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8051 microcontroller Embedded Processors & Controllers

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Part #

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

EFM8BB10F8I-A-SOIC16
Silicon Labs
1: $1.26
2,249In Stock

Mfr. Part No.
EFM8BB10F8I-A-SOIC16

Mouser Part No
634-8BB10F8I-ASOIC16

Silicon Labs

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

Learn More

Datasheet

2,249In Stock

$1.26

$0.893

$0.888

$0.825

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

CIP-51 8051

8 bit

25 MHz

8 kB

512 B

12 bit

13 I/O

- 40 C

+ 125 C

Tube

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU

EFM8BB52F32I-C-QFN32R
Silicon Labs
1: $1.69
11,530In Stock

Mfr. Part No.
EFM8BB52F32I-C-QFN32R

Mouser Part No
634-EFM852F32IQFN32R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU

Learn More

Datasheet

11,530In Stock

Cut Tape

$1.69

$1.08

$0.96

$0.79

Reel

$0.50

View

Min.: 1
Mult.: 1

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-32

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel, Cut Tape

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

EFM8BB31F16G-D-QFN32
Silicon Labs
1: $1.76
3,894In Stock

Mfr. Part No.
EFM8BB31F16G-D-QFN32

Mouser Part No
634-EF8BB31F16GDQN32

Silicon Labs

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

Learn More

Datasheet

3,894In Stock

$1.76

$1.49

$1.31

$1.24

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-32

CIP-51 8051

8 bit

50 MHz

16 kB

2.3 kB

10 bit, 12 bit

29 I/O

- 40 C

+ 85 C

Tray

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

EFM8BB31F64I-D-4QFN24
Silicon Labs
1: $4.04
3,658In Stock

Mfr. Part No.
EFM8BB31F64I-D-4QFN24

Mouser Part No
634-EF8BB31F64ID4F24

Silicon Labs

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

Learn More

Datasheet

3,658In Stock

$4.04

$2.68

$2.44

$2.07

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

50 MHz

64 kB

4.35 kB

10 bit, 12 bit

20 I/O

- 40 C

+ 125 C

Tube

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

EFM8BB31F16G-D-QFN24R
Silicon Labs
1: $1.70
5,763In Stock

Mfr. Part No.
EFM8BB31F16G-D-QFN24R

Mouser Part No
634-EF8BB31F16GDF24R

Silicon Labs

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

Learn More

Datasheet

5,763In Stock

Cut Tape

$1.70

$1.41

$1.22

$1.15

Reel

$0.831

View

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

50 MHz

16 kB

2.3 kB

10 bit, 12 bit

20 I/O

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU

EFM8BB52F16G-C-TSSOP28
Silicon Labs
1: $1.20
8,238In Stock

Mfr. Part No.
EFM8BB52F16G-C-TSSOP28

Mouser Part No
634-EFM852F16GTSOP28

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU

Learn More

Datasheet

8,238In Stock

$1.20

$1.03

$0.901

$0.74

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-28

16 kB

1.28 kB

25 I/O

- 40 C

+ 85 C

Cut Tape

8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40? to 85?

N76E003AQ20
Nuvoton
1: $1.49
1,126In Stock

Mfr. Part No.
N76E003AQ20

Mouser Part No
503-N76E003AQ20

Nuvoton

8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40? to 85?

Datasheet

1,126In Stock

Cut Tape

$1.49

$0.949

$0.847

$0.697

Reel

$0.45

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

8051

8 bit

16 MHz

18 kB

256 B

12 bit

18 I/O

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

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

EFM8BB31F32G-D-QFN24R
Silicon Labs
1: $3.01
8,212In Stock

Mfr. Part No.
EFM8BB31F32G-D-QFN24R

Mouser Part No
634-EF8BB31F32GDF24R

Silicon Labs

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

Learn More

Datasheet

8,212In Stock

Cut Tape

$3.01

$1.96

$1.80

$1.54

View

Reel

$1.21

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

50 MHz

32 kB

2.3 kB

10 bit, 12 bit

20 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

CY8C3865AXI-019
Infineon Technologies
1: $23.17
220In Stock

Mfr. Part No.
CY8C3865AXI-019

Mouser Part No
727-CY8C3865AXI-019

Infineon Technologies

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

Learn More

Datasheet

220In Stock

$23.17

$18.12

$17.31

$15.48

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

32 kB

4 kB

20 bit

72 I/O

- 40 C

+ 85 C

Tray

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

CY8C3866LTI-030
Infineon Technologies
1: $19.16
824In Stock

Mfr. Part No.
CY8C3866LTI-030

Mouser Part No
727-CY8C3866LTI-030

Infineon Technologies

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

Learn More

Datasheet

824In Stock

$19.16

$15.94

$15.12

$14.29

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

48 I/O

- 40 C

+ 85 C

Tray

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

CY8C3245LTI-144
Infineon Technologies
1: $10.42
195In Stock

Mfr. Part No.
CY8C3245LTI-144

Mouser Part No
727-CY8C3245LTI-144

Infineon Technologies

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

Learn More

Datasheet

195In Stock

$10.42

$8.12

$7.20

$6.92

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

31 I/O

- 40 C

+ 85 C

Tray

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

CY8C3245PVI-134
Infineon Technologies
1: $9.50
590In Stock

Mfr. Part No.
CY8C3245PVI-134

Mouser Part No
727-CY8C3245PVI-134

Infineon Technologies

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

Learn More

Datasheet

590In Stock

$9.50

$8.32

$6.46

$6.21

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SSOP-48

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tube

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

CY8C3246LTI-162
Infineon Technologies
1: $12.40
299In Stock

Mfr. Part No.
CY8C3246LTI-162

Mouser Part No
727-CY8C3246LTI-162

Infineon Technologies

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

Learn More

Datasheet

299In Stock

$12.40

$10.08

$9.61

$8.35

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

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

EFM8BB21F16I-C-QFN20
Silicon Labs
1: $1.75
3,729In Stock

Mfr. Part No.
EFM8BB21F16I-C-QFN20

Mouser Part No
634-8BB21F16I-CQFN20

Silicon Labs

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

Learn More

Datasheet

3,729In Stock

$1.75

$1.48

$1.30

$1.21

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

CIP-51 8051

8 bit

50 MHz

16 kB

2.3 kB

12 bit

16 I/O

- 40 C

+ 125 C

Tube

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

EFM8LB11F16E-C-QFN24
Silicon Labs
1: $3.34
2,259In Stock

Mfr. Part No.
EFM8LB11F16E-C-QFN24

Mouser Part No
634-LB11F16ECQFN24

Silicon Labs

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

Learn More

Datasheet

2,259In Stock

$3.34

$2.20

$2.03

$1.77

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

72 MHz

16 kB

1.25 kB

10 bit/12 bit/14 bit

20 I/O

- 40 C

+ 105 C

Tube

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU

EFM8BB52F16I-C-TSSOP28R
Silicon Labs
1: $2.00
2,435In Stock

Mfr. Part No.
EFM8BB52F16I-C-TSSOP28R

Mouser Part No
634-EFM852F16ITOP28R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU

Learn More

Datasheet

2,435In Stock

Cut Tape

$2.00

$1.28

$1.14

$0.935

Reel

$0.586

View

Min.: 1
Mult.: 1

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-28

16 kB

1.28 kB

16 I/O

- 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-QFP32
Silicon Labs
1: $3.60
5,845In Stock

Mfr. Part No.
EFM8BB31F64G-D-QFP32

Mouser Part No
634-EF8BB31F64GDQP32

Silicon Labs

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

Learn More

Datasheet

5,845In Stock

$3.60

$2.70

$2.41

$2.16

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFP-32

CIP-51 8051

8 bit

50 MHz

64 kB

4.35 kB

10 bit, 12 bit

28 I/O

- 40 C

+ 85 C

Tray

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

EFM8BB31F16G-D-QFN24
Silicon Labs
1: $1.61
4,302In Stock

Mfr. Part No.
EFM8BB31F16G-D-QFN24

Mouser Part No
634-EF8BB31F16GDQF24

Silicon Labs

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

Learn More

Datasheet

4,302In Stock

$1.61

$1.53

$1.36

$1.19

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

50 MHz

16 kB

2.3 kB

10 bit, 12 bit

20 I/O

- 40 C

+ 85 C

Tube

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: $3.84
2,078In Stock

Mfr. Part No.
EFM8BB31F64G-D-QFN32R

Mouser Part No
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

2,078In Stock

Cut Tape

$3.84

$2.60

$2.41

$2.09

Reel

$1.39

View

Min.: 1
Mult.: 1

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-32

CIP-51 8051

8 bit

50 MHz

64 kB

4.35 kB

10 bit, 12 bit

29 I/O

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL

AT89LP51-20JU
Microchip Technology
1: $3.46
404In Stock

Mfr. Part No.
AT89LP51-20JU

Mouser Part No
556-AT89LP51-20JU

Microchip Technology

8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL

Learn More

Datasheet

404In Stock

$3.46

$3.21

$3.20

Quote

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

20 MHz

4 kB

256 B

No ADC

36 I/O

- 40 C

+ 85 C

Tube

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

EFM8BB51F8I-C-TSSOP20
Silicon Labs
1: $1.59
166In Stock

Mfr. Part No.
EFM8BB51F8I-C-TSSOP20

Mouser Part No
634-EFM851F8ICTSOP20

Silicon Labs

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

Learn More

Datasheet

166In Stock

$1.59

$1.02

$0.903

$0.744

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

8 kB

1.28 kB

16 I/O

- 40 C

+ 125 C

Cut Tape

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F64G-B-QFN24R
Silicon Labs
1: $2.98
1,500In Stock

Mfr. Part No.
EFM8SB20F64G-B-QFN24R

Mouser Part No
634-EFM8SB64GBQFN24R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

1,500In Stock

Cut Tape

$2.98

$2.44

$2.11

$1.99

Reel

$1.49

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

CIP-51 8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit

16 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

EFM8SB20F32G-B-QFN24R
Silicon Labs
1: $3.62
865In Stock

Mfr. Part No.
EFM8SB20F32G-B-QFN24R

Mouser Part No
634-EFM8SB32GBQFN24R

Silicon Labs

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

Learn More

Datasheet

865In Stock

Cut Tape

$3.62

$2.21

$1.91

$1.79

Reel

$1.26

View

Min.: 1
Mult.: 1

: 1,500

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

Reel, Cut Tape

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

CY8C3246LTI-125
Infineon Technologies
1: $12.10
1,091In Stock

Mfr. Part No.
CY8C3246LTI-125

Mouser Part No
727-CY8C3246LTI-125

Infineon Technologies

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

Learn More

Datasheet

1,091In Stock

$12.10

$9.48

$8.43

$8.11

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

31 I/O

- 40 C

+ 85 C

Tray

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

CY8C3244LTI-130
Infineon Technologies
1: $10.07
368In Stock

Mfr. Part No.
CY8C3244LTI-130

Mouser Part No
727-CY8C3244LTI-130

Infineon Technologies

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

Learn More

Datasheet

368In Stock

$10.07

$7.83

$6.93

$6.65

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

50 MHz

16 kB

2 kB

12 bit

46 I/O

- 40 C

+ 85 C

Tray

8051 microcontroller Embedded Processors & Controllers

Types of Embedded Processors & Controllers

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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-36
QFN-40
QFN-48
QFN-68

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