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Silicon Labs Microcontrollers - MCU

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Part #

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

EFM32GG11B120F2048GQ64-B
Silicon Labs
1: ¥3,089.5
1,061In Stock

Mfr. Part #
EFM32GG11B120F2048GQ64-B

Mouser Part #
634-B120F2048GQ64-B

Silicon Labs

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

Learn More

Datasheet

1,061In Stock

¥3,089.5

¥2,491.5

¥2,345.3

¥2,210.8

Quote

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: ¥3,519.7
218In Stock

Mfr. Part #
EFM32GG11B820F2048GL120-B

Mouser Part #
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

¥3,519.7

¥2,832

¥2,607.8

¥2,436.7

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: ¥3,722.3
634In Stock
1,300Expected 1/15/2027

Mfr. Part #
EFM32GG11B820F2048GL192-B

Mouser Part #
634-B820F2048GL192-B

Silicon Labs

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

Learn More

Datasheet

634In Stock

1,300Expected 1/15/2027

¥3,722.3

¥3,029.7

¥2,768.9

¥2,616.1

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: ¥3,340.3
779In Stock

Mfr. Part #
EFM32GG11B820F2048GQ64-B

Mouser Part #
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

¥3,340.3

¥2,705.8

¥2,479.9

¥2,357

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

EFM8BB21F16A-C-QFN20R
Silicon Labs
1: ¥740.8
1,498In Stock

Mfr. Part #
EFM8BB21F16A-C-QFN20R

Mouser Part #
634-BB21F16ACQFN20R

Silicon Labs

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

Learn More

Datasheet

1,498In Stock

Cut Tape

¥740.8

¥490

¥445.1

¥378.7

View

Reel

¥315.6

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-20

CIP-51 8051

16 kB

8 bit

12 bit

50 MHz

16 I/O

2.25 kB

2.2 V

3.6 V

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape

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

C8051F311-GMR
Silicon Labs
1: ¥2,053
685In Stock
3,000Expected 11/27/2026

Mfr. Part #
C8051F311-GMR

Mouser Part #
634-C8051F311-GMR

Silicon Labs

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

Datasheet

685In Stock

3,000Expected 11/27/2026

Cut Tape

¥2,053

¥1,636.1

¥1,481.6

¥1,385.3

View

Reel

¥1,174.3

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: ¥2,518.1
188In Stock
1,533Expected 11/27/2026

Mfr. Part #
C8051F321-GM

Mouser Part #
634-C8051F321-GM

Silicon Labs

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

Datasheet

188In Stock

1,533Expected 11/27/2026

¥2,518.1

¥1,993.2

¥1,825.4

¥1,702.5

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: ¥2,227.4
1,057In Stock
1,533Expected 11/20/2026

Mfr. Part #
C8051F411-GM

Mouser Part #
634-C8051F411-GM

Silicon Labs

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

Datasheet

1,057In Stock

1,533Expected 11/20/2026

¥2,227.4

¥1,825.4

¥1,666

¥1,573

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: ¥308.9
4,177In Stock

Mfr. Part #
EFM8BB31F16G-D-QFN32R

Mouser Part #
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

¥308.9

¥255.8

¥220.9

¥207.6

Reel

¥157

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: ¥553.1
1,520In Stock

Mfr. Part #
EFM8BB31F32I-D-4QFN24R

Mouser Part #
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

¥553.1

¥363.8

¥335.5

¥292.3

Reel

¥225.9

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: ¥609.6
2,120In Stock

Mfr. Part #
EFM8BB31F64G-D-QFN24R

Mouser Part #
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

¥609.6

¥411.9

¥382

¥332.2

Reel

¥257.5

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-QFN32R
Silicon Labs
1: ¥443.5
1,528In Stock

Mfr. Part #
EFM8BB31F64G-D-QFN32R

Mouser Part #
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

1,528In Stock

Cut Tape

¥443.5

¥328.9

¥300.6

¥269.1

Reel

¥230.9

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: ¥420.2
5,987In Stock

Mfr. Part #
EFM8BB31F64G-D-QFN24

Mouser Part #
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

¥420.2

¥353.8

¥308.9

¥289

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: ¥473.4
995In Stock
1,500Expected 11/30/2026

Mfr. Part #
EFM8BB31F64I-D-4QFN24R

Mouser Part #
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 11/30/2026

Cut Tape

¥473.4

¥352.1

¥322.2

¥289

Reel

¥260.8

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: ¥722.5
1,309In Stock

Mfr. Part #
EFM8BB31F64I-D-QFN32

Mouser Part #
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

¥722.5

¥478.4

¥435.2

¥370.4

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: ¥860.4
860In Stock

Mfr. Part #
EFM32TG11B120F128GQ48-BR

Mouser Part #
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

¥860.4

¥647.8

¥596.3

¥538.2

Reel

¥488.3

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: ¥940.1
3,138In Stock

Mfr. Part #
EFM32TG222F32-D-QFP48

Mouser Part #
634-EFM32TG222F32-D

Silicon Labs

ARM Microcontrollers - MCU Tiny Gecko MCU IC

Learn More

Datasheet

3,138In Stock

¥940.1

¥782.3

¥689.3

¥656.1

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: ¥1,092.9
1,021In Stock

Mfr. Part #
EFM32TG11B140F64GQ48-B

Mouser Part #
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

¥1,092.9

¥802.3

¥704.3

¥657.8

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: ¥184.4
12,398In Stock

Mfr. Part #
EFM8BB51F16I-C-QFN20R

Mouser Part #
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

¥184.4

¥157.1

¥137.9

¥126.6

Reel

¥89.4

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: ¥478.4
980In Stock

Mfr. Part #
EFM8LB12F32E-C-QFN24R

Mouser Part #
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

¥478.4

¥357.1

¥325.6

¥292.3

Reel

¥264.1

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: ¥574.7
4,089In 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

4,089In Stock

Cut Tape

¥574.7

¥470.1

¥406.9

¥385.4

Reel

¥304

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: ¥601.3
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

¥601.3

¥503.3

¥441.8

¥418.6

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: ¥594.6
4,042In 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

4,042In Stock

Cut Tape

¥594.6

¥486.7

¥421.9

¥398.6

Reel

¥310.6

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

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: ¥636.2
4,780In Stock
6,250Expected 3/12/2027

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

4,780In Stock

6,250Expected 3/12/2027

¥636.2

¥531.5

¥466.7

¥443.5

View

Min.: 1
Mult.: 1

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

Tray

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

EFM32GG12B410F1024GQ64-A
Silicon Labs
1: ¥2,219.1
54In Stock
2,400Expected 10/2/2026

Mfr. Part #
EFM32GG12B410F1024GQ64-A

Mouser Part #
634-2B410F1024GQ64A

Silicon Labs

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

Learn More

Datasheet

54In Stock

2,400Expected 10/2/2026

¥2,219.1

¥1,777.3

¥1,614.5

¥1,491.6

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

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