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Silicon Labs Microcontrollers - MCU

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Types of Microcontrollers - MCU

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Part #

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

EFM8BB31F64G-D-QFN32R
Silicon Labs
1: $2.67
1,398In Stock

Mfr. Part No.
EFM8BB31F64G-D-QFN32R

Mouser Part No
634-EF8BB31F64GDN32R

Silicon Labs

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

Learn More

Datasheet

1,398In Stock

Cut Tape

$2.67

$1.98

$1.81

$1.62

Reel

$1.39

View

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

QFN-32

CIP-51 8051

64 kB

8 bit

10 bit, 12 bit

50 MHz

29 I/O

4.35 kB

2.2 V

3.6 V

- 40 C

+ 85 C

Reel, Cut Tape

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

EFM8BB31F64G-D-QFN24
Silicon Labs
1: $2.53
5,987In Stock

Mfr. Part No.
EFM8BB31F64G-D-QFN24

Mouser Part No
634-EF8BB31F64GDQF24

Silicon Labs

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

Learn More

Datasheet

5,987In Stock

$2.53

$2.13

$1.86

$1.74

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-24

CIP-51 8051

64 kB

8 bit

10 bit, 12 bit

50 MHz

20 I/O

4.35 kB

2.2 V

3.6 V

- 40 C

+ 85 C

Tube

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: $2.85
995In Stock
1,500Expected 30/11/2026

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

995In Stock

1,500Expected 30/11/2026

Cut Tape

$2.85

$2.12

$1.94

$1.74

Reel

$1.57

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-24

CIP-51 8051

64 kB

8 bit

10 bit, 12 bit

50 MHz

20 I/O

4.35 kB

2.2 V

3.6 V

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

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

EFM8BB31F64I-D-QFN32
Silicon Labs
1: $4.35
1,309In Stock

Mfr. Part No.
EFM8BB31F64I-D-QFN32

Mouser Part No
634-EF8BB31F64IDQN32

Silicon Labs

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

Learn More

Datasheet

1,309In Stock

$4.35

$2.88

$2.62

$2.23

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

CIP-51 8051

64 kB

8 bit

10 bit, 12 bit

50 MHz

29 I/O

4.35 kB

2.2 V

3.6 V

- 40 C

+ 125 C

Tray

ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU

EFM32TG11B120F128GQ48-BR
Silicon Labs
1: $5.18
860In Stock

Mfr. Part No.
EFM32TG11B120F128GQ48-BR

Mouser Part No
634-EFM32TG128GQ48BR

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU

Learn More

Datasheet

860In Stock

Cut Tape

$5.18

$3.90

$3.59

$3.24

Reel

$2.94

View

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

QFP-48

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

37 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel, Cut Tape

ARM Microcontrollers - MCU Tiny Gecko MCU IC

EFM32TG222F32-D-QFP48
Silicon Labs
1: $5.66
3,138In Stock

Mfr. Part No.
EFM32TG222F32-D-QFP48

Mouser Part No
634-EFM32TG222F32-D

Silicon Labs

ARM Microcontrollers - MCU Tiny Gecko MCU IC

Learn More

Datasheet

3,138In Stock

$5.66

$4.71

$4.15

$3.95

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-48

ARM Cortex M3

32 kB

32 bit

12 bit

32 MHz

37 I/O

4 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU

EFM32TG11B140F64GQ48-B
Silicon Labs
1: $6.58
1,021In Stock

Mfr. Part No.
EFM32TG11B140F64GQ48-B

Mouser Part No
634-EFM32TG64GQ48-B

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU

Learn More

Datasheet

1,021In Stock

$6.58

$4.83

$4.24

$3.96

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-48

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

37 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB51F16I-C-QFN20R
Silicon Labs
1: $1.11
12,398In Stock

Mfr. Part No.
EFM8BB51F16I-C-QFN20R

Mouser Part No
634-EFM851F16IQFN20R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

Learn More

Datasheet

12,398In Stock

Cut Tape

$1.11

$0.946

$0.83

$0.762

Reel

$0.538

View

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

QFN-20

16 kB

16 I/O

1.28 kB

1.8 V

5.5 V

- 40 C

+ 85 C

Reel, Cut Tape

ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU

EFM32HG210F64G-C-QFN32R
Silicon Labs
1: $5.09
1,917In Stock

Mfr. Part No.
EFM32HG210F64G-C-QFN32R

Mouser Part No
634-HG210F64GCQFN32R

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU

Learn More

Datasheet

1,917In Stock

Cut Tape

$5.09

$3.84

$3.52

$3.18

View

Reel

$2.75

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

QFN-32

ARM Cortex M0+

64 kB

32 bit

12 bit

25 MHz

22 I/O

8 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel, Cut Tape

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: $2.88
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

$2.88

$2.15

$1.96

$1.76

Reel

$1.59

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-24

CIP-51 8051

32 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

20 I/O

2.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

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-QFN32
Silicon Labs
1: $3.62
2,603In 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

2,603In Stock

$3.62

$3.03

$2.66

$2.52

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

CIP-51 8051

64 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

29 I/O

4.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

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: $3.58
4,042In Stock

Mfr. Part No.
EFM8LB12F64E-C-QFN32R

Mouser Part No
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

4,042In Stock

Cut Tape

$3.58

$2.93

$2.54

$2.40

Reel

$1.87

View

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

QFN-32

CIP-51 8051

64 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

29 I/O

4.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 1024 kB USB LCD MCU

EFM32GG12B410F1024GQ64-A
Silicon Labs
1: $13.36
2,454In Stock

Mfr. Part No.
EFM32GG12B410F1024GQ64-A

Mouser Part No
634-2B410F1024GQ64A

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 1024 kB USB LCD MCU

Learn More

Datasheet

2,454In Stock

$13.36

$10.70

$9.72

$8.98

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-64

ARM Cortex M4

1.02 MB

32 bit

2 x 12 bit

72 MHz

50 I/O

192 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES

EFM32G210F128G-E-QFN32R
Silicon Labs
1: $7.07
28In Stock
3,000Expected 27/11/2026

Mfr. Part No.
EFM32G210F128G-E-QFN32R

Mouser Part No
634-32G210128GEFN32R

Silicon Labs

ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES

Datasheet

28In Stock

3,000Expected 27/11/2026

Cut Tape

$7.07

$5.57

$5.01

$4.65

View

Reel

$4.05

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

QFN-32

ARM Cortex M3

128 kB

32 bit

12 bit

32 MHz

24 I/O

16 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES

EFM32G232F128G-E-QFP64
Silicon Labs
1: $7.63
225In Stock

Mfr. Part No.
EFM32G232F128G-E-QFP64

Mouser Part No
634-32G232F128GEFP64

Silicon Labs

ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES

Datasheet

225In Stock

$7.63

$5.99

$5.51

$5.36

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

ARM Cortex M3

128 kB

32 bit

12 bit

32 MHz

53 I/O

16 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES

EFM32G280F128G-E-QFP100
Silicon Labs
1: $8.71
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32G280F128G-E-QFP100

Mouser Part No
634-32G280128GEFP100

Silicon Labs

ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES

Datasheet

Non-Stocked Lead-Time 12 Weeks

$8.71

$6.73

$6.18

$5.75

View

Min.: 1
Mult.: 1

SMD/SMT

LQFP-100

ARM Cortex M3

128 kB

32 bit

12 bit

32 MHz

86 I/O

16 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x40 LCD, AES

EFM32G880F128G-E-QFP100
Silicon Labs
1: $9.29
24In Stock

Mfr. Part No.
EFM32G880F128G-E-QFP100

Mouser Part No
634-32G880F128EFP100

Silicon Labs

ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x40 LCD, AES

Datasheet

24In Stock

$9.29

$7.19

$6.61

$6.31

View

Min.: 1
Mult.: 1

SMD/SMT

LQFP-100

ARM Cortex M3

128 kB

32 bit

12 bit

32 MHz

86 I/O

16 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU 1024k Flash, 128k RAM, AES

EFM32GG280F1024G-E-QFP100R
Silicon Labs
1: $19.11
22In Stock

Mfr. Part No.
EFM32GG280F1024G-E-QFP100R

Mouser Part No
634-32GG280F1024-E-T

Silicon Labs

ARM Microcontrollers - MCU 1024k Flash, 128k RAM, AES

Learn More

Datasheet

22In Stock

Cut Tape

$19.11

$15.35

$14.32

$13.18

View

Reel

$12.12

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

LQFP-100

ARM Cortex M3

1.02 MB

32 bit

12 bit

48 MHz

85 I/O

128 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel, Cut Tape

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: $1.11
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

$1.11

$0.904

$0.805

$0.79

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

CIP-51 8051

4 kB

8 bit

12 bit

25 MHz

16 I/O

512 B

2.2 V

3.6 V

- 40 C

+ 85 C

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: $1.16
1,235In 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

1,235In Stock

$1.16

$0.823

$0.797

$0.723

View

Min.: 1
Mult.: 1

SMD/SMT

SOIC-16

CIP-51 8051

8 kB

8 bit

12 bit

25 MHz

13 I/O

512 B

2.2 V

3.6 V

- 40 C

+ 85 C

Tube

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

EFM8SB10F4G-A-QFN20
Silicon Labs
1: $2.48
2In Stock

Mfr. Part No.
EFM8SB10F4G-A-QFN20

Mouser Part No
634-8SB10F4GAQF20

Silicon Labs

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

Learn More

Datasheet

2In Stock

$2.48

$1.16

$1.08

$1.03

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

CIP-51 8051

4 kB

8 bit

12 bit

25 MHz

16 I/O

512 B

1.8 V

3.6 V

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU

C8051F340-GQ
Silicon Labs
1: $24.82
9In Stock
2,500Expected 06/10/2026

Mfr. Part No.
C8051F340-GQ

Mouser Part No
634-C8051F340-GQ

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU

Datasheet

9In Stock

2,500Expected 06/10/2026

$24.82

$19.53

$18.55

$16.89

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-48

8051

64 kB

8 bit

10 bit

48 MHz

40 I/O

4.25 kB

2.7 V

5.25 V

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU

C8051F351-GMR
Silicon Labs
1: $15.63
97In Stock

Mfr. Part No.
C8051F351-GMR

Mouser Part No
634-C8051F351-GMR

Silicon Labs

8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU

Datasheet

97In Stock

Cut Tape

$15.63

$12.46

$11.31

$10.58

View

Reel

$9.26

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-28

8051

8 kB

8 bit

24 bit

50 MHz

17 I/O

768 B

2.7 V

3.6 V

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU USB-Flash-64k-ADC-QFN32 OTP available (T626-GM)

C8051F381-GMR
Silicon Labs
1: $7.20
90In Stock

Mfr. Part No.
C8051F381-GMR

Mouser Part No
634-C8051F381-GMR

Silicon Labs

8-bit Microcontrollers - MCU USB-Flash-64k-ADC-QFN32 OTP available (T626-GM)

Datasheet

90In Stock

Cut Tape

$7.20

$5.68

$5.10

$4.74

View

Reel

$4.18

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-32

8051

64 kB

8 bit

10 bit

48 MHz

25 I/O

4.25 kB

2.7 V

5.25 V

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU

C8051F387-GM
Silicon Labs
1: $5.83
308In Stock

Mfr. Part No.
C8051F387-GM

Mouser Part No
634-C8051F387-GM

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU

Learn More

Datasheet

308In Stock

$5.83

$4.84

$4.15

$3.96

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

32 kB

8 bit

48 MHz

25 I/O

2.3 kB

2.7 V

5.25 V

- 40 C

+ 85 C

Tube

Silicon Labs Microcontrollers - MCU

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BGA-112
BGA-120
BGA-125
BGA-136
BGA-152
BGA-192
CSP-16
CSP-81
LGA-92
LQFP-100
LQFP-32
PQFP-48
QFN-11
QFN-12
QFN-16
QFN-20
QFN-24
QFN-28
QFN-32
QFN-40

6 I/O
8 I/O
9 I/O
12 I/O
13 I/O
15 I/O
16 I/O
17 I/O
18 I/O
20 I/O
21 I/O
22 I/O
24 I/O
25 I/O
26 I/O
28 I/O
29 I/O
32 I/O
33 I/O
34 I/O

128 B
256 B
512 B
768 B
1 kB
1.25 kB
1.28 kB
1.54 kB
2 kB
2.25 kB
2.3 kB
2.31 kB
4 kB
4.25 kB
4.35 kB
8 kB
8.25 kB
16 kB
32 kB
64 kB