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Silicon Labs 8-bit Microcontrollers - MCU

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Part #

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

C8051F531-C-IT
Silicon Labs
1: ¥1,204.2
1,551Expected 1/1/2027
End of Life

Mfr. Part #
C8051F531-C-IT

Mouser Part #
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 1/1/2027

¥1,204.2

¥958.4

¥867

Min.: 1
Mult.: 1

8051

8 kB

256 B

TSSOP-20

25 MHz

12 bit

16 I/O

2 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 125 C

C8051F531

AEC-Q100

Tube

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

C8051F580-IM
Silicon Labs
1: ¥2,669.2
810Expected 1/29/2027
End of Life

Mfr. Part #
C8051F580-IM

Mouser Part #
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 1/29/2027

¥2,669.2

¥2,350.3

¥2,071.3

¥1,832.1

Min.: 1
Mult.: 1

8051

128 kB

8.25 kB

QFN-48

24 MHz

12 bit

40 I/O

1.8 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 125 C

C8051F580

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: ¥450.1
526Expected 5/7/2027

Mfr. Part #
EFM8UB10F16G-C-QFN28

Mouser Part #
634-8UB10F16GCQFN28

Silicon Labs

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

Datasheet

526Expected 5/7/2027

¥450.1

¥378.7

¥322.2

¥305.6

View

Min.: 1
Mult.: 1

CIP-51 8051

16 kB

2.25 kB

QFN-28

50 MHz

12 bit

22 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8UB

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: ¥219.3
197Expected 9/17/2027

Mfr. Part #
EFM8BB52F32G-C-TSSOP20

Mouser Part #
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 9/17/2027

¥219.3

¥167.8

¥149.7

¥126.1

View

Min.: 1
Mult.: 1

16 kB

1.28 kB

TSSOP-20

16 I/O

1.8 V

5.5 V

SMD/SMT

- 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: ¥657.8
500Expected 9/29/2026

Mfr. Part #
EFM8LB12F64E-C-QFP32R

Mouser Part #
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 9/29/2026

Cut Tape

¥657.8

¥490

¥448.5

¥402

Reel

¥370.4

View

Min.: 1
Mult.: 1

: 500

CIP-51 8051

64 kB

4.25 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 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU

EFM8BB10F8G-A-QFN20
Silicon Labs
1: ¥182.7
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM8BB10F8G-A-QFN20

Mouser Part #
634-8BB10F8GAQF20

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥182.7

¥144.3

¥130.7

¥118.9

View

Min.: 1
Mult.: 1

CIP-51 8051

8 kB

512 B

QFN-20

25 MHz

12 bit

16 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

EFM8BB1

Tube

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

EFM8BB10F8I-A-SOIC16R
Silicon Labs
2,500: ¥111.5
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM8BB10F8I-A-SOIC16R

Mouser Part #
634-8BB10F8IASOIC16R

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥111.5

¥110.1

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

: 2,500

CIP-51 8051

8 kB

512 B

SOIC-16

25 MHz

12 bit

13 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 125 C

EFM8BB1

Reel

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

EFM8SB10F4G-A-QFN20R
Silicon Labs
1,500: ¥131.2
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM8SB10F4G-A-QFN20R

Mouser Part #
634-8SB10F4GAQF20R

Silicon Labs

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥131.2

¥129.9

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

: 1,500

CIP-51 8051

4 kB

512 B

QFN-20

25 MHz

12 bit

16 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Reel

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

C8051F342-GM
Silicon Labs
1,533: ¥2,519.7
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F342-GM

Mouser Part #
634-C8051F342-GM

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥2,519.7

View

Min.: 1,533
Mult.: 1,533

8051

64 kB

4.25 kB

QFN-32

48 MHz

10 bit

25 I/O

2.7 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F342

Tube

8-bit Microcontrollers - MCU Next gen available (F381-GM) 48 MIPS,64KB,10ADC,USB,32Pin

C8051F342-GMR
Silicon Labs
1,500: ¥2,612.8
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F342-GMR

Mouser Part #
634-C8051F342-GMR

Silicon Labs

8-bit Microcontrollers - MCU Next gen available (F381-GM) 48 MIPS,64KB,10ADC,USB,32Pin

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥2,612.8

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

: 1,500

8051

2.7 V

5.25 V

8 bit

C8051F342

Reel

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU

C8051F346-GM
Silicon Labs
1,533: ¥2,488.2
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F346-GM

Mouser Part #
634-C8051F346-GM

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥2,488.2

Quote

Min.: 1,533
Mult.: 1,533

8051

64 kB

4.25 kB

QFN-32

25 MHz

10 bit

25 I/O

2.7 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F346

Tube

8-bit Microcontrollers - MCU Next gen available (F381-GM) 25 MIPS,64KB,10ADC,USB,32Pin

C8051F346-GMR
Silicon Labs
1,500: ¥2,486.5
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F346-GMR

Mouser Part #
634-C8051F346-GMR

Silicon Labs

8-bit Microcontrollers - MCU Next gen available (F381-GM) 25 MIPS,64KB,10ADC,USB,32Pin

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥2,486.5

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

: 1,500

C8051F346

Reel

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

C8051F34A-GM
Silicon Labs
1,533: ¥2,670.9
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F34A-GM

Mouser Part #
634-C8051F34A-GM

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥2,670.9

Quote

Min.: 1,533
Mult.: 1,533

8051

64 kB

4.25 kB

LQFP-32

25 MHz

10 bit

25 I/O

2.7 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F34A

Tube

8-bit Microcontrollers - MCU Next gen available (F381-GM) 48 MIPS,64KB,10ADC,2xUART, USB,32Pin

C8051F34A-GMR
Silicon Labs
1,500: ¥2,667.6
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F34A-GMR

Mouser Part #
634-C8051F34A-GMR

Silicon Labs

8-bit Microcontrollers - MCU Next gen available (F381-GM) 48 MIPS,64KB,10ADC,2xUART, USB,32Pin

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥2,667.6

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

: 1,500

8051

2.7 V

5.25 V

8 bit

C8051F34A

Reel

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

C8051F353-GMR
Silicon Labs
1: ¥2,006.5
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F353-GMR

Mouser Part #
634-C8051F353-GMR

Silicon Labs

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

¥2,006.5

¥1,597.9

¥1,445.1

¥1,350.4

View

Reel

¥1,177.6

Min.: 1
Mult.: 1

: 1,500

8051

8 kB

768 B

QFN-28

50 MHz

16 bit

17 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F353

Reel, Cut Tape

8-bit Microcontrollers - MCU USB-Flash-32k-ADC-QFN32 OTP available (T627-GM)

C8051F383-GMR
Silicon Labs
1,500: ¥583
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F383-GMR

Mouser Part #
634-C8051F383-GMR

Silicon Labs

8-bit Microcontrollers - MCU USB-Flash-32k-ADC-QFN32 OTP available (T627-GM)

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥583

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

: 1,500

8051

32 kB

2.25 kB

QFN-32

48 MHz

10 bit

25 I/O

2.7 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F383

Reel

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

C8051F385-GMR
Silicon Labs
1,500: ¥659.4
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F385-GMR

Mouser Part #
634-C8051F385-GMR

Silicon Labs

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥659.4

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

: 1,500

8051

64 kB

4.35 kB

QFN-32

48 MHz

25 I/O

2.7 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F385

Reel

8-bit Microcontrollers - MCU USB-Flash-32k-QFN32 OTP available (T627-GM)

C8051F387-GMR
Silicon Labs
1,500: ¥556.4
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F387-GMR

Mouser Part #
634-C8051F387-GMR

Silicon Labs

8-bit Microcontrollers - MCU USB-Flash-32k-QFN32 OTP available (T627-GM)

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥556.4

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

: 1,500

8051

32 kB

2.3 kB

QFN-32

48 MHz

25 I/O

2.7 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F387

Reel

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU

C8051F38C-GM
Silicon Labs
1,533: ¥480
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F38C-GM

Mouser Part #
634-C8051F38C-GM

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥480

¥473.4

Quote

Min.: 1,533
Mult.: 1,533

8051

16 kB

2.25 kB

QFN-32

48 MHz

10 bit

25 I/O

2.7 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F38C

Tube

8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN32

C8051F38C-GMR
Silicon Labs
1,500: ¥460.1
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F38C-GMR

Mouser Part #
634-C8051F38C-GMR

Silicon Labs

8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN32

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥460.1

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

: 1,500

C8051F38C

Reel

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU

C8051F391-A-GM
Silicon Labs
1,911: ¥375.4
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F391-A-GM

Mouser Part #
634-C8051F391-A-GM

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥375.4

Min.: 1,911
Mult.: 1,911

8051

16 kB

1 kB

QFN-24

50 MHz

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F391

Tube

8-bit Microcontrollers - MCU 16kB/1kB RAM, QFN24

C8051F391-A-GMR
Silicon Labs
1,500: ¥375.4
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F391-A-GMR

Mouser Part #
634-C8051F391-A-GMR

Silicon Labs

8-bit Microcontrollers - MCU 16kB/1kB RAM, QFN24

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥375.4

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

: 1,500

C8051F391

Reel

8-bit Microcontrollers - MCU 16kB/1kB RAM, QFN20

C8051F393-A-GMR
Silicon Labs
1,500: ¥368.7
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F393-A-GMR

Mouser Part #
634-C8051F393-A-GMR

Silicon Labs

8-bit Microcontrollers - MCU 16kB/1kB RAM, QFN20

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥368.7

¥365.4

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

: 1,500

C8051F393

Reel

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU

C8051F394-A-GM
Silicon Labs
1: ¥656.1
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F394-A-GM

Mouser Part #
634-C8051F394-A-GM

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥656.1

¥514.9

¥451.8

¥416.9

View

Min.: 1
Mult.: 1

8051

8 kB

1 kB

QFN-24

50 MHz

10 bit

21 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F394

Tube

8-bit Microcontrollers - MCU 8kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24

C8051F394-A-GMR
Silicon Labs
1,500: ¥358.8
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F394-A-GMR

Mouser Part #
634-C8051F394-A-GMR

Silicon Labs

8-bit Microcontrollers - MCU 8kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

¥358.8

¥355.5

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

: 1,500

8051

8 kB

1 kB

50 MHz

10 bit

21 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

C8051F394

Reel

CSP-16
LQFP-32
PQFP-48
QFN-11
QFN-12
QFN-16
QFN-20
QFN-24
QFN-28
QFN-32
QFN-40
QFN-48
QFP-32
QFP-48
QSOP-24
SOIC-14
SOIC-16
TQFP-100
TQFP-48
TQFP-64

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
28 I/O
29 I/O
32 I/O
33 I/O
39 I/O
40 I/O

BB50
C8051F005
C8051F006
C8051F018
C8051F019
C8051F020
C8051F021
C8051F022
C8051F040
C8051F042
C8051F043
C8051F044
C8051F046
C8051F060
C8051F061
C8051F064
C8051F066
C8051F120
C8051F121
C8051F122