

4,13 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

8 kB

512 B

QFN-20

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8BB1

Tube

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

EFM8BB10F8G-A-SOIC16
Silicon Labs
1: 6,48 kr.
676In Stock
1.008Expected 24/07/2026

Mfr. Part No.
EFM8BB10F8G-A-SOIC16

Mouser Part No
634-8BB10F8GASO16

Silicon Labs

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

Learn More

Datasheet

676In Stock

1.008Expected 24/07/2026

6,48 kr.

4,84 kr.

4,43 kr.

4,20 kr.

View

Min.: 1
Mult.: 1

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

Tube

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

EFM8BB10F8A-A-QFN20
Silicon Labs
1: 22,68 kr.
20In Stock

Mfr. Part No.
EFM8BB10F8A-A-QFN20

Mouser Part No
634-FM8BB10F8AAQFN20

Silicon Labs

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

Learn More

Datasheet

20In Stock

22,68 kr.

14,92 kr.

12,46 kr.

11,26 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

8 kB

512 B

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB1

AEC-Q100

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.
3.126In 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

3.126In Stock

10,29 kr.

8,73 kr.

8,65 kr.

8,58 kr.

6,61 kr.

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

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Busy Bee MCU

EFM8BB10F4I-A-QFN20
Silicon Labs
1: 13,65 kr.
244In Stock
End of Life

Mfr. Part No.
EFM8BB10F4I-A-QFN20

Mouser Part No
634-M8BB10F4IAQFN20

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

244In Stock

13,65 kr.

8,73 kr.

6,41 kr.

5,59 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

4 kB

512 B

QFN-20

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB1

Tube

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

EFM8BB21F16G-C-QFN20
Silicon Labs
1: 8,28 kr.
1.473In Stock

Mfr. Part No.
EFM8BB21F16G-C-QFN20

Mouser Part No
634-8BB21F16GCQFN20

Silicon Labs

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

Learn More

Datasheet

1.473In Stock

8,28 kr.

6,54 kr.

5,71 kr.

5,26 kr.

View

Min.: 1
Mult.: 1

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

Tube

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.
193In Stock
79.500On Order

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

193In Stock

79.500On Order

Cut Tape

8,28 kr.

6,54 kr.

5,80 kr.

5,40 kr.

Reel

4,61 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

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

EFM8BB22F16G-C-QFN28
Silicon Labs
1: 10,74 kr.
1.447In Stock

Mfr. Part No.
EFM8BB22F16G-C-QFN28

Mouser Part No
634-8BB22F16GCQFN28

Silicon Labs

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

Learn More

Datasheet

1.447In Stock

10,74 kr.

9,10 kr.

7,76 kr.

7,31 kr.

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

+ 85 C

EFM8BB2

Tube

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

EFM8BB21F16I-C-QFN20R
Silicon Labs
1: 8,88 kr.
179In Stock

Mfr. Part No.
EFM8BB21F16I-C-QFN20R

Mouser Part No
634-BB21F16ICQFN20R

Silicon Labs

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

Learn More

Datasheet

179In Stock

Cut Tape

8,88 kr.

6,99 kr.

6,21 kr.

5,79 kr.

Reel

4,95 kr.

View

MouseReel Available

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

Reel, Cut Tape, MouseReel

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

EFM8BB21F16A-C-QFN20
Silicon Labs
1: 19,69 kr.
262In Stock
2.520Expected 22/01/2027

Mfr. Part No.
EFM8BB21F16A-C-QFN20

Mouser Part No
634-EFM8BB21F16FN20

Silicon Labs

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

Learn More

Datasheet

262In Stock

2.520Expected 22/01/2027

19,69 kr.

16,19 kr.

14,92 kr.

13,50 kr.

View

Min.: 1
Mult.: 1

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

Tube

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.
4.991Expected 10/07/2026

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

4.991Expected 10/07/2026

Cut Tape

6,48 kr.

5,11 kr.

4,56 kr.

4,24 kr.

Reel

3,64 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

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

EFM8BB22F16G-C-QFN28R
Silicon Labs
1: 10,74 kr.
2.999Expected 09/06/2026

Mfr. Part No.
EFM8BB22F16G-C-QFN28R

Mouser Part No
634-8BB22F16GCQFN28R

Silicon Labs

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

Learn More

Datasheet

2.999Expected 09/06/2026

Cut Tape

10,74 kr.

9,10 kr.

8,43 kr.

7,53 kr.

Reel

6,04 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

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

+ 85 C

EFM8BB2

Reel, Cut Tape, MouseReel

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: 20,44 kr.
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

20,44 kr.

13,35 kr.

12,23 kr.

10,52 kr.

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: 28,65 kr.
1.498Expected 22/01/2027

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 22/01/2027

Cut Tape

28,65 kr.

19,02 kr.

17,23 kr.

14,70 kr.

Reel

10,59 kr.

View

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

EFM8BB10F8I-A-SOIC16R
Silicon Labs
2.500: 4,08 kr.
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F8I-A-SOIC16R

Mouser Part No
634-8BB10F8IASOIC16R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

4,08 kr.

3,96 kr.

3,94 kr.

Min.: 2.500
Mult.: 2.500

: 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

+ 125 C

EFM8BB1

Reel

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU

EFM8BB10F2A-A-QFN20
Silicon Labs
1: 13,20 kr.
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F2A-A-QFN20

Mouser Part No
634-FM8BB10F2AAQFN20

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

13,20 kr.

11,12 kr.

10,29 kr.

9,10 kr.

View

Min.: 1
Mult.: 1

CIP-51 8051

2 kB

256 B

QFN-20

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB1

AEC-Q100

Tube

Busy Bee 8-bit Microcontrollers - MCU

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