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8051 microcontroller Embedded Processors & Controllers

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Types of Embedded Processors & Controllers

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Part #

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

CY8C3866LTI-068
Infineon Technologies
1: $28.77
2,059In Stock

Mfr. Part #
CY8C3866LTI-068

Mouser Part #
727-CY8C3866LTI-068

Infineon Technologies

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

Learn More

Datasheet

2,059In Stock

$28.77

$23.01

$21.57

$19.98

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

31 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU

EFM8UB20F32G-B-QFN32R
Silicon Labs
1: $4.34
10,557In Stock

Mfr. Part #
EFM8UB20F32G-B-QFN32R

Mouser Part #
634-EFM8UB32GBQFN32R

Silicon Labs

8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU

Datasheet

10,557In Stock

Cut Tape

$4.34

$3.55

$3.28

$2.90

Reel

$2.18

View

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

Reel, Cut Tape

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

CY8C3866PVI-021
Infineon Technologies
1: $28.12
1,924In Stock

Mfr. Part #
CY8C3866PVI-021

Mouser Part #
727-CY8C3866PVI-021

Infineon Technologies

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

Learn More

Datasheet

1,924In Stock

$28.12

$22.48

$20.83

$19.36

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SSOP-48

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

31 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V

AT89C51RC-24AU
Microchip Technology
1: $4.10
3,742In Stock

Mfr. Part #
AT89C51RC-24AU

Mouser Part #
556-A89C51RC-24AU

Microchip Technology

8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V

Learn More

Datasheet

3,742In Stock

$4.10

$3.76

$3.63

$3.61

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-44

8051

8 bit

24 MHz

32 kB

512 B

No ADC

32 I/O

- 40 C

+ 85 C

Tray

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

CY8C3246LTI-128
Infineon Technologies
1: $17.95
2,600In Stock

Mfr. Part #
CY8C3246LTI-128

Mouser Part #
727-CY8C3246LTI-128

Infineon Technologies

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

Learn More

Datasheet

2,600In Stock

$17.95

$14.14

$13.18

$12.14

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

48 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

EFM8LB12F64E-C-QFN24
Silicon Labs
1: $4.13
13,108In Stock

Mfr. Part #
EFM8LB12F64E-C-QFN24

Mouser Part #
634-LB12F64ECQFN24

Silicon Labs

8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU

Learn More

Datasheet

13,108In Stock

$4.13

$3.46

$3.21

$2.85

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

72 MHz

64 kB

4.25 kB

10 bit/12 bit/14 bit

20 I/O

- 40 C

+ 105 C

Tube

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

CY8C3245PVI-134
Infineon Technologies
1: $11.90
590In Stock

Mfr. Part #
CY8C3245PVI-134

Mouser Part #
727-CY8C3245PVI-134

Infineon Technologies

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

Learn More

Datasheet

590In Stock

$11.90

$9.24

$8.48

$7.77

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

CY8C3246AXI-131
Infineon Technologies
1: $18.11
774In Stock

Mfr. Part #
CY8C3246AXI-131

Mouser Part #
727-CY8C3246AXI-131

Infineon Technologies

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

Learn More

Datasheet

774In Stock

$18.11

$14.05

$13.03

$12.21

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

70 I/O

- 40 C

+ 85 C

Tray

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

CY8C3246AXI-138
Infineon Technologies
1: $19.50
620In Stock

Mfr. Part #
CY8C3246AXI-138

Mouser Part #
727-CY8C3246AXI-138

Infineon Technologies

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

Learn More

Datasheet

620In Stock

$19.50

$15.41

$13.33

$12.88

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

72 I/O

- 40 C

+ 85 C

Tray

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

CY8C3245AXI-158
Infineon Technologies
1: $11.79
678In Stock

Mfr. Part #
CY8C3245AXI-158

Mouser Part #
727-CY8C3245AXI-158

Infineon Technologies

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

Learn More

Datasheet

678In Stock

$11.79

$9.97

$8.53

$8.24

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

70 I/O

- 40 C

+ 85 C

Tray

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

CY8C3666AXI-052
Infineon Technologies
1: $21.87
338In Stock

Mfr. Part #
CY8C3666AXI-052

Mouser Part #
727-CY8C3666AXI-052

Infineon Technologies

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

Learn More

Datasheet

338In Stock

$21.87

$17.33

$15.03

$14.55

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

70 I/O

- 40 C

+ 85 C

Tray

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

EFM8UB10F8G-C-QFN20R
Silicon Labs
1: $1.85
52,913In Stock

Mfr. Part #
EFM8UB10F8G-C-QFN20R

Mouser Part #
634-8UB10F8GCQFN20R

Silicon Labs

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

Datasheet

52,913In Stock

Cut Tape

$1.85

$1.44

$1.30

$1.21

Reel

$1.08

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

CIP-51 8051

8 bit

50 MHz

8 kB

2.25 kB

12 bit

13 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

CY8C3866LTI-067
Infineon Technologies
1: $27.57
286In Stock

Mfr. Part #
CY8C3866LTI-067

Mouser Part #
727-CY8C3866LTI-067

Infineon Technologies

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

Learn More

Datasheet

286In Stock

$27.57

$22.65

$21.16

$19.66

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

31 I/O

- 40 C

+ 85 C

Tray

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

CY8C3446AXI-105
Infineon Technologies
1: $19.41
3,435In Stock

Mfr. Part #
CY8C3446AXI-105

Mouser Part #
727-CY8C3446AXI-105

Infineon Technologies

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

Learn More

Datasheet

3,435In Stock

$19.41

$15.31

$13.23

$12.81

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

70 I/O

- 40 C

+ 85 C

Tray

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

CY8C3246PVI-122
Infineon Technologies
1: $13.08
586In Stock

Mfr. Part #
CY8C3246PVI-122

Mouser Part #
727-CY8C3246PVI-122

Infineon Technologies

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

Learn More

Datasheet

586In Stock

$13.08

$10.19

$9.35

$8.19

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SSOP-48

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tube

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

CY8C3446AXI-099
Infineon Technologies
1: $19.64
355In Stock

Mfr. Part #
CY8C3446AXI-099

Mouser Part #
727-CY8C3446AXI-099

Infineon Technologies

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

Learn More

Datasheet

355In Stock

$19.64

$15.52

$13.43

$12.99

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

72 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

EFM8BB31F64G-D-QFP32R
Silicon Labs
1: $5.64
9,667In Stock

Mfr. Part #
EFM8BB31F64G-D-QFP32R

Mouser Part #
634-EF8BB31F64GDP32R

Silicon Labs

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

Learn More

Datasheet

9,667In Stock

Cut Tape

$5.64

$3.73

$3.39

$2.89

Reel

$2.46

View

Min.: 1
Mult.: 1

: 500

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

Reel, Cut Tape

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

AT89LP52-20JU
Microchip Technology
1: $4.49
130In Stock

Mfr. Part #
AT89LP52-20JU

Mouser Part #
556-AT89LP52-20JU

Microchip Technology

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

Learn More

Datasheet

130In Stock

$4.49

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

20 MHz

8 kB

256 B

No ADC

36 I/O

- 40 C

+ 85 C

Tube

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

EFM8SB20F64G-B-QFN24
Silicon Labs
1: $3.55
2,683In Stock

Mfr. Part #
EFM8SB20F64G-B-QFN24

Mouser Part #
634-EFM8SBF64GBQFN24

Silicon Labs

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

Learn More

Datasheet

2,683In Stock

$3.55

$2.98

$2.50

$2.37

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit

16 I/O

- 40 C

+ 85 C

Tube

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

EFM8SB10F8A-A-QFN24
Silicon Labs
1: $3.15
1,531In Stock

Mfr. Part #
EFM8SB10F8A-A-QFN24

Mouser Part #
634-FM8SB10F8AAQFN24

Silicon Labs

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

Learn More

Datasheet

1,531In Stock

$3.15

$2.89

$2.83

$2.77

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

CIP-51 8051

8 bit

25 MHz

8 kB

512 B

12 bit

17 I/O

- 40 C

+ 85 C

AEC-Q100

Tube

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

EFM8BB10F2I-A-QFN20
Silicon Labs
1: $1.20
3,158In Stock

Mfr. Part #
EFM8BB10F2I-A-QFN20

Mouser Part #
634-EFM8BB10F2IAFN20

Silicon Labs

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

Learn More

Datasheet

3,158In Stock

$1.20

$1.03

$0.954

$0.839

View

Min.: 1
Mult.: 1

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

Tube

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU

EFM8BB10F4G-A-QFN20R
Silicon Labs
1: $1.53
4,518In Stock

Mfr. Part #
EFM8BB10F4G-A-QFN20R

Mouser Part #
634-8BB10F4GAQF20R

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

4,518In Stock

Cut Tape

$1.53

$1.28

$1.18

$1.04

Reel

$0.745

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

CIP-51 8051

8 bit

25 MHz

4 kB

512 B

12 bit

16 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

EFM8BB51F8G-C-QFN20R
Silicon Labs
1: $1.27
9,875In Stock

Mfr. Part #
EFM8BB51F8G-C-QFN20R

Mouser Part #
634-EFM851F8GCQFN20R

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

9,875In Stock

Cut Tape

$1.27

$1.09

$1.01

$0.902

Reel

$0.615

View

Min.: 1
Mult.: 1

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel, Cut Tape

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: $1.59
2,251In Stock

Mfr. Part #
EFM8BB10F8I-A-SOIC16

Mouser Part #
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

2,251In Stock

$1.59

$1.35

$1.18

$1.13

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: $2.52
11,565In Stock

Mfr. Part #
EFM8BB52F32I-C-QFN32R

Mouser Part #
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

11,565In Stock

Cut Tape

$2.52

$1.61

$1.44

$1.18

Reel

$0.748

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

8051 microcontroller Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

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