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8051 microcontroller Microcontrollers - MCU

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Types of Microcontrollers - MCU

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Part #

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
473In Stock

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

473In Stock

£2.03

£1.71

£1.46

£1.38

View

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 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB10F16E-C-QFP32
Silicon Labs
1: £2.87
134In Stock

Mfr. Part No.
EFM8LB10F16E-C-QFP32

Mouser Part No
634-LB10F16ECQFP32

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

134In Stock

£2.87

£1.95

£1.80

£1.56

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-32

CIP-51 8051

16 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

28 I/O

1.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

Tray

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB11F16E-C-QFP32
Silicon Labs
1: £3.03
36In Stock

Mfr. Part No.
EFM8LB11F16E-C-QFP32

Mouser Part No
634-LB11F16ECQFP32

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

36In Stock

£3.03

£2.01

£1.82

£1.55

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-32

CIP-51 8051

16 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

28 I/O

1.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

Tray

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

EFM8BB21F16A-C-QFN20
Silicon Labs
1: £3.08
44In Stock
2,520Expected 01/09/2026

Mfr. Part No.
EFM8BB21F16A-C-QFN20

Mouser Part No
634-EFM8BB21F16FN20

Silicon Labs

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

Learn More

Datasheet

44In Stock

2,520Expected 01/09/2026

£3.08

£2.23

£2.02

£1.75

£1.58

Min.: 1
Mult.: 1

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

Tube

8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V

CY8C3446LTI-085
Infineon Technologies
1: £12.13
6In Stock

Mfr. Part No.
CY8C3446LTI-085

Mouser Part No
727-CY8C3446LTI-085

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

6In Stock

£12.13

£9.49

£8.55

£8.08

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

64 kB

8 bit

12 bit

50 MHz

48 I/O

8 kB

1.71 V

5.5 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

EFM8BB21F16G-C-QFN20
Silicon Labs
1: £1.20
263In Stock
2,520Expected 08/01/2027

Mfr. Part No.
EFM8BB21F16G-C-QFN20

Mouser Part No
634-8BB21F16GCQFN20

Silicon Labs

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

Learn More

Datasheet

263In Stock

2,520Expected 08/01/2027

£1.20

£1.03

£0.899

£0.841

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

CIP-51 8051

16 kB

8 bit

12 bit

50 MHz

16 I/O

2.3 kB

2.2 V

3.6 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

EFM8BB22F16G-C-QFN28
Silicon Labs
1: £1.58
1,412In Stock

Mfr. Part No.
EFM8BB22F16G-C-QFN28

Mouser Part No
634-8BB22F16GCQFN28

Silicon Labs

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

Learn More

Datasheet

1,412In Stock

£1.58

£1.33

£1.13

£1.07

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-28

CIP-51 8051

16 kB

8 bit

12 bit

50 MHz

22 I/O

2.3 kB

2.2 V

3.6 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

EFM8BB21F16I-C-QFN20R
Silicon Labs
1: £1.96
166In Stock

Mfr. Part No.
EFM8BB21F16I-C-QFN20R

Mouser Part No
634-BB21F16ICQFN20R

Silicon Labs

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

Learn More

Datasheet

166In Stock

Cut Tape

£1.96

£1.27

£1.15

£0.978

View

Reel

£0.71

MouseReel Available

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

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V

CY8C3246LTI-149
Infineon Technologies
1: £10.78
8In Stock

Mfr. Part No.
CY8C3246LTI-149

Mouser Part No
727-CY8C3246LTI-149

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

8In Stock

£10.78

£8.37

£7.55

£7.11

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

64 kB

8 bit

12 bit

50 MHz

46 I/O

8 kB

1.71 V

5.5 V

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

CY8C3244AXI-153
Infineon Technologies
1: £8.47
33In Stock

Mfr. Part No.
CY8C3244AXI-153

Mouser Part No
727-CY8C3244AXI-153

Infineon Technologies

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

33In Stock

£8.47

£6.59

£5.98

£4.81

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

16 kB

8 bit

12 bit

50 MHz

70 I/O

2 kB

1.71 V

5.5 V

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

EFM8UB20F64G-B-QFP48R
Silicon Labs
1: £3.73
63In Stock
End of Life

Mfr. Part No.
EFM8UB20F64G-B-QFP48R

Mouser Part No
634-EFM8UB64GBQFP48R

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU

Datasheet

63In Stock

Cut Tape

£3.73

£2.87

£2.68

£2.50

£2.44

Reel

£1.95

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFP-48

CIP-51 8051

64 kB

8 bit

10 bit

48 MHz

40 I/O

4.25 kB

2.65 V

3.6 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB11F16E-C-QSOP24
Silicon Labs
1: £2.67
52In Stock
End of Life

Mfr. Part No.
EFM8LB11F16E-C-QSOP24

Mouser Part No
634-LB11F16ECQSOP24

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

Datasheet

52In Stock

£2.67

£1.81

£1.68

£1.46

View

Min.: 1
Mult.: 1

SMD/SMT

QSOP-24

CIP-51 8051

16 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

21 I/O

1.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

Tube

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

EFM8BB31F64I-D-QFP32
Silicon Labs
1: £3.55
5In Stock
End of Life

Mfr. Part No.
EFM8BB31F64I-D-QFP32

Mouser Part No
634-EF8BB31F64IDQP32

End of Life

Silicon Labs

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

Datasheet

5In Stock

£3.55

£2.34

£2.14

£1.82

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-32

CIP-51 8051

64 kB

8 bit

10 bit, 12 bit

50 MHz

28 I/O

4.35 kB

2.2 V

3.6 V

- 40 C

+ 125 C

Tray

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F32G-B-QFN32
Silicon Labs
1: £1.90
787In Stock
End of Life

Mfr. Part No.
EFM8SB20F32G-B-QFN32

Mouser Part No
634-EFM8SBF32GBQFN32

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

787In Stock

£1.90

£1.60

£1.36

£1.29

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

CIP-51 8051

32 kB

8 bit

10 bit

25 MHz

24 I/O

4.25 kB

1.8 V

3.6 V

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F32G-B-QFN32R
Silicon Labs
1: £2.76
81In Stock
End of Life

Mfr. Part No.
EFM8SB20F32G-B-QFN32R

Mouser Part No
634-EFM8SB32GBQFN32R

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

81In Stock

Cut Tape

£2.76

£1.87

£1.74

£1.51

Reel

£1.00

View

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

CIP-51 8051

32 kB

8 bit

10 bit

25 MHz

24 I/O

4.25 kB

1.8 V

3.6 V

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

EFM8LB10F16E-C-QSOP24
Silicon Labs
1: £2.54
53In Stock
End of Life

Mfr. Part No.
EFM8LB10F16E-C-QSOP24

Mouser Part No
634-LB10F16ECQSOP24

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU

Datasheet

53In Stock

£2.54

£1.68

£1.55

£1.34

View

Min.: 1
Mult.: 1

SMD/SMT

QSOP-24

CIP-51 8051

16 kB

8 bit

10 bit/12 bit/14 bit

72 MHz

21 I/O

1.25 kB

2.2 V

3.6 V

- 40 C

+ 105 C

Tube

8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU

EFM8LB11F32E-C-QFN24R
Silicon Labs
1: £2.87
12In Stock

Mfr. Part No.
EFM8LB11F32E-C-QFN24R

Mouser Part No
634-LB11F32ECQFN24R

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

12In Stock

Cut Tape

£2.87

£1.95

£1.80

£1.56

Reel

£1.07

View

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

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

EFM8BB31F32I-D-4QFN24
Silicon Labs
1: £2.50
475In Stock

Mfr. Part No.
EFM8BB31F32I-D-4QFN24

Mouser Part No
634-EF8BB31F32ID4F24

Silicon Labs

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

Learn More

Datasheet

475In Stock

£2.50

£1.64

£1.52

£1.32

View

Min.: 1
Mult.: 1

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

Tube

8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU

EFM8LB12F32E-C-QFN24
Silicon Labs
1: £3.06
257In Stock

Mfr. Part No.
EFM8LB12F32E-C-QFN24

Mouser Part No
634-LB12F32ECQFN24

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

257In Stock

£3.06

£2.02

£1.84

£1.56

View

Min.: 1
Mult.: 1

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

Tube

ARM Microcontrollers - MCU Scalable Mainstream 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core

LPC1754FBD80K
NXP Semiconductors
1: £8.56
830In Stock
1,190Expected 16/11/2026

Mfr. Part No.
LPC1754FBD80K

Mouser Part No
771-LPC1754FBD80K

NXP Semiconductors

ARM Microcontrollers - MCU Scalable Mainstream 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core

Learn More

Datasheet

830In Stock

1,190Expected 16/11/2026

£8.56

£6.69

£5.95

£5.67

View

Min.: 1
Mult.: 1

SMD/SMT

LQFP-80

ARM Cortex M3

128 kB

32 bit

12 bit

100 MHz

52 I/O

32 kB

2.4 V

3.6 V

- 40 C

+ 85 C

Tray

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

C8051F336-GM
Silicon Labs
1: £8.39
2,941In Stock

Mfr. Part No.
C8051F336-GM

Mouser Part No
634-C8051F336-GM

Silicon Labs

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

Datasheet

2,941In Stock

£8.39

£6.95

£5.93

£5.83

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

8051

16 kB

8 bit

10 bit

25 MHz

17 I/O

768 B

2.7 V

3.6 V

- 40 C

+ 85 C

Tube

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

C8051F411-GMR
Silicon Labs
1: £10.41
2,277In Stock

Mfr. Part No.
C8051F411-GMR

Mouser Part No
634-C8051F411-GMR

Silicon Labs

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

Datasheet

2,277In Stock

Cut Tape

£10.41

£8.70

£8.08

£7.45

View

Reel

£6.16

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

QFN-28

8051

32 kB

8 bit

12 bit

50 MHz

20 I/O

2.25 kB

2 V

5.25 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU

AT89LP52-20JU
Microchip Technology
1: £2.59
130Expected 22/10/2026

Mfr. Part No.
AT89LP52-20JU

Mouser Part No
556-AT89LP52-20JU

Microchip Technology

8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU

Learn More

Datasheet

130Expected 22/10/2026

£2.59

£2.37

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

8 kB

8 bit

No ADC

20 MHz

36 I/O

256 B

2.4 V

5.5 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-SOIC16R
Silicon Labs
1: £0.986
5,000Expected 08/09/2026

Mfr. Part No.
EFM8BB10F8G-A-SOIC16R

Mouser Part No
634-8BB10F8GASO16R

Silicon Labs

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

Learn More

Datasheet

5,000Expected 08/09/2026

Cut Tape

£0.986

£0.818

£0.705

£0.641

Reel

£0.442

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

Reel, Cut Tape, MouseReel

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

EFM8BB10F8I-A-QFN20
Silicon Labs
1: £0.943
2,520Expected 01/09/2026

Mfr. Part No.
EFM8BB10F8I-A-QFN20

Mouser Part No
634-FM8BB10F8IAQFN20

Silicon Labs

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

Learn More

Datasheet

2,520Expected 01/09/2026

£0.943

£0.811

£0.707

£0.658

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

CIP-51 8051

8 kB

8 bit

12 bit

25 MHz

16 I/O

512 B

2.2 V

3.6 V

- 40 C

+ 125 C

Tube

8051 microcontroller Microcontrollers - MCU

Types of Microcontrollers - MCU

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Company

Resources

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CSP-16
DFN-10
LQFP-32
LQFP-80
PDIP-14
PDIP-20
PDIP-40
PLCC-44
PQFP-48
QFN-11
QFN-12
QFN-16
QFN-20
QFN-24
QFN-28
QFN-32
QFN-40
QFN-48
QFN-68
QFP-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
19 I/O
20 I/O
21 I/O
22 I/O
24 I/O
25 I/O
28 I/O
29 I/O
31 I/O
32 I/O
33 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
3.25 kB
4 kB
4.25 kB
4.35 kB
8 kB
8.25 kB
16 kB
32 kB