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EFM8 8-bit Microcontrollers - MCU

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Tradename = EFM8

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Part #

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

EFM8LB12F32E-C-QSOP24
Silicon Labs
1: $4.26
75In Stock
End of Life

Mfr. Part No.
EFM8LB12F32E-C-QSOP24

Mouser Part No
634-LB12F32ECQSOP24

End of Life

Silicon Labs

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

Learn More

Datasheet

75In Stock

$4.26

$2.82

$2.59

$2.23

View

Min.: 1
Mult.: 1

CIP-51 8051

32 kB

2.25 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

EFM8LB11F32ES0-C-QFN24R
Silicon Labs
1: $3.84
1,499Expected 06/03/2026

Mfr. Part No.
EFM8LB11F32ES0-C-QFN24R

Mouser Part No
634-LB11F32ES0CFN24R

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

1,499Expected 06/03/2026

Cut Tape

$3.84

$2.60

$2.41

$2.09

Reel

$1.33

View

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

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: $1.03
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB20F16G-B-QFN24R

Mouser Part No
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

$1.03

$1.01

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

Reel: 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-QFP32R
Silicon Labs
500: $1.70
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB20F32G-B-QFP32R

Mouser Part No
634-EFM8SB32GBQFP32R

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

Reel

$1.70

$1.63

$1.60

$1.58

Min.: 500
Mult.: 500

Reel: 500

EFM8SB

Reel

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F64G-B-QFN32R
Silicon Labs
1,500: $1.62
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB20F64G-B-QFN32R

Mouser Part No
634-EFM8SB64GBQFN32R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.62

$1.61

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

Reel: 1,500

EFM8SB

Reel

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F64G-B-QFP32R
Silicon Labs
500: $2.13
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB20F64G-B-QFP32R

Mouser Part No
634-EFM8SB64GBQFP32R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$2.13

$1.97

$1.95

$1.93

Min.: 500
Mult.: 500

Reel: 500

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: $3.42
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB20F32G-B-QFN24

Mouser Part No
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

$3.42

$2.19

$1.52

$1.38

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

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

EFM8UB20F32G-B-QFP32R
Silicon Labs
500: $2.33
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8UB20F32G-B-QFP32R

Mouser Part No
634-EFM8UB32GBQFP32R

Silicon Labs

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$2.33

$2.12

$2.09

$2.07

Min.: 500
Mult.: 500

Reel: 500

EFM8UB2

Reel

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

EFM8UB20F64G-B-QFP32R
Silicon Labs
500: $2.54
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8UB20F64G-B-QFP32R

Mouser Part No
634-EFM8UB64GBQFP32R

Silicon Labs

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$2.54

$2.32

$2.28

Min.: 500
Mult.: 500

Reel: 500

EFM8UB2

Reel

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

EFM8SB10F8A-A-QFN20
Silicon Labs
2,100: $1.47
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB10F8A-A-QFN20

Mouser Part No
634-FM8SB10F8AAQFN20

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.47

Min.: 2,100
Mult.: 2,100

EFM8SB

AEC-Q100

Tube

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

EFM8LB10F16E-C-QFN24R
Silicon Labs
1,500: $1.08
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16E-C-QFN24R

Mouser Part No
634-LB10F16ECQFN24R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.08

$1.06

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

Reel: 1,500

CIP-51 8051

16 kB

1.25 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

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

EFM8LB10F16E-C-QFN32R
Silicon Labs
2,500: $1.07
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16E-C-QFN32R

Mouser Part No
634-LB10F16ECQFN32R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.07

$1.06

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

Reel: 2,500

CIP-51 8051

16 kB

1.25 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

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

EFM8LB10F16E-C-QFP32R
Silicon Labs
1: $3.84
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16E-C-QFP32R

Mouser Part No
634-LB10F16ECQFP32R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$3.84

$2.60

$2.41

$2.09

Reel

$1.71

View

Min.: 1
Mult.: 1

Reel: 500

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

Reel, Cut Tape

8-bit Microcontrollers - MCU

EFM8LB10F16ES0-C-QFN24R
Silicon Labs
1,500: $1.08
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16ES0-C-QFN24R

Mouser Part No
634-LB10F16ES0CFN24R

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.08

$1.06

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

Reel: 1,500

CIP-51 8051

16 kB

1.25 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

8-bit Microcontrollers - MCU

EFM8LB10F16ES0-C-QFN32R
Silicon Labs
2,500: $1.07
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16ES0-C-QFN32R

Mouser Part No
634-LB10F16ES0CFN32R

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.07

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

Reel: 2,500

CIP-51 8051

16 kB

1.25 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

8-bit Microcontrollers - MCU

EFM8LB10F16ES0-C-QFN24
Silicon Labs
2,520: $1.04
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16ES0-C-QFN24

Mouser Part No
634-LB10F16ES0CQFN24

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.04

$1.03

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

CIP-51 8051

16 kB

1.25 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

EFM8LB10F16ES0-C-QFN32
Silicon Labs
2,450: $1.07
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16ES0-C-QFN32

Mouser Part No
634-LB10F16ES0CQFN32

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.07

Min.: 2,450
Mult.: 2,450

CIP-51 8051

16 kB

1.25 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

EFM8LB10F16ES1-C-QFN32R
Silicon Labs
2,500: $1.07
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16ES1-C-QFN32R

Mouser Part No
634-LB10F16ES1CFN32R

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.07

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

Reel: 2,500

CIP-51 8051

16 kB

1.25 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

8-bit Microcontrollers - MCU

EFM8LB10F16ES1-C-QFN24
Silicon Labs
2,520: $1.04
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16ES1-C-QFN24

Mouser Part No
634-LB10F16ES1CQFN24

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.04

$1.03

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

CIP-51 8051

16 kB

1.25 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

EFM8LB10F16ES1-C-QFN32
Silicon Labs
2,450: $1.07
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB10F16ES1-C-QFN32

Mouser Part No
634-LB10F16ES1CQFN32

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.07

Min.: 2,450
Mult.: 2,450

CIP-51 8051

16 kB

1.25 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 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB11F16E-C-QFN24R
Silicon Labs
1,500: $1.16
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB11F16E-C-QFN24R

Mouser Part No
634-LB11F16ECQFN24R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.16

$1.15

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

Reel: 1,500

CIP-51 8051

16 kB

1.25 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

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

EFM8LB11F16E-C-QFN32
Silicon Labs
2,450: $1.17
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB11F16E-C-QFN32

Mouser Part No
634-LB11F16ECQFN32

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.17

$1.16

Min.: 2,450
Mult.: 2,450

CIP-51 8051

16 kB

1.25 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 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB11F16E-C-QFN32R
Silicon Labs
2,500: $1.17
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB11F16E-C-QFN32R

Mouser Part No
634-LB11F16ECQFN32R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.17

$1.16

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

Reel: 2,500

CIP-51 8051

16 kB

1.25 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

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

EFM8LB11F16E-C-QFP32R
Silicon Labs
500: $1.75
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB11F16E-C-QFP32R

Mouser Part No
634-LB11F16ECQFP32R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.75

$1.60

$1.57

$1.55

Min.: 500
Mult.: 500

Reel: 500

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

Reel

8-bit Microcontrollers - MCU

EFM8LB11F16ES0-C-QFN32R
Silicon Labs
2,500: $1.17
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8LB11F16ES0-C-QFN32R

Mouser Part No
634-LB11F16ES0CFN32R

Silicon Labs

8-bit Microcontrollers - MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.17

$1.16

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

Reel: 2,500

CIP-51 8051

16 kB

1.25 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

EFM8 8-bit Microcontrollers - MCU

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