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8051 microcontroller Embedded Processors & Controllers

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Part #

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

CY8C3244PVI-133
Infineon Technologies
1: £7.83
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3244PVI-133

Mouser Part No
727-CY8C3244PVI-133

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

£7.83

£6.05

£5.77

£4.30

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SSOP-48

8051

8 bit

50 MHz

16 kB

2 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V

CY8C3665LTI-044
Infineon Technologies
1,300: £7.25
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3665LTI-044

Mouser Part No
727-CY8C3665LTI-044

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

£7.25

View

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

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

67 MHz

32 kB

4 kB

12 bit

48 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3866AXI-035
Infineon Technologies
900: £12.87
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3866AXI-035

Mouser Part No
727-CY8C3866AXI-035

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

£12.87

View

Min.: 900
Mult.: 900

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

70 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3866AXI-039
Infineon Technologies
1: £20.73
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3866AXI-039

Mouser Part No
727-CY8C3866AXI-039

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

£20.73

£16.42

£14.88

£14.12

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

72 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3666LTI-050
Infineon Technologies
1: £17.02
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666LTI-050

Mouser Part No
727-CY8C3666LTI-050

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

£17.02

£13.76

£13.19

£11.62

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

31 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 105

N76E003BQ20
Nuvoton
3,000: £0.354
Non-Stocked Lead-Time 40 Weeks

Mfr. Part No.
N76E003BQ20

Mouser Part No
503-N76E003BQ20

Nuvoton

8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 105

Datasheet

Non-Stocked Lead-Time 40 Weeks

Reel

£0.354

Min.: 3,000
Mult.: 3,000

: 3,000

8-bit Microcontrollers - MCU

SMD/SMT

LQFP-44

8051

8 bit

16 MHz

18 kB

256 B

12 bit

18 I/O

- 40 C

+ 105 C

Reel

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

CY8C3444LTI-119
Infineon Technologies
1: £9.43
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3444LTI-119

Mouser Part No
727-CY8C3444LTI-119

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

£9.43

£7.66

£7.32

£6.09

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

16 kB

2 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3445LTI-078
Infineon Technologies
1: £9.38
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3445LTI-078

Mouser Part No
727-CY8C3445LTI-078

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

£9.38

£7.36

£6.55

£6.30

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3666AXI-036
Infineon Technologies
1: £14.94
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666AXI-036

Mouser Part No
727-CY8C3666AXI-036

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

£14.94

£11.99

£10.42

£10.09

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

28 I/O

+ 85 C

Tray

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 64 kB +20 dBm

SI1061-A-GMR
Silicon Labs
2,500: £5.11
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SI1061-A-GMR

Mouser Part No
634-SI1061-A-GMR

Silicon Labs

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 64 kB +20 dBm

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£5.11

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

: 2,500

RF Microcontrollers - MCU

SMD/SMT

QFN-36

8051

8 bit

25 MHz

32 kB

4 kB

10 bit

11 I/O

- 40 C

+ 85 C

Reel

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

EFM8SB20F32G-B-QFN24
Silicon Labs
1: £1.72
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB20F32G-B-QFN24

Mouser Part No
634-EFM8SBF32GBQFN24

Silicon Labs

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£1.72

£1.37

£1.20

£1.11

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

25 MHz

32 kB

4.25 kB

10 bit

16 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB52F16I-C-TSSOP20R
Silicon Labs
2,500: £0.39
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F16I-C-TSSOP20R

Mouser Part No
634-EFM852F16ITOP20R

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

Non-Stocked Lead-Time 24 Weeks

Reel

£0.39

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

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB51F16G-C-TSSOP20R
Silicon Labs
1: £0.773
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB51F16G-C-TSSOP20R

Mouser Part No
634-EFM851GCTSSOP20R

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

Non-Stocked Lead-Time 24 Weeks

Cut Tape

£0.773

£0.553

£0.498

£0.437

View

Reel

£0.39

Min.: 1
Mult.: 1

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel, Cut Tape

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 16 kB +20 dBm

SI1060-A-GMR
Silicon Labs
2,500: £5.53
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SI1060-A-GMR

Mouser Part No
634-SI1060-A-GMR

Silicon Labs

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 16 kB +20 dBm

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£5.53

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

: 2,500

RF Microcontrollers - MCU

SMD/SMT

QFN-36

8051

8 bit

25 MHz

64 kB

4 kB

10 bit

11 I/O

- 40 C

+ 85 C

Reel

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 32 kB +13 dBm

SI1062-A-GMR
Silicon Labs
2,500: £4.93
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SI1062-A-GMR

Mouser Part No
634-SI1062-A-GMR

Silicon Labs

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 32 kB +13 dBm

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£4.93

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

: 2,500

RF Microcontrollers - MCU

SMD/SMT

QFN-36

8051

8 bit

25 MHz

64 kB

4 kB

10 bit

11 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

EFM8BB50F4G-A-QFN12R
Silicon Labs
3,000: £0.265
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F4G-A-QFN12R

Mouser Part No
634-M8BB50F4GAQFN12R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.265

Min.: 3,000
Mult.: 3,000

: 3,000

8-bit Microcontrollers - MCU

SMD/SMT

QFN-12

8 bit

50 MHz

4 kB

512 B

12 bit

9 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F4G-A-SOIC16R
Silicon Labs
2,500: £0.335
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F4G-A-SOIC16R

Mouser Part No
634-M8BB50F4GASIC16R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.335

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

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

8 bit

50 MHz

4 kB

512 B

12 bit

12 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F4G-A-QFN16R
Silicon Labs
3,000: £0.277
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F4G-A-QFN16R

Mouser Part No
634-M8BB50F4GAQFN16R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.277

Min.: 3,000
Mult.: 3,000

: 3,000

8-bit Microcontrollers - MCU

SMD/SMT

QFN-16

8 bit

50 MHz

4 kB

512 B

12 bit

12 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU

EFM8BB10F2I-A-QFN20R
Silicon Labs
1: £0.773
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F2I-A-QFN20R

Mouser Part No
634-M8BB10F2IAQFN20R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

£0.773

£0.553

£0.498

£0.437

Reel

£0.368

View

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

CIP-51 8051

8 bit

25 MHz

2 kB

256 B

12 bit

16 I/O

- 40 C

+ 125 C

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F16G-B-QFN24R
Silicon Labs
1,500: £0.863
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB20F16G-B-QFN24R

Mouser Part No
634-EFM8SB16GBQFN24R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.863

£0.849

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

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

CIP-51 8051

8 bit

25 MHz

16 kB

4.25 kB

10 bit

16 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

EFM8BB50F8G-A-QFN12R
Silicon Labs
3,000: £0.301
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F8G-A-QFN12R

Mouser Part No
634-M8BB50F8GAQFN12R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.301

Min.: 3,000
Mult.: 3,000

: 3,000

8-bit Microcontrollers - MCU

SMD/SMT

QFN-12

8 bit

50 MHz

8 kB

512 B

12 bit

9 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F8G-A-SOIC16R
Silicon Labs
2,500: £0.379
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F8G-A-SOIC16R

Mouser Part No
634-M8BB50F8GASIC16R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.379

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

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

8 bit

50 MHz

8 kB

512 B

12 bit

12 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F8I-A-SOIC16R
Silicon Labs
2,500: £0.391
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F8I-A-SOIC16R

Mouser Part No
634-M8BB50F8IASIC16R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£0.391

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

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

8 bit

50 MHz

8 kB

512 B

12 bit

12 I/O

- 40 C

+ 125 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

EFM8BB50F16I-A-QFN12R
Silicon Labs
1: £0.721
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F16I-A-QFN12R

Mouser Part No
634-M8BB50F16IAFN12R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

£0.721

£0.503

£0.451

£0.395

View

Reel

£0.35

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

8-bit Microcontrollers - MCU

SMD/SMT

QFN-12

8 bit

50 MHz

16 kB

512 B

12 bit

9 I/O

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F4G-A-SOIC16
Silicon Labs
1: £0.736
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F4G-A-SOIC16

Mouser Part No
634-M8BB50F4GASOIC16

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£0.736

£0.566

£0.502

£0.457

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

8 bit

50 MHz

4 kB

512 B

12 bit

12 I/O

- 40 C

+ 85 C

Tube

8051 microcontroller Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

CSP-16
DFN-10
LQFP-32
LQFP-44
LQFP-48
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-36
QFN-40

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

6 I/O
8 I/O
9 I/O
11 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