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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 8kB/768B RAM, QFN20 OTP available (T631-GM)

C8051F331-GMR
Silicon Labs
1: £6.77
1,500Expected 16/10/2026
End of Life

Mfr. Part No.
C8051F331-GMR

Mouser Part No
634-C8051F331-GMR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)

Datasheet

1,500Expected 16/10/2026

Cut Tape

£6.77

£5.25

£4.86

£4.65

Reel

£4.65

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-20

8051

8 kB

8 bit

No ADC

25 MHz

17 I/O

768 B

2.7 V

3.6 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU

C8051F505-IQ
Silicon Labs
1: £8.33
832Expected 16/07/2027
End of Life

Mfr. Part No.
C8051F505-IQ

Mouser Part No
634-C8051F505-IQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU

Datasheet

832Expected 16/07/2027

£8.33

£6.64

£6.14

£6.02

Min.: 1
Mult.: 1

SMD/SMT

QFP-48

8051

32 kB

8 bit

12 bit

50 MHz

40 I/O

4.25 kB

1.8 V

5.25 V

- 40 C

+ 125 C

AEC-Q100

Tray

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU

C8051F531-C-IT
Silicon Labs
1: £5.45
1,551Expected 01/01/2027
End of Life

Mfr. Part No.
C8051F531-C-IT

Mouser Part No
634-C8051F531-C-IT

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU

Datasheet

1,551Expected 01/01/2027

£5.45

£4.33

£3.92

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

8051

8 kB

8 bit

12 bit

25 MHz

16 I/O

256 B

2 V

5.25 V

- 40 C

+ 125 C

AEC-Q100

Tube

8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU

C8051F580-IM
Silicon Labs
1: £12.06
810Expected 29/01/2027
End of Life

Mfr. Part No.
C8051F580-IM

Mouser Part No
634-C8051F580-IM

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU

Learn More

Datasheet

810Expected 29/01/2027

£12.06

£10.62

£9.36

£8.28

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

8051

128 kB

8 bit

12 bit

24 MHz

40 I/O

8.25 kB

1.8 V

5.25 V

- 40 C

+ 125 C

AEC-Q100

Tube

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

EFM8UB10F16G-C-QFN28
Silicon Labs
1: £2.03
526Expected 07/05/2027

Mfr. Part No.
EFM8UB10F16G-C-QFN28

Mouser Part No
634-8UB10F16GCQFN28

Silicon Labs

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

Datasheet

526Expected 07/05/2027

£2.03

£1.71

£1.46

£1.38

£1.27

Min.: 1
Mult.: 1

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

Tube

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB52F32G-C-TSSOP20
Silicon Labs
1: £0.995
197Expected 17/09/2027

Mfr. Part No.
EFM8BB52F32G-C-TSSOP20

Mouser Part No
634-EFM852F32GCTOP20

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU

Learn More

Datasheet

197Expected 17/09/2027

£0.995

£0.759

£0.677

£0.57

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

16 kB

16 I/O

1.28 kB

1.8 V

5.5 V

- 40 C

+ 85 C

Cut Tape

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: £2.98
500Expected 29/09/2026

Mfr. Part No.
EFM8LB12F64E-C-QFP32R

Mouser Part No
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

500Expected 29/09/2026

Cut Tape

£2.98

£2.22

£2.03

£1.82

Reel

£1.68

View

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFP-32

CIP-51 8051

64 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

28 I/O

4.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

Reel, Cut Tape

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

EFM32TG11B320F128GM64-B
Silicon Labs
1,300: £2.53
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B320F128GM64-B

Mouser Part No
634-1B320F128GM64-B

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.53

£2.51

Min.: 1,300
Mult.: 1,300

SMD/SMT

QFN-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

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

EFM32TG11B320F128GM64-BR
Silicon Labs
1,000: £2.52
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B320F128GM64-BR

Mouser Part No
634-1B320F128GM64-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.52

Min.: 1,000
Mult.: 1,000

: 1,000

SMD/SMT

QFN-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel

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

EFM32TG11B320F128GQ64-B
Silicon Labs
800: £2.54
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B320F128GQ64-B

Mouser Part No
634-1B320F128GQ64-B

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.54

£2.52

Min.: 800
Mult.: 800

SMD/SMT

QFP-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

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

EFM32TG11B320F128GQ64-BR
Silicon Labs
1,000: £2.51
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B320F128GQ64-BR

Mouser Part No
634-1B320F128GQ64-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.51

Min.: 1,000
Mult.: 1,000

: 1,000

SMD/SMT

QFP-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel

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

EFM32TG11B340F64GM64-B
Silicon Labs
1,300: £2.27
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B340F64GM64-B

Mouser Part No
634-1B340F64GM64-B

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.27

£2.26

Min.: 1,300
Mult.: 1,300

SMD/SMT

QFN-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

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

EFM32TG11B340F64GM64-BR
Silicon Labs
1,000: £2.13
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B340F64GM64-BR

Mouser Part No
634-1B340F64GM64-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.13

Min.: 1,000
Mult.: 1,000

: 1,000

SMD/SMT

QFN-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel

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

EFM32TG11B340F64GQ64-B
Silicon Labs
800: £2.31
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B340F64GQ64-B

Mouser Part No
634-1B340F64GQ64-B

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.31

£2.29

Min.: 800
Mult.: 800

SMD/SMT

QFP-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

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

EFM32TG11B340F64GQ64-BR
Silicon Labs
1,000: £2.29
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B340F64GQ64-BR

Mouser Part No
634-1B340F64GQ64-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.29

Min.: 1,000
Mult.: 1,000

: 1,000

SMD/SMT

QFP-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel

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

EFM32TG11B340F64IM64-B
Silicon Labs
1,300: £2.38
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B340F64IM64-B

Mouser Part No
634-1B340F64IM64-B

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.38

Min.: 1,300
Mult.: 1,300

SMD/SMT

QFN-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 125 C

Tray

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

EFM32TG11B340F64IM64-BR
Silicon Labs
1,000: £2.38
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B340F64IM64-BR

Mouser Part No
634-1B340F64IM64-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.38

Min.: 1,000
Mult.: 1,000

: 1,000

SMD/SMT

QFN-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 125 C

Reel

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

EFM32TG11B520F128GM32-BR
Silicon Labs
2,500: £2.33
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B520F128GM32-BR

Mouser Part No
634-1B520F128GM32-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.33

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

: 2,500

SMD/SMT

QFN-32

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

22 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel

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

EFM32TG11B520F128GM64-BR
Silicon Labs
1,000: £2.52
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B520F128GM64-BR

Mouser Part No
634-1B520F128GM64-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.52

Min.: 1,000
Mult.: 1,000

: 1,000

SMD/SMT

QFN-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel

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

EFM32TG11B520F128GQ64-BR
Silicon Labs
1,000: £2.57
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B520F128GQ64-BR

Mouser Part No
634-1B520F128GQ64-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.57

Min.: 1,000
Mult.: 1,000

: 1,000

SMD/SMT

QFP-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

50 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel

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

EFM32TG11B520F128IM32-B
Silicon Labs
2,450: £2.51
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B520F128IM32-B

Mouser Part No
634-1B520F128IM32-B

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.51

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

SMD/SMT

QFN-32

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

22 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 125 C

Tray

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

EFM32TG11B520F128IM32-BR
Silicon Labs
2,500: £2.48
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B520F128IM32-BR

Mouser Part No
634-1B520F128IM32-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.48

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

: 2,500

SMD/SMT

QFN-32

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

22 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 125 C

Reel

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

EFM32TG11B540F64GQ64-B
Silicon Labs
800: £2.33
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B540F64GQ64-B

Mouser Part No
634-1B540F64GQ64-B

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.33

£2.31

Min.: 800
Mult.: 800

SMD/SMT

QFP-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

50 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Tray

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

EFM32TG11B540F64GQ64-BR
Silicon Labs
1,000: £2.31
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B540F64GQ64-BR

Mouser Part No
634-1B540F64GQ64-BR

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.31

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

SMD/SMT

QFP-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

50 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 85 C

Reel

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

EFM32TG11B540F64IM32-B
Silicon Labs
2,450: £2.26
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32TG11B540F64IM32-B

Mouser Part No
634-1B540F64IM32-B

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.26

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

SMD/SMT

QFN-32

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

22 I/O

32 kB

1.8 V

3.8 V

- 40 C

+ 125 C

Tray

Silicon Labs Microcontrollers - MCU

Types of 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