.hide-partial { max-height: none; } .show-more { display: none; }

EFM8 8-bit Microcontrollers - MCU

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 105

Applied Filters:

Tradename = EFM8

Core

Program Memory Size

Data RAM Size

Package / Case

Maximum Clock Frequency

ADC Resolution

Number of I/Os

Supply Voltage - Min

Supply Voltage - Max

Mounting Style

Data Bus Width

Minimum Operating Temperature

Maximum Operating Temperature

Series

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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: $3.639
4.091In Stock

Mfr. Part #
EFM8LB12F64E-C-QFN24R

Mouser Part #
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

4.091In Stock

Cut Tape

$3.639

$2.976

$2.745

$2.440

Reel

$1.883

View

Min.: 1
Mult.: 1

: 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: $3.460
2.603In Stock

Mfr. Part #
EFM8LB12F64E-C-QFN32

Mouser Part #
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

2.603In Stock

$3.460

$2.892

$2.682

$2.408

View

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-QFN32R
Silicon Labs
1: $3.765
4.062In Stock

Mfr. Part #
EFM8LB12F64E-C-QFN32R

Mouser Part #
634-LB12F64ECQFN32R

Silicon Labs

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

Learn More

Datasheet

4.062In Stock

Cut Tape

$3.765

$3.081

$2.840

$2.524

Reel

$1.904

View

Min.: 1
Mult.: 1

: 2.500

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

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F16G-B-QFN24
Silicon Labs
1: $2.124
364In Stock

Mfr. Part #
EFM8SB20F16G-B-QFN24

Mouser Part #
634-EFM8SBF16GBQFN24

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

364In Stock

$2.124

$1.798

$1.504

$1.420

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

4.25 kB

QFN-24

25 MHz

10 bit

16 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: $4.017
163In Stock

Mfr. Part #
EFM8UB20F64G-B-QFN32R

Mouser Part #
634-EFM8UB64GBQFN32R

Silicon Labs

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

Datasheet

163In Stock

Cut Tape

$4.017

$3.281

$3.018

$2.682

Reel

$2.103

View

Min.: 1
Mult.: 1

: 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 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

EFM8UB20F64G-B-QFN32
Silicon Labs
1: $3.691
325In Stock

Mfr. Part #
EFM8UB20F64G-B-QFN32

Mouser Part #
634-EFM8UBF64GBQFN32

Silicon Labs

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

Datasheet

325In Stock

$3.691

$3.081

$2.629

$2.503

View

Min.: 1
Mult.: 1

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

Tube

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

EFM8UB11F16G-C-QSOP24
Silicon Labs
1: $2.819
122In Stock
End of Life

Mfr. Part #
EFM8UB11F16G-C-QSOP24

Mouser Part #
634-8UB11F16GCQSOP24

End of Life

Silicon Labs

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

Datasheet

122In Stock

$2.819

$2.377

$2.061

$1.956

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

2.25 kB

QSOP-24

50 MHz

12 bit

17 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB

Tube

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

EFM8UB10F16G-C-QFN20
Silicon Labs
1: $3.260
281In Stock

Mfr. Part #
EFM8UB10F16G-C-QFN20

Mouser Part #
634-8UB10F16GCQFN20

Silicon Labs

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

Datasheet

281In Stock

$3.260

$2.366

$2.188

$1.914

View

Min.: 1
Mult.: 1

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

Tube

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

EFM8UB10F16G-C-QFN20R
Silicon Labs
1: $3.250
3.194In Stock
49.500On Order

Mfr. Part #
EFM8UB10F16G-C-QFN20R

Mouser Part #
634-8UB10F16GCQFN20R

Silicon Labs

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

Datasheet

3.194In Stock

49.500On Order

Cut Tape

$3.250

$2.356

$2.177

$1.925

View

Reel

$1.357

MouseReel Available

Min.: 1
Mult.: 1

: 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 16 kB flash 2 kB RAM 8-bit Universal Bee MCU

EFM8UB10F16G-C-QFN28
Silicon Labs
1: $2.850
473In Stock

Mfr. Part #
EFM8UB10F16G-C-QFN28

Mouser Part #
634-8UB10F16GCQFN28

Silicon Labs

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

Datasheet

473In Stock

$2.850

$2.398

$2.040

$1.935

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

2.25 kB

QFN-28

50 MHz

12 bit

22 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB

Tube

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB10F16E-C-QFP32
Silicon Labs
1: $4.028
134In Stock

Mfr. Part #
EFM8LB10F16E-C-QFP32

Mouser Part #
634-LB10F16ECQFP32

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

134In Stock

$4.028

$2.724

$2.524

$2.188

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

1.25 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 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB11F16E-C-QFP32
Silicon Labs
1: $4.238
36In Stock

Mfr. Part #
EFM8LB11F16E-C-QFP32

Mouser Part #
634-LB11F16ECQFP32

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

36In Stock

$4.238

$2.808

$2.556

$2.166

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

1.25 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 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

EFM8LB12F64E-C-QFP32R
Silicon Labs
1: $4.217
237In Stock
500Expected 1/22/2027

Mfr. Part #
EFM8LB12F64E-C-QFP32R

Mouser Part #
634-LB12F64ECQFP32R

Silicon Labs

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

Learn More

Datasheet

237In Stock

500Expected 1/22/2027

Cut Tape

$4.217

$3.439

$3.166

$2.819

Reel

$2.419

View

Min.: 1
Mult.: 1

: 500

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

Reel, Cut Tape

8-bit Microcontrollers - MCU

EFM8LB12F64ES1-C-QFN32
Silicon Labs
1: $3.460
279In Stock

Mfr. Part #
EFM8LB12F64ES1-C-QFN32

Mouser Part #
634-LB12F64ES1CQFN32

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

279In Stock

$3.460

$2.892

$2.682

$2.408

View

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

EFM8SB20F32G-B-QFN32R
Silicon Labs
1: $4.112
81In Stock
End of Life

Mfr. Part #
EFM8SB20F32G-B-QFN32R

Mouser Part #
634-EFM8SB32GBQFN32R

End of Life

Silicon Labs

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

Learn More

Datasheet

81In Stock

Cut Tape

$4.112

$2.787

$2.577

$2.240

Reel

$1.504

View

Min.: 1
Mult.: 1

: 1.500

CIP-51 8051

32 kB

4.25 kB

25 MHz

10 bit

24 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8SB

Reel, Cut Tape

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

EFM8SB20F32G-B-QFN32
Silicon Labs
1: $2.566
797In Stock
End of Life

Mfr. Part #
EFM8SB20F32G-B-QFN32

Mouser Part #
634-EFM8SBF32GBQFN32

End of Life

Silicon Labs

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

Learn More

Datasheet

797In Stock

$2.566

$2.156

$1.830

$1.735

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-QFP48R
Silicon Labs
1: $4.827
63In Stock
End of Life

Mfr. Part #
EFM8UB20F64G-B-QFP48R

Mouser Part #
634-EFM8UB64GBQFP48R

End of Life

Silicon Labs

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

Datasheet

63In Stock

Cut Tape

$4.827

$4.017

$3.481

$3.407

Reel

$2.745

MouseReel Available

Min.: 1
Mult.: 1

: 500

CIP-51 8051

64 kB

4.25 kB

QFP-48

48 MHz

10 bit

40 I/O

2.65 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB2

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB10F16E-C-QSOP24
Silicon Labs
1: $3.555
53In Stock
End of Life

Mfr. Part #
EFM8LB10F16E-C-QSOP24

Mouser Part #
634-LB10F16ECQSOP24

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

Datasheet

53In Stock

$3.555

$2.345

$2.166

$1.883

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

1.25 kB

QSOP-24

72 MHz

10 bit/12 bit/14 bit

21 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

EFM8LB1

Tube

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB11F16E-C-QSOP24
Silicon Labs
1: $3.744
52In Stock
End of Life

Mfr. Part #
EFM8LB11F16E-C-QSOP24

Mouser Part #
634-LB11F16ECQSOP24

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

Datasheet

52In Stock

$3.744

$2.535

$2.345

$2.040

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

1.25 kB

QSOP-24

72 MHz

10 bit/12 bit/14 bit

21 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

EFM8LB1

Tube

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

EFM8LB11F32E-C-QFN24R
Silicon Labs
1: $4.028
12In Stock

Mfr. Part #
EFM8LB11F32E-C-QFN24R

Mouser Part #
634-LB11F32ECQFN24R

Silicon Labs

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

Learn More

Datasheet

12In Stock

Cut Tape

$4.028

$2.724

$2.524

$2.188

Reel

$1.504

View

Min.: 1
Mult.: 1

: 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

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

EFM8LB12F32E-C-QFN24
Silicon Labs
1: $4.280
257In Stock

Mfr. Part #
EFM8LB12F32E-C-QFN24

Mouser Part #
634-LB12F32ECQFN24

Silicon Labs

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

Learn More

Datasheet

257In Stock

$4.280

$2.829

$2.577

$2.188

View

Min.: 1
Mult.: 1

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

Tube

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: $3.881
9.409On Order

Mfr. Part #
EFM8LB12F64E-C-QFP32

Mouser Part #
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

9.409On Order

$3.881

$3.239

$3.008

$2.703

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

EFM8LB12F32E-C-QFP32
Silicon Labs
1: $5.469
1.043Expected 10/16/2026

Mfr. Part #
EFM8LB12F32E-C-QFP32

Mouser Part #
634-LB12F32ECQFP32

Silicon Labs

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

Learn More

Datasheet

1.043Expected 10/16/2026

$5.469

$3.618

$3.292

$2.797

View

Min.: 1
Mult.: 1

CIP-51 8051

32 kB

2.25 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 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F16G-B-QFN24R
Silicon Labs
1.500: $1.188
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM8SB20F16G-B-QFN24R

Mouser Part #
634-EFM8SB16GBQFN24R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.188

$1.136

Min.: 1.500
Mult.: 1.500

: 1.500

CIP-51 8051

16 kB

4.25 kB

25 MHz

10 bit

16 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8SB

Reel

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

EFM8SB20F32G-B-QFN24
Silicon Labs
1: $2.324
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM8SB20F32G-B-QFN24

Mouser Part #
634-EFM8SBF32GBQFN24

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$2.324

$1.956

$1.630

$1.557

View

Min.: 1
Mult.: 1

CIP-51 8051

32 kB

4.25 kB

QFN-24

25 MHz

10 bit

16 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8SB

Tube

EFM8 8-bit Microcontrollers - MCU

Customer Service Office

Company

Resources

Support