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

EFM8SB10F8G-A-CSP16
Silicon Labs
1: £1.40
1,669In Stock

Mfr. Part No.
EFM8SB10F8G-A-CSP16

Mouser Part No
634-8SB10F8G-A-CSP16

Silicon Labs

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

Learn More

Datasheet

1,669In Stock

£1.40

£1.18

£1.04

£0.934

View

Min.: 1
Mult.: 1

SMD/SMT

CSP-16

CIP-51 8051

8 kB

8 bit

12 bit

25 MHz

13 I/O

512 B

1.8 V

3.6 V

- 40 C

+ 85 C

Cut Tape

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

EFM8SB10F8G-A-CSP16R
Silicon Labs
1: £1.48
2,678In Stock
7,500Expected 07/12/2026

Mfr. Part No.
EFM8SB10F8G-A-CSP16R

Mouser Part No
634-8SB10F8GA-CSP16R

Silicon Labs

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

Datasheet

2,678In Stock

7,500Expected 07/12/2026

Cut Tape

£1.48

£1.21

£1.12

£0.995

View

Reel

£0.691

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

CSP-16

CIP-51 8051

8 kB

8 bit

12 bit

25 MHz

13 I/O

256 B

3.6 V

2.2 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

EFM8UB10F16G-C-QFN28R
Silicon Labs
1: £2.03
4,493In Stock

Mfr. Part No.
EFM8UB10F16G-C-QFN28R

Mouser Part No
634-8UB10F16GCQFN28R

Silicon Labs

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

Datasheet

4,493In Stock

Cut Tape

£2.03

£1.71

£1.50

£1.42

Reel

£0.978

View

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-28

CIP-51 8051

16 kB

8 bit

12 bit

50 MHz

22 I/O

2.25 kB

2.2 V

3.6 V

- 40 C

+ 85 C

Reel, Cut Tape

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

EFM8UB10F8G-C-QFN20
Silicon Labs
1: £1.34
2,547In Stock
5,040Expected 11/09/2026

Mfr. Part No.
EFM8UB10F8G-C-QFN20

Mouser Part No
634-8UB10F8GCQFN20

Silicon Labs

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

Datasheet

2,547In Stock

5,040Expected 11/09/2026

£1.34

£1.13

£0.995

£0.925

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

CIP-51 8051

8 kB

8 bit

12 bit

50 MHz

13 I/O

2.25 kB

2.2 V

3.6 V

- 40 C

+ 85 C

Tube

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB MCU

EFM32GG11B120F2048GQ64-B
Silicon Labs
1: £14.90
1,061In Stock

Mfr. Part No.
EFM32GG11B120F2048GQ64-B

Mouser Part No
634-B120F2048GQ64-B

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB MCU

Learn More

Datasheet

1,061In Stock

£14.90

£12.38

£11.13

£10.60

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-64

ARM Cortex M4

2.05 MB

32 bit

12 bit

72 MHz

53 I/O

512 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU

EFM32GG11B820F2048GL120-B
Silicon Labs
1: £16.76
218In Stock

Mfr. Part No.
EFM32GG11B820F2048GL120-B

Mouser Part No
634-B820F2048GL120-B

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU

Learn More

Datasheet

218In Stock

£16.76

£13.71

£12.52

£11.70

View

Min.: 1
Mult.: 1

SMD/SMT

BGA-120

ARM Cortex M4

2.05 MB

32 bit

12 bit

72 MHz

95 I/O

512 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU

EFM32GG11B820F2048GL192-B
Silicon Labs
1: £17.46
788In Stock

Mfr. Part No.
EFM32GG11B820F2048GL192-B

Mouser Part No
634-B820F2048GL192-B

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU

Learn More

Datasheet

788In Stock

£17.46

£14.15

£13.04

£12.07

View

Min.: 1
Mult.: 1

SMD/SMT

BGA-192

ARM Cortex M4

2.05 MB

32 bit

12 bit

72 MHz

144 I/O

512 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU

EFM32GG11B820F2048GQ64-B
Silicon Labs
1: £15.77
779In Stock

Mfr. Part No.
EFM32GG11B820F2048GQ64-B

Mouser Part No
634-B820F2048GQ64-B

Silicon Labs

ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU

Learn More

Datasheet

779In Stock

£15.77

£12.89

£11.79

£10.87

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-64

ARM Cortex M4

2.05 MB

32 bit

12 bit

72 MHz

47 I/O

512 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU

C8051F311-GMR
Silicon Labs
1: £9.82
685In Stock
3,000Expected 27/11/2026

Mfr. Part No.
C8051F311-GMR

Mouser Part No
634-C8051F311-GMR

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU

Datasheet

685In Stock

3,000Expected 27/11/2026

Cut Tape

£9.82

£7.70

£7.10

£6.48

View

Reel

£5.31

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-28

8051

16 kB

8 bit

10 bit

25 MHz

25 I/O

1.25 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN28 OTP available (T321-GM)

C8051F321-GM
Silicon Labs
1: £11.39
208In Stock
1,533Expected 27/11/2026

Mfr. Part No.
C8051F321-GM

Mouser Part No
634-C8051F321-GM

Silicon Labs

8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN28 OTP available (T321-GM)

Datasheet

208In Stock

1,533Expected 27/11/2026

£11.39

£9.31

£8.23

£7.81

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-28

CIP-51 8051

16 kB

8 bit

10 bit

25 MHz

21 I/O

2.3 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tube

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

C8051F411-GM
Silicon Labs
1: £10.50
1,057In Stock
1,533Expected 20/11/2026

Mfr. Part No.
C8051F411-GM

Mouser Part No
634-C8051F411-GM

Silicon Labs

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

Datasheet

1,057In Stock

1,533Expected 20/11/2026

£10.50

£8.43

£7.80

£7.20

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-28

8051

32 kB

8 bit

12 bit

50 MHz

20 I/O

2.31 kB

2 V

5.25 V

- 40 C

+ 85 C

Tube

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

EFM8BB31F16G-D-QFN32R
Silicon Labs
1: £1.40
4,177In Stock

Mfr. Part No.
EFM8BB31F16G-D-QFN32R

Mouser Part No
634-EF8BB31F16GDN32R

Silicon Labs

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

Learn More

Datasheet

4,177In Stock

Cut Tape

£1.40

£1.15

£0.995

£0.943

Reel

£0.71

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

QFN-32

CIP-51 8051

16 kB

8 bit

10 bit, 12 bit

50 MHz

29 I/O

2.3 kB

2.2 V

3.6 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

EFM8BB31F32I-D-4QFN24R
Silicon Labs
1: £2.50
1,520In Stock

Mfr. Part No.
EFM8BB31F32I-D-4QFN24R

Mouser Part No
634-EF8BB31F32ID424R

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

1,520In Stock

Cut Tape

£2.50

£1.64

£1.52

£1.32

Reel

£1.02

View

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-24

CIP-51 8051

32 kB

8 bit

10 bit, 12 bit

50 MHz

20 I/O

2.3 kB

2.2 V

3.6 V

- 40 C

+ 125 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-QFN24R
Silicon Labs
1: £2.76
2,120In Stock

Mfr. Part No.
EFM8BB31F64G-D-QFN24R

Mouser Part No
634-EF8BB31F64GDF24R

Silicon Labs

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

Learn More

Datasheet

2,120In Stock

Cut Tape

£2.76

£1.86

£1.73

£1.50

Reel

£1.16

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

+ 85 C

Reel, Cut Tape, MouseReel

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: £1.90
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

£1.90

£1.60

£1.40

£1.31

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: £3.03
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

£3.03

£2.01

£1.82

£1.55

Reel

£1.14

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: £3.27
1,599In 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

1,599In Stock

£3.27

£2.17

£1.96

£1.68

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: £5.23
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

£5.23

£3.60

£3.35

£2.94

Reel

£2.32

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: £4.25
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

£4.25

£3.54

£3.12

£2.97

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: £4.94
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

£4.94

£3.62

£3.19

£2.98

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: £0.834
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

£0.834

£0.711

£0.623

£0.572

Reel

£0.404

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

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: £3.06
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

£3.06

£2.03

£1.85

£1.57

Reel

£1.20

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-QFN24R
Silicon Labs
1: £2.60
4,091In Stock

Mfr. Part No.
EFM8LB12F64E-C-QFN24R

Mouser Part No
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

£2.60

£2.12

£1.84

£1.75

Reel

£1.37

View

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-24

CIP-51 8051

64 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

20 I/O

4.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

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: £2.72
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

£2.72

£2.28

£2.00

£1.89

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: £2.69
4,062In 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

4,062In Stock

Cut Tape

£2.69

£2.20

£1.90

£1.80

Reel

£1.36

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

Silicon Labs Microcontrollers - MCU

Types of Microcontrollers - MCU

Customer Service Office

Company

Resources

Support

BGA-112
BGA-120
BGA-125
BGA-136
BGA-152
BGA-192
BGA-48
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

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