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8051 Core Microcontrollers - MCU

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Types of Microcontrollers - MCU

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Core = 8051

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Part #

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

ML51FB9AE
Nuvoton
1: 5,90 kr.
666In Stock

Mfr. Part No.
ML51FB9AE

Mouser Part No
503-ML51FB9AE

Nuvoton

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

Learn More

Datasheet

666In Stock

5,90 kr.

5,04 kr.

4,28 kr.

4,04 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

8051

8 bit

24 MHz

16 kB

1 kB

12 bit

16 I/O

1.8 V

5.5 V

+ 105 C

Tube

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

ML51XB9AE
Nuvoton
1: 5,90 kr.
980In Stock

Mfr. Part No.
ML51XB9AE

Mouser Part No
503-ML51XB9AE

Nuvoton

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

Learn More

Datasheet

980In Stock

5,90 kr.

5,04 kr.

4,68 kr.

4,18 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

8051

8 bit

24 MHz

16 kB

1 kB

12 bit

17 I/O

1.8 V

5.5 V

+ 105 C

Tray

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

ML56LD1AE
Nuvoton
1: 13,73 kr.
180In Stock

Mfr. Part No.
ML56LD1AE

Mouser Part No
503-ML56LD1AE

Nuvoton

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

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Datasheet

180In Stock

13,73 kr.

11,64 kr.

10,74 kr.

9,62 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

LQFP-48

8051

8 bit

24 MHz

64 kB

4 kB

12 bit

42 I/O

1.8 V

3.6 V

+ 105 C

Tray

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

MS51BA9AE
Nuvoton
1: 4,17 kr.
600In Stock

Mfr. Part No.
MS51BA9AE

Mouser Part No
503-MS51BA9AE

Nuvoton

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

Learn More

Datasheet

600In Stock

4,17 kr.

3,57 kr.

3,03 kr.

2,86 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-10

8051

8 bit

24 MHz

8 kB

1 kB

12 bit

8 I/O

2.4 V

5.5 V

+ 105 C

Tube

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

MS51EC0AE
Nuvoton
1: 5,90 kr.
1.000In Stock

Mfr. Part No.
MS51EC0AE

Mouser Part No
503-MS51EC0AE

Nuvoton

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

Learn More

Datasheet

1.000In Stock

5,90 kr.

5,04 kr.

4,42 kr.

4,17 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-28

8051

8 bit

24 MHz

32 kB

2 kB

12 bit

26 I/O

2.4 V

5.5 V

+ 105 C

Tube

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

MS51FB9AE
Nuvoton
1: 4,49 kr.
3.032In Stock

Mfr. Part No.
MS51FB9AE

Mouser Part No
503-MS51FB9AE

Nuvoton

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

Learn More

Datasheet

3.032In Stock

4,49 kr.

3,83 kr.

3,27 kr.

3,08 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

8051

8 bit

24 MHz

16 kB

1 kB

12 bit

18 I/O

2.4 V

5.5 V

+ 105 C

Tube

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

MS51FC0AE
Nuvoton
1: 5,13 kr.
814In Stock

Mfr. Part No.
MS51FC0AE

Mouser Part No
503-MS51FC0AE

Nuvoton

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

Learn More

Datasheet

814In Stock

5,13 kr.

4,39 kr.

4,19 kr.

3,53 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

8051

8 bit

24 MHz

32 kB

2 kB

12 bit

18 I/O

2.4 V

5.5 V

+ 105 C

Tube

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

MS51PC0AE
Nuvoton
1: 7,06 kr.
1.353In Stock

Mfr. Part No.
MS51PC0AE

Mouser Part No
503-MS51PC0AE

Nuvoton

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

Learn More

Datasheet

1.353In Stock

7,06 kr.

6,00 kr.

5,57 kr.

4,98 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

LQFP-32

8051

8 bit

24 MHz

32 kB

2 kB

12 bit

30 I/O

2.4 V

5.5 V

+ 105 C

Tray

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

MS51TC0AE
Nuvoton
1: 5,90 kr.
975In Stock

Mfr. Part No.
MS51TC0AE

Mouser Part No
503-MS51TC0AE

Nuvoton

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

Learn More

Datasheet

975In Stock

5,90 kr.

5,04 kr.

4,68 kr.

4,18 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-33

8051

8 bit

24 MHz

32 kB

2 kB

12 bit

30 I/O

2.4 V

5.5 V

+ 105 C

Tray

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

MS51XB9AE
Nuvoton
1: 3,85 kr.
899In Stock

Mfr. Part No.
MS51XB9AE

Mouser Part No
503-MS51XB9AE

Nuvoton

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

Learn More

Datasheet

899In Stock

3,85 kr.

3,32 kr.

3,10 kr.

2,77 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

8051

8 bit

24 MHz

16 kB

1 kB

12 bit

18 I/O

2.4 V

5.5 V

+ 105 C

Tray

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

AT89C2051-12PU
Microchip Technology
1: 13,35 kr.
671In Stock

Mfr. Part No.
AT89C2051-12PU

Mouser Part No
556-A89C205112PU

Microchip Technology

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

Datasheet

671In Stock

13,35 kr.

12,23 kr.

11,04 kr.

Min.: 1
Mult.: 1

Through Hole

PDIP-20

8051

8 bit

12 MHz

2 kB

128 B

No ADC

15 I/O

2.7 V

6 V

+ 85 C

Tube

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

AT89C51CC03CA-SLSUM
Microchip Technology
1: 74,30 kr.
97In Stock

Mfr. Part No.
AT89C51CC03CA-SLSUM

Mouser Part No
556-A89C51C03CASLSUM

Microchip Technology

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

Learn More

Datasheet

97In Stock

74,30 kr.

68,26 kr.

61,69 kr.

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

64 kB

2 kB

10 bit

36 I/O

3 V

5.5 V

+ 85 C

Tube

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

AT89C51CC03UA-SLSUM
Microchip Technology
1: 74,30 kr.
134In Stock

Mfr. Part No.
AT89C51CC03UA-SLSUM

Mouser Part No
556-A89C51C03UASLSUM

Microchip Technology

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

Learn More

Datasheet

134In Stock

74,30 kr.

68,26 kr.

61,69 kr.

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

64 kB

2 kB

10 bit

36 I/O

3 V

5.5 V

+ 85 C

Tube

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

AT89C51RB2-3CSUM
Microchip Technology
1: 48,12 kr.
77In Stock
140Expected 03/03/2026

Mfr. Part No.
AT89C51RB2-3CSUM

Mouser Part No
556-A89C51RB2-3CSUM

Microchip Technology

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

Learn More

Datasheet

77In Stock

140Expected 03/03/2026

48,12 kr.

44,16 kr.

39,99 kr.

Min.: 1
Mult.: 1

Through Hole

PDIP-40

8051

8 bit

60 MHz

16 kB

1.25 kB

No ADC

32 I/O

2.7 V

5.5 V

+ 85 C

Tube

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

AT89C51RD2-SLRUM
Microchip Technology
1: 59,16 kr.
136In Stock

Mfr. Part No.
AT89C51RD2-SLRUM

Mouser Part No
556-A89C51RD2SLRUM

Microchip Technology

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

Learn More

Datasheet

136In Stock

Cut Tape

59,16 kr.

54,31 kr.

49,16 kr.

Reel

49,16 kr.

Min.: 1
Mult.: 1

Reel: 500

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

64 kB

2 kB

34 I/O

2.7 V

5.5 V

+ 85 C

Reel, Cut Tape

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

AT89LP2052-20PU
Microchip Technology
1: 17,31 kr.
265In Stock

Mfr. Part No.
AT89LP2052-20PU

Mouser Part No
556-A89LP2052-20PU

Microchip Technology

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

Datasheet

265In Stock

17,31 kr.

16,04 kr.

Min.: 1
Mult.: 1

Through Hole

PDIP-20

8051

8 bit

20 MHz

2 kB

256 B

No ADC

15 I/O

2.4 V

5.5 V

+ 85 C

Tube

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

AT89LP4052-20XU
Microchip Technology
1: 17,98 kr.
73In Stock

Mfr. Part No.
AT89LP4052-20XU

Mouser Part No
556-A89LP4052-20XU

Microchip Technology

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

Datasheet

73In Stock

17,98 kr.

16,41 kr.

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

8051

8 bit

20 MHz

4 kB

256 B

No ADC

15 I/O

2.4 V

5.5 V

+ 85 C

Tube

8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU

C8051F581-IM
Silicon Labs
1: 106,38 kr.
274In Stock

Mfr. Part No.
C8051F581-IM

Mouser Part No
634-C8051F581-IM

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU

Learn More

Datasheet

274In Stock

106,38 kr.

85,34 kr.

79,37 kr.

72,06 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

8051

8 bit

50 MHz

128 kB

8.25 kB

12 bit

40 I/O

1.8 V

5.25 V

+ 125 C

AEC-Q100

Tube

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

C8051F502-IQ
Silicon Labs
1: 69,75 kr.
46In Stock
1.250Expected 27/03/2026
End of Life

Mfr. Part No.
C8051F502-IQ

Mouser Part No
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 27/03/2026

69,75 kr.

57,82 kr.

53,86 kr.

49,16 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-32

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

25 I/O

1.8 V

5.25 V

+ 125 C

AEC-Q100

Tray

8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V

AT89C5131A-TISUL
Microchip Technology
1: 67,81 kr.
34In Stock

Mfr. Part No.
AT89C5131A-TISUL

Mouser Part No
556-A89C5131ATISUL

Microchip Technology

8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V

Datasheet

34In Stock

67,81 kr.

62,29 kr.

Min.: 1
Mult.: 1

SMD/SMT

SOIC-28

8051

8 bit

48 MHz

32 kB

1 kB

No ADC

18 I/O

3 V

3.6 V

+ 85 C

Tube

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

AT89C51CC03CA-RDTUM
Microchip Technology
1: 70,80 kr.
4In Stock

Mfr. Part No.
AT89C51CC03CA-RDTUM

Mouser Part No
556-A89C51C03CARDTUM

Microchip Technology

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

Learn More

Datasheet

4In Stock

70,80 kr.

64,98 kr.

58,86 kr.

Min.: 1
Mult.: 1

SMD/SMT

VQFP-64

8051

8 bit

60 MHz

64 kB

2 kB

10 bit

36 I/O

3 V

5.5 V

+ 85 C

Tray

8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V

AT89C51RC2-SLSUL
Microchip Technology
1: 62,07 kr.
4In Stock

Mfr. Part No.
AT89C51RC2-SLSUL

Mouser Part No
556-A89C51RC2SLSUL

Microchip Technology

8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V

Learn More

Datasheet

4In Stock

62,07 kr.

56,85 kr.

51,40 kr.

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

32 kB

1.25 kB

No ADC

32 I/O

2.7 V

3.6 V

+ 85 C

Tube

RF Microcontrollers - MCU RF Bluetooth SMART S OC with USB BLE A 5 A 595-CC2540F128RHAR

CC2540F128RHAT
Texas Instruments
1: 42,97 kr.
250In Stock

Mfr. Part No.
CC2540F128RHAT

Mouser Part No
595-CC2540F128RHAT

Texas Instruments

RF Microcontrollers - MCU RF Bluetooth SMART S OC with USB BLE A 5 A 595-CC2540F128RHAR

Learn More

Datasheet

250In Stock

Cut Tape

42,97 kr.

35,14 kr.

32,90 kr.

30,14 kr.

Reel

28,65 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

SMD/SMT

VQFN-40

8051

8 bit

128 kB

8 kB

2 V

3.6 V

+ 85 C

Reel, Cut Tape, MouseReel

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

C8051F381-GMR
Silicon Labs
1: 39,46 kr.
90In Stock

Mfr. Part No.
C8051F381-GMR

Mouser Part No
634-C8051F381-GMR

Silicon Labs

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

Datasheet

90In Stock

Cut Tape

39,46 kr.

32,75 kr.

30,51 kr.

27,53 kr.

View

Reel

23,72 kr.

Min.: 1
Mult.: 1

Reel: 1.500

SMD/SMT

QFN-32

8051

8 bit

48 MHz

64 kB

4.25 kB

10 bit

25 I/O

2.7 V

5.25 V

+ 85 C

Reel, Cut Tape

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

C8051F383-GM
Silicon Labs
1: 33,79 kr.
39In Stock

Mfr. Part No.
C8051F383-GM

Mouser Part No
634-C8051F383-GM

Silicon Labs

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

Learn More

Datasheet

39In Stock

33,79 kr.

28,12 kr.

24,10 kr.

22,98 kr.

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

8 bit

48 MHz

32 kB

2.25 kB

10 bit

25 I/O

2.7 V

5.25 V

+ 85 C

Tube

8051 Core Microcontrollers - MCU

Types of Microcontrollers - MCU

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LGA-42
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-36

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
4352 B

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