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8051 Core 8-bit Microcontrollers - MCU

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Results: 685

Applied Filters:

Core = 8051

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Part #

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU

C8051F005-GQ
Silicon Labs
1: $44.07
17In Stock
800Expected 2026-04-20
NRND

Mfr. Part #
C8051F005-GQ

Mouser Part #
634-C8051F005-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU

Datasheet

17In Stock

800Expected 2026-04-20

$44.07

$36.78

$34.58

$31.30

View

Min.: 1
Mult.: 1

8051

32 kB

2.25 kB

TQFP-64

25 MHz

12 bit

32 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F005

Tray

8-bit Microcontrollers - MCU 64KB,16ADC,100Pin MCU

C8051F064-GQ
Silicon Labs
1: $41.91
2In Stock
NRND

Mfr. Part #
C8051F064-GQ

Mouser Part #
634-C8051F064-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 64KB,16ADC,100Pin MCU

Datasheet

2In Stock

$41.91

$34.95

$30.53

$29.55

View

Min.: 1
Mult.: 1

8051

64 kB

4.25 kB

TQFP-100

25 MHz

16 bit

59 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F064

Tray

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB LFO 8-bit MCU

C8051F334-GM
Silicon Labs
1: $12.74
47In Stock
NRND

Mfr. Part #
C8051F334-GM

Mouser Part #
634-C8051F334-GM

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB LFO 8-bit MCU

Datasheet

47In Stock

$12.74

$8.90

$8.49

$7.37

View

Min.: 1
Mult.: 1

8051

2 kB

768 B

QFN-20

25 MHz

10 bit

17 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F334

Tube

8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20

C8051F850-C-IM
Silicon Labs
1: $6.63
93In Stock
NRND

Mfr. Part #
C8051F850-C-IM

Mouser Part #
634-C8051F850-C-IM

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20

Learn More

Datasheet

93In Stock

$6.63

$4.28

$3.02

$2.62

View

Min.: 1
Mult.: 1

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

+ 125 C

C8051F850

Tube

8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051

ML51BB9AE
Nuvoton
1: $1.23
800In Stock

Mfr. Part #
ML51BB9AE

Mouser Part #
503-ML51BB9AE

Nuvoton

8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051

Learn More

Datasheet

800In Stock

$1.23

$1.05

$0.889

$0.838

View

Min.: 1
Mult.: 1

8051

16 kB

1 kB

MSOP-10

24 MHz

12 bit

7 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tube

8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051

ML51FB9AE
Nuvoton
1: $1.41
666In Stock

Mfr. Part #
ML51FB9AE

Mouser Part #
503-ML51FB9AE

Nuvoton

8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051

Learn More

Datasheet

666In Stock

$1.41

$1.20

$1.02

$0.967

View

Min.: 1
Mult.: 1

8051

16 kB

1 kB

TSSOP-20

24 MHz

12 bit

16 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tube

8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051

ML51XB9AE
Nuvoton
1: $1.41
980In Stock

Mfr. Part #
ML51XB9AE

Mouser Part #
503-ML51XB9AE

Nuvoton

8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051

Learn More

Datasheet

980In Stock

$1.41

$1.20

$1.12

$0.999

View

Min.: 1
Mult.: 1

8051

16 kB

1 kB

QFN-20

24 MHz

12 bit

17 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tray

8-bit Microcontrollers - MCU 64KB Flash, 4KB SRAM, 2 CHs of SPI,1T/8051,LCD,TK

ML56LD1AE
Nuvoton
1: $3.28
180In Stock

Mfr. Part #
ML56LD1AE

Mouser Part #
503-ML56LD1AE

Nuvoton

8-bit Microcontrollers - MCU 64KB Flash, 4KB SRAM, 2 CHs of SPI,1T/8051,LCD,TK

Learn More

Datasheet

180In Stock

$3.28

$2.78

$2.56

$2.30

View

Min.: 1
Mult.: 1

8051

64 kB

4 kB

LQFP-48

24 MHz

12 bit

42 I/O

1.8 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tray

8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM

MS51BA9AE
Nuvoton
1: $0.998
600In Stock

Mfr. Part #
MS51BA9AE

Mouser Part #
503-MS51BA9AE

Nuvoton

8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM

Learn More

Datasheet

600In Stock

$0.998

$0.855

$0.725

$0.683

View

Min.: 1
Mult.: 1

8051

8 kB

1 kB

MSOP-10

24 MHz

12 bit

8 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tube

8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM

MS51EC0AE
Nuvoton
1: $1.41
1,000In Stock

Mfr. Part #
MS51EC0AE

Mouser Part #
503-MS51EC0AE

Nuvoton

8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM

Learn More

Datasheet

1,000In Stock

$1.41

$1.20

$1.06

$0.998

View

Min.: 1
Mult.: 1

8051

32 kB

2 kB

TSSOP-28

24 MHz

12 bit

26 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tube

8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM

MS51FB9AE
Nuvoton
1: $1.07
3,007In Stock

Mfr. Part #
MS51FB9AE

Mouser Part #
503-MS51FB9AE

Nuvoton

8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM

Learn More

Datasheet

3,007In Stock

$1.07

$0.918

$0.783

$0.737

View

Min.: 1
Mult.: 1

8051

16 kB

1 kB

TSSOP-20

24 MHz

12 bit

18 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tube

8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM

MS51FC0AE
Nuvoton
1: $1.23
814In Stock

Mfr. Part #
MS51FC0AE

Mouser Part #
503-MS51FC0AE

Nuvoton

8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM

Learn More

Datasheet

814In Stock

$1.23

$1.05

$1.00

$0.844

View

Min.: 1
Mult.: 1

8051

32 kB

2 kB

TSSOP-20

24 MHz

12 bit

18 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tube

8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM

MS51PC0AE
Nuvoton
1: $1.69
1,353In Stock

Mfr. Part #
MS51PC0AE

Mouser Part #
503-MS51PC0AE

Nuvoton

8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM

Learn More

Datasheet

1,353In Stock

$1.69

$1.44

$1.33

$1.19

View

Min.: 1
Mult.: 1

8051

32 kB

2 kB

LQFP-32

24 MHz

12 bit

30 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tray

8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM

MS51TC0AE
Nuvoton
1: $1.41
975In Stock

Mfr. Part #
MS51TC0AE

Mouser Part #
503-MS51TC0AE

Nuvoton

8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM

Learn More

Datasheet

975In Stock

$1.41

$1.20

$1.12

$0.999

View

Min.: 1
Mult.: 1

8051

32 kB

2 kB

QFN-33

24 MHz

12 bit

30 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tray

8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width

MS51XB9AE
Nuvoton
1: $0.921
899In Stock

Mfr. Part #
MS51XB9AE

Mouser Part #
503-MS51XB9AE

Nuvoton

8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width

Learn More

Datasheet

899In Stock

$0.921

$0.795

$0.741

$0.662

View

Min.: 1
Mult.: 1

8051

16 kB

1 kB

QFN-20

24 MHz

12 bit

18 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

Tray

8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V

AT89C2051-12PU
Microchip Technology
1: $3.19
671In Stock

Mfr. Part #
AT89C2051-12PU

Mouser Part #
556-A89C205112PU

Microchip Technology

8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V

Datasheet

671In Stock

$3.19

$2.93

$2.64

Min.: 1
Mult.: 1

8051

2 kB

128 B

PDIP-20

12 MHz

No ADC

15 I/O

2.7 V

6 V

Through Hole

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT

AT89C51CC03CA-SLSUM
Microchip Technology
1: $17.78
97In Stock

Mfr. Part #
AT89C51CC03CA-SLSUM

Mouser Part #
556-A89C51C03CASLSUM

Microchip Technology

8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT

Learn More

Datasheet

97In Stock

$17.78

$16.33

$14.77

Min.: 1
Mult.: 1

8051

64 kB

2 kB

PLCC-44

60 MHz

10 bit

36 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT

AT89C51CC03UA-SLSUM
Microchip Technology
1: $17.78
134In Stock

Mfr. Part #
AT89C51CC03UA-SLSUM

Mouser Part #
556-A89C51C03UASLSUM

Microchip Technology

8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT

Learn More

Datasheet

134In Stock

$17.78

$16.33

$14.77

Min.: 1
Mult.: 1

8051

64 kB

2 kB

PLCC-44

60 MHz

10 bit

36 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind

AT89C51RB2-3CSUM
Microchip Technology
1: $11.51
77In Stock
140Expected 2026-03-03

Mfr. Part #
AT89C51RB2-3CSUM

Mouser Part #
556-A89C51RB2-3CSUM

Microchip Technology

8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind

Learn More

Datasheet

77In Stock

140Expected 2026-03-03

$11.51

$10.56

$9.56

Min.: 1
Mult.: 1

8051

16 kB

1.25 kB

PDIP-40

60 MHz

No ADC

32 I/O

2.7 V

5.5 V

Through Hole

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V

AT89C51RD2-SLRUM
Microchip Technology
1: $14.15
136In Stock

Mfr. Part #
AT89C51RD2-SLRUM

Mouser Part #
556-A89C51RD2SLRUM

Microchip Technology

8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V

Learn More

Datasheet

136In Stock

Cut Tape

$14.15

$12.99

$11.76

Reel

$11.76

Min.: 1
Mult.: 1

Reel: 500

8051

64 kB

2 kB

PLCC-44

60 MHz

34 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU SINGLE CYCLE 2K FLASH 20MHZ 2.4-5.5V

AT89LP2052-20PU
Microchip Technology
1: $4.14
265In Stock

Mfr. Part #
AT89LP2052-20PU

Mouser Part #
556-A89LP2052-20PU

Microchip Technology

8-bit Microcontrollers - MCU SINGLE CYCLE 2K FLASH 20MHZ 2.4-5.5V

Datasheet

265In Stock

$4.14

$3.78

Min.: 1
Mult.: 1

8051

2 kB

256 B

PDIP-20

20 MHz

No ADC

15 I/O

2.4 V

5.5 V

Through Hole

8 bit

- 40 C

+ 85 C

89LP

Tube

8-bit Microcontrollers - MCU SINGLE CYC 4K FLASH -20MHZ 2.4-5.5V

AT89LP4052-20XU
Microchip Technology
1: $4.30
73In Stock

Mfr. Part #
AT89LP4052-20XU

Mouser Part #
556-A89LP4052-20XU

Microchip Technology

8-bit Microcontrollers - MCU SINGLE CYC 4K FLASH -20MHZ 2.4-5.5V

Datasheet

73In Stock

$4.30

$3.93

$3.87

Min.: 1
Mult.: 1

8051

4 kB

256 B

TSSOP-20

20 MHz

No ADC

15 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89LP

Tube

8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V

AT89LP51RD2-20AAU
Microchip Technology
1: $7.84
160In Stock
160Expected 2026-04-16

Mfr. Part #
AT89LP51RD2-20AAU

Mouser Part #
556-AT89LP51RD220AAU

Microchip Technology

8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V

Learn More

Datasheet

160In Stock

160Expected 2026-04-16

$7.84

$7.20

$6.52

Min.: 1
Mult.: 1

8051

64 kB

256 B

LQFP-44

20 MHz

10 bit

40 I/O

2.4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU

C8051F502-IQ
Silicon Labs
1: $16.69
46In Stock
1,250Expected 2026-03-27
End of Life

Mfr. Part #
C8051F502-IQ

Mouser Part #
634-C8051F502-IQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU

Datasheet

46In Stock

1,250Expected 2026-03-27

$16.69

$13.83

$12.89

$11.76

View

Min.: 1
Mult.: 1

8051

64 kB

4.25 kB

QFP-32

50 MHz

12 bit

25 I/O

1.8 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 125 C

C8051F502

AEC-Q100

Tray

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

C8051F381-GMR
Silicon Labs
1: $9.44
90In Stock

Mfr. Part #
C8051F381-GMR

Mouser Part #
634-C8051F381-GMR

Silicon Labs

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

Datasheet

90In Stock

Cut Tape

$9.44

$7.84

$7.29

$6.59

View

Reel

$5.68

Min.: 1
Mult.: 1

Reel: 1,500

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

C8051F381

Reel, Cut Tape

8051 Core 8-bit Microcontrollers - MCU

Mouser Electronics®

Company

Resources

Support

128 B
256 B
512 B
768 B
1 kB
1.2 kB
1.25 kB
1.28 kB
1.54 kB
1.75 kB
2 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

LQFP-32
LQFP-44
LQFP-48
LQFP-64
MSOP-10
PDIP-20
PDIP-40
PLCC-28
PLCC-44
PLCC-68
PQFP-44
PQFP-48
QFN-11
QFN-20
QFN-24
QFN-28
QFN-32
QFN-33
QFN-40
QFN-48

4 I/O
6 I/O
7 I/O
8 I/O
11 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
24 I/O
25 I/O
26 I/O
28 I/O
29 I/O
30 I/O
31 I/O

80C
89C
89LP
89LS
89S
AT89C55WD
C8051F005
C8051F006
C8051F007
C8051F015
C8051F016
C8051F017
C8051F018
C8051F019
C8051F020
C8051F021
C8051F022
C8051F023
C8051F040
C8051F041