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8051 Core 8-bit Microcontrollers - MCU

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Results: 695

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Core = 8051

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Part #

8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers

DS89C450-QNL+
Analog Devices / Maxim Integrated
1: $48.30
55In Stock

Mfr. Part No.
DS89C450-QNL+

Mouser Part No
700-DS89C450-QNL

Analog Devices / Maxim Integrated

8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers

Datasheet

55In Stock

$48.30

$41.31

$39.57

$35.87

$34.62

Min.: 1
Mult.: 1

8051

64 kB

1 kB

PLCC-44

33 MHz

No ADC

32 I/O

4.5 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

DS89C450

Tube

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

CY8C3245LTI-139
Infineon Technologies
1: $8.92
550In Stock

Mfr. Part No.
CY8C3245LTI-139

Mouser Part No
727-CY8C3245LTI-139

Infineon Technologies

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

Learn More

Datasheet

550In Stock

$8.92

$6.94

$6.44

$5.90

View

Min.: 1
Mult.: 1

8051

32 kB

4 kB

QFN-48

50 MHz

12 bit

29 I/O

1.71 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

CY8C3245

Tray

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

CY8C3246AXI-138
Infineon Technologies
1: $14.03
646In Stock

Mfr. Part No.
CY8C3246AXI-138

Mouser Part No
727-CY8C3246AXI-138

Infineon Technologies

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

Learn More

Datasheet

646In Stock

$14.03

$11.23

$9.82

$9.52

View

Min.: 1
Mult.: 1

8051

64 kB

8 kB

TQFP-100

50 MHz

12 bit

72 I/O

1.71 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

CY8C3246

Tray

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

CY8C3446AXI-099
Infineon Technologies
1: $14.54
355In Stock

Mfr. Part No.
CY8C3446AXI-099

Mouser Part No
727-CY8C3446AXI-099

Infineon Technologies

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

Learn More

Datasheet

355In Stock

$14.54

$11.48

$9.93

$9.61

View

Min.: 1
Mult.: 1

8051

64 kB

8 kB

TQFP-100

50 MHz

12 bit

72 I/O

1.71 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

CY8C3446

Tray

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

CY8C3866AXI-040
Infineon Technologies
1: $24.91
131In Stock

Mfr. Part No.
CY8C3866AXI-040

Mouser Part No
727-CY8C3866AXI-040

Infineon Technologies

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

Learn More

Datasheet

131In Stock

$24.91

$20.03

$17.55

$17.04

View

Min.: 1
Mult.: 1

8051

64 kB

8 kB

TQFP-100

67 MHz

20 bit

72 I/O

1.71 V

1.89 V

SMD/SMT

8 bit

- 40 C

+ 85 C

CY8C3866

Tray

8-bit Microcontrollers - MCU 64K Flash 8K SRAM 8bit 67 MHz

CY8C3866AXI-208
Infineon Technologies
1: $21.93
262In Stock

Mfr. Part No.
CY8C3866AXI-208

Mouser Part No
727-CY8C3866AXI-208

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 8K SRAM 8bit 67 MHz

Learn More

Datasheet

262In Stock

$21.93

$17.56

$15.34

$14.89

View

Min.: 1
Mult.: 1

8051

64 kB

8 kB

TQFP-100

67 MHz

20 bit

62 I/O

1.71 V

1.89 V

SMD/SMT

8 bit

- 40 C

+ 85 C

CY8C3866

Tray

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

CY8C3866PVI-070
Infineon Technologies
1: $18.78
287In Stock

Mfr. Part No.
CY8C3866PVI-070

Mouser Part No
727-CY8C3866PVI-070

Infineon Technologies

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

Learn More

Datasheet

287In Stock

$18.78

$15.00

$13.56

$13.33

$12.60

Min.: 1
Mult.: 1

8051

64 kB

8 kB

SSOP-48

67 MHz

20 bit

29 I/O

1.71 V

1.89 V

SMD/SMT

8 bit

- 40 C

+ 85 C

CY8C3866

Tube

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

C8051F042-GQR
Silicon Labs
1: $28.68
75In Stock
NRND

Mfr. Part No.
C8051F042-GQR

Mouser Part No
634-C8051F042-GQR

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

Datasheet

75In Stock

Cut Tape

$28.68

$24.83

Reel

$18.27

View

Min.: 1
Mult.: 1

Reel: 250

8051

64 kB

4.25 kB

TQFP-100

25 MHz

10 bit

64 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F042

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

C8051F043-GQR
Silicon Labs
1: $27.52
287In Stock
NRND

Mfr. Part No.
C8051F043-GQR

Mouser Part No
634-C8051F043-GQR

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU

Datasheet

287In Stock

Cut Tape

$27.52

$21.53

$20.56

$18.39

View

Reel

$16.69

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

8051

64 kB

4.25 kB

TQFP-64

25 MHz

8 bit, 10 bit

32 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F043

Reel, Cut Tape, MouseReel

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

C8051F064-GQR
Silicon Labs
1: $30.61
240In Stock
NRND

Mfr. Part No.
C8051F064-GQR

Mouser Part No
634-C8051F064-GQR

NRND

Silicon Labs

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

Datasheet

240In Stock

Cut Tape

$30.61

$25.88

$24.71

$22.11

Reel

$21.02

View

Min.: 1
Mult.: 1

Reel: 250

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

Reel, Cut Tape

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

C8051F127-GQ
Silicon Labs
1: $30.37
197In Stock
NRND

Mfr. Part No.
C8051F127-GQ

Mouser Part No
634-C8051F127-GQ

NRND

Silicon Labs

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

Datasheet

197In Stock

$30.37

$25.41

$25.13

Min.: 1
Mult.: 1

8051

128 kB

8.25 kB

TQFP-64

50 MHz

8 bit, 10 bit

32 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F127

Tray

8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU

C8051F130-GQR
Silicon Labs
1: $35.99
341In Stock
NRND

Mfr. Part No.
C8051F130-GQR

Mouser Part No
634-C8051F130-GQR

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU

Datasheet

341In Stock

Cut Tape

$35.99

$32.12

$30.68

$27.44

Reel

$26.17

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

8051

128 kB

8.25 kB

TQFP-100

100 MHz

64 I/O

3 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F130

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 100MIPS,64KB,10ADC,100Pin MCU

C8051F132-GQ
Silicon Labs
1: $28.28
117In Stock
NRND

Mfr. Part No.
C8051F132-GQ

Mouser Part No
634-C8051F132-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 100MIPS,64KB,10ADC,100Pin MCU

Datasheet

117In Stock

$28.28

$23.61

$20.63

$19.97

View

Min.: 1
Mult.: 1

8051

64 kB

8.25 kB

TQFP-100

100 MHz

10 bit

64 I/O

3 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F132

Tray

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

C8051F330-GM
Silicon Labs
1: $8.89
487In Stock
NRND

Mfr. Part No.
C8051F330-GM

Mouser Part No
634-C8051F330-GM

NRND

Silicon Labs

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

Datasheet

487In Stock

$8.89

$7.37

$6.27

$6.01

View

Min.: 1
Mult.: 1

8051

8 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

C8051F330

Tube

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU

C8051F412-GQ
Silicon Labs
1: $14.00
496In Stock
1,250Expected 2026/05/01
NRND

Mfr. Part No.
C8051F412-GQ

Mouser Part No
634-C8051F412-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU

Datasheet

496In Stock

1,250Expected 2026/05/01

$14.00

$11.33

$10.39

$9.42

$9.00

Min.: 1
Mult.: 1

8051

16 kB

2.31 kB

LQFP-32

50 MHz

12 bit

24 I/O

2 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F412

Tray

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU

C8051F412-GQR
Silicon Labs
1: $17.19
294In Stock
NRND

Mfr. Part No.
C8051F412-GQR

Mouser Part No
634-C8051F412-GQR

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU

Datasheet

294In Stock

Cut Tape

$17.19

$13.49

$12.93

$11.40

Reel

$10.11

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

8051

16 kB

2.31 kB

LQFP-32

50 MHz

12 bit

24 I/O

2 V

5.25 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F412

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB 8-bit MCU

C8051F850-C-GM
Silicon Labs
1: $2.05
1,513In Stock
NRND

Mfr. Part No.
C8051F850-C-GM

Mouser Part No
634-C8051F850-C-GM

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 4 kB 8-bit MCU

Learn More

Datasheet

1,513In Stock

$2.05

$1.72

$1.59

$1.41

$1.33

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

+ 85 C

C8051F850

AEC-Q100

Tube

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

C8051F860-C-GS
Silicon Labs
1: $2.47
400In Stock
NRND

Mfr. Part No.
C8051F860-C-GS

Mouser Part No
634-C8051F860-C-GS

NRND

Silicon Labs

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

Learn More

Datasheet

400In Stock

$2.47

$2.08

$1.83

$1.67

View

Min.: 1
Mult.: 1

8051

8 kB

512 B

SOIC-16

25 MHz

12 bit

13 I/O

2.2 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

C8051F860

AEC-Q100

Tube

8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V

AT89C2051-24PU
Microchip Technology
1: $2.08
1,970In Stock

Mfr. Part No.
AT89C2051-24PU

Mouser Part No
556-A89C2051-24PU

Microchip Technology

8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V

Datasheet

1,970In Stock

$2.08

$1.91

$1.72

Min.: 1
Mult.: 1

8051

2 kB

128 B

PDIP-20

24 MHz

No ADC

15 I/O

4 V

6 V

Through Hole

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V

AT89C4051-24PU
Microchip Technology
1: $2.12
1,412In Stock

Mfr. Part No.
AT89C4051-24PU

Mouser Part No
556-A89C4051-24PU

Microchip Technology

8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V

Datasheet

1,412In Stock

$2.12

$1.94

$1.76

Min.: 1
Mult.: 1

8051

4 kB

128 B

PDIP-20

24 MHz

No ADC

15 I/O

4 V

6 V

Through Hole

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V

AT89C51AC3-SLSUM
Microchip Technology
1: $10.72
437In Stock

Mfr. Part No.
AT89C51AC3-SLSUM

Mouser Part No
556-A89C51AC3SLSUM

Microchip Technology

8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V

Learn More

Datasheet

437In Stock

$10.72

$9.84

$8.91

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 64K FLASH 32KHz 3.5-5V Ind.

AT89C51ID2-SLSUM
Microchip Technology
1: $12.68
594In Stock

Mfr. Part No.
AT89C51ID2-SLSUM

Mouser Part No
556-A89C51ID2SLSUM

Microchip Technology

8-bit Microcontrollers - MCU 64K FLASH 32KHz 3.5-5V Ind.

Learn More

Datasheet

594In Stock

$12.68

$11.61

$10.53

Min.: 1
Mult.: 1

8051

64 kB

1.75 kB

PLCC-44

60 MHz

No ADC

34 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU C51RB2 FLASH 3V 16k Ind

AT89C51RB2-SLSUL
Microchip Technology
1: $8.15
316In Stock

Mfr. Part No.
AT89C51RB2-SLSUL

Mouser Part No
556-A89C51RB2SLSUL

Microchip Technology

8-bit Microcontrollers - MCU C51RB2 FLASH 3V 16k Ind

Learn More

Datasheet

316In Stock

$8.15

$7.49

$6.76

Min.: 1
Mult.: 1

8051

16 kB

1.25 kB

PLCC-44

60 MHz

No ADC

32 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tube

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

AT89LP4052-20PU
Microchip Technology
1: $2.69
667In Stock

Mfr. Part No.
AT89LP4052-20PU

Mouser Part No
556-A89LP4052-20PU

Microchip Technology

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

Datasheet

667In Stock

$2.69

$2.47

Min.: 1
Mult.: 1

8051

4 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 2K FLASH 24MHZ SOIC

AT89S2051-24SU
Microchip Technology
1: $2.61
676In Stock

Mfr. Part No.
AT89S2051-24SU

Mouser Part No
556-A89S2051-24SU

Microchip Technology

8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC

Datasheet

676In Stock

$2.61

$2.40

$2.17

Min.: 1
Mult.: 1

8051

2 kB

256 B

SOIC-20

24 MHz

No ADC

15 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89S

Tube

8051 Core 8-bit Microcontrollers - MCU

Customer Service Office

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