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EFM8BB1 Series 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: £0.691
81,996In 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

81,996In Stock

Cut Tape

£0.691

£0.585

£0.48

£0.449

View

Reel

£0.39

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

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

EFM8BB10F2G-A-QFN20R
Silicon Labs
1: £0.48
25,501In 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

25,501In Stock

Cut Tape

£0.48

£0.426

£0.386

£0.349

View

Reel

£0.283

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

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

EFM8BB10F2G-A-QFN20
Silicon Labs
1: £0.473
17,595In 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

17,595In Stock

£0.473

£0.413

£0.388

£0.347

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

EFM8BB10F4G-A-QFN20R
Silicon Labs
1: £0.736
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

£0.736

£0.629

£0.584

£0.521

Reel

£0.412

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: £0.555
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

£0.555

£0.479

£0.446

£0.392

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-QFN20
Silicon Labs
1: £0.841
2,743In 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

2,743In Stock

£0.841

£0.717

£0.667

£0.587

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

EFM8BB10F8G-A-SOIC16R
Silicon Labs
1: £0.759
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

£0.759

£0.644

£0.598

£0.533

Reel

£0.402

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

EFM8BB10F4G-A-QFN20
Silicon Labs
1: £0.646
243In 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

243In Stock

£0.646

£0.555

£0.516

£0.499

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: £0.759
151In 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

151In Stock

£0.759

£0.644

£0.598

£0.526

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: £0.759
1,491In Stock

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

1,491In Stock

£0.759

£0.644

£0.567

£0.519

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

EFM8BB10F8I-A-SOIC16
Silicon Labs
1: £0.841
1,289In Stock
1,008Expected 03/04/2026

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

1,289In Stock

1,008Expected 03/04/2026

£0.841

£0.717

£0.631

£0.629

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 4 kB flash 0.5 kB RAM 8-bit Busy Bee MCU

EFM8BB10F4A-A-QFN20
Silicon Labs
1: £1.86
120In Stock

Mfr. Part No.
EFM8BB10F4A-A-QFN20

Mouser Part No
634-FM8BB10F4AAQFN20

Silicon Labs

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

Learn More

Datasheet

120In Stock

£1.86

£1.56

£1.45

£1.27

View

Min.: 1
Mult.: 1

CIP-51 8051

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

EFM8BB10F8A-A-QFN20
Silicon Labs
1: £2.65
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

£2.65

£1.75

£1.43

£1.30

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

EFM8BB10F4I-A-QFN20
Silicon Labs
1: £1.60
244In Stock

Mfr. Part No.
EFM8BB10F4I-A-QFN20

Mouser Part No
634-M8BB10F4IAQFN20

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

£1.60

£1.02

£0.917

£0.75

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

EFM8BB10F8I-A-SOIC16R
Silicon Labs
2,500: £0.478
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

£0.478

£0.461

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

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

+ 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
2,520: £0.882
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

£0.882

£0.849

Min.: 2,520
Mult.: 2,520

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

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

EFM8BB10F2A-A-QFN20R
Silicon Labs
1,500: £0.908
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F2A-A-QFN20R

Mouser Part No
634-M8BB10F2AAQFN20R

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

Reel

£0.908

£0.89

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

Reel: 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

+ 125 C

EFM8BB1

AEC-Q100

Reel

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

EFM8BB10F2I-A-QFN20R
Silicon Labs
1: £1.23
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F2I-A-QFN20R

Mouser Part No
634-M8BB10F2IAQFN20R

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

Cut Tape

£1.23

£0.788

£0.70

£0.576

Reel

£0.375

View

Min.: 1
Mult.: 1

Reel: 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

+ 125 C

EFM8BB1

Reel, Cut Tape

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

EFM8BB10F4A-A-QFN20R
Silicon Labs
1,500: £0.917
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F4A-A-QFN20R

Mouser Part No
634-M8BB10F4AAQFN20R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.917

£0.899

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

Reel: 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

+ 125 C

EFM8BB1

AEC-Q100

Reel

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

EFM8BB10F4I-A-QFN20R
Silicon Labs
1,500: £0.498
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F4I-A-QFN20R

Mouser Part No
634-M8BB10F4IAQFN20R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.498

£0.485

£0.461

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

Reel: 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

+ 125 C

EFM8BB1

Reel

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

EFM8BB10F8A-A-QFN20R
Silicon Labs
1,500: £0.925
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F8A-A-QFN20R

Mouser Part No
634-M8BB10F8AAQFN20R

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

£0.925

£0.917

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

Reel: 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

+ 125 C

EFM8BB1

AEC-Q100

Reel

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

EFM8BB10F8I-A-QFN20R
Silicon Labs
1,500: £0.518
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F8I-A-QFN20R

Mouser Part No
634-M8BB10F8IAQFN20R

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

£0.518

£0.506

£0.485

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

Reel: 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

+ 125 C

EFM8BB1

Reel

EFM8BB1 Series 8-bit Microcontrollers - MCU

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