.hide-partial { max-height: none; } .show-more { display: none; }

8051 Core Embedded Processors & Controllers

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Embedded Processors & Controllers

List Images

Results: 604

Applied Filters:

Core = 8051

Manufacturer

Product Type

Mounting Style

Package/Case

Data Bus Width

Maximum Clock Frequency

Program Memory Size

Data RAM Size

ADC Resolution

Number of I/Os

Minimum Operating Temperature

Maximum Operating Temperature

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

CY8C3245LTI-139
Infineon Technologies
1: Rp176.855
449In 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

449In Stock

Rp176.855

Rp137.595

Rp121.817

Rp116.864

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

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

CY8C3245LTI-163
Infineon Technologies
1: Rp178.874
633In Stock

Mfr. Part No.
CY8C3245LTI-163

Mouser Part No
727-CY8C3245LTI-163

Infineon Technologies

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

Learn More

Datasheet

633In Stock

Rp178.874

Rp139.246

Rp123.285

Rp118.332

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

46 I/O

- 40 C

+ 85 C

Tray

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

CY8C3246PVI-147
Infineon Technologies
1: Rp219.969
371In Stock

Mfr. Part No.
CY8C3246PVI-147

Mouser Part No
727-CY8C3246PVI-147

Infineon Technologies

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

Learn More

Datasheet

371In Stock

Rp219.969

Rp207.310

Rp151.538

Rp145.851

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SSOP-48

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

31 I/O

- 40 C

+ 85 C

Tube

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

CY8C3666LTI-027
Infineon Technologies
1: Rp413.886
147In Stock

Mfr. Part No.
CY8C3666LTI-027

Mouser Part No
727-CY8C3666LTI-027

Infineon Technologies

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

Learn More

Datasheet

147In Stock

Rp413.886

Rp330.778

Rp297.572

Rp296.288

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

28 I/O

+ 85 C

Tray

8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz

CY8C3666LTI-203
Infineon Technologies
1: Rp308.580
1.122In Stock

Mfr. Part No.
CY8C3666LTI-203

Mouser Part No
727-CY8C3666LTI-203

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz

Learn More

Datasheet

1.122In Stock

Rp308.580

Rp244.369

Rp218.684

Rp210.796

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

46 I/O

- 40 C

+ 85 C

Tray

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

CY8C3866AXI-040
Infineon Technologies
1: Rp505.983
297In 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

297In Stock

Rp505.983

Rp395.907

Rp378.111

Rp338.117

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

72 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB

CY8C3866AXI-040T
Infineon Technologies
1: Rp493.691
559In Stock

Mfr. Part No.
CY8C3866AXI-040T

Mouser Part No
727-CY8C3866AXI-040T

Infineon Technologies

8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB

Learn More

Datasheet

559In Stock

Cut Tape

Rp493.691

Rp396.274

Rp357.930

Rp341.603

View

Reel

Rp311.332

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

72 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

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

CY8C3866PVI-070
Infineon Technologies
1: Rp405.814
237In 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

237In Stock

Rp405.814

Rp372.974

Rp288.583

Rp279.043

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SSOP-48

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

29 I/O

- 40 C

+ 85 C

Tube

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

C8051F061-GQ
Silicon Labs
1: Rp735.124
3.579In Stock
End of Life

Mfr. Part No.
C8051F061-GQ

Mouser Part No
634-C8051F061-GQ

End of Life

Silicon Labs

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

Datasheet

3.579In Stock

Rp735.124

Rp615.508

Rp572.946

Rp527.814

Quote

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-64

8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit, 2 x 16 bit

24 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU

C8051F120-GQR
Silicon Labs
1: Rp934.362
471In Stock
End of Life

Mfr. Part No.
C8051F120-GQR

Mouser Part No
634-C8051F120-GQR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU

Datasheet

471In Stock

Cut Tape

Rp934.362

Rp772.734

Rp740.261

Rp701.001

Reel

Rp651.466

Quote

Min.: 1
Mult.: 1

: 250

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

100 MHz

128 kB

8.25 kB

8 bit, 12 bit

64 I/O

- 40 C

+ 85 C

Reel, Cut Tape

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

C8051F121-GQ
Silicon Labs
1: Rp917.300
1.248In Stock
End of Life

Mfr. Part No.
C8051F121-GQ

Mouser Part No
634-C8051F121-GQ

End of Life

Silicon Labs

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

Datasheet

1.248In Stock

Rp917.300

Rp764.294

Rp715.127

Rp678.435

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-64

8051

8 bit

100 MHz

128 kB

8.25 kB

8 bit, 12 bit

32 I/O

- 40 C

+ 85 C

Tray

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

C8051F501-IM
Silicon Labs
1: Rp237.397
600In Stock
End of Life

Mfr. Part No.
C8051F501-IM

Mouser Part No
634-C8051F501-IM

End of Life

Silicon Labs

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

Datasheet

600In Stock

Rp237.397

Rp195.385

Rp176.855

Rp164.564

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

AEC-Q100

Tube

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

C8051F582-IM
Silicon Labs
1: Rp293.353
5.023In Stock
End of Life

Mfr. Part No.
C8051F582-IM

Mouser Part No
634-C8051F582-IM

End of Life

Silicon Labs

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

Datasheet

5.023In Stock

Rp293.353

Rp243.451

Rp212.080

Rp206.026

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-32

8051

8 bit

50 MHz

128 kB

8.25 kB

12 bit

25 I/O

- 40 C

+ 125 C

AEC-Q100

Tube

8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm)

IS32CS8974A-QWLCA3-TR
Lumissil
1: Rp23.666
2.450In Stock
New Product

Mfr. Part No.
IS32CS8974A-QWLCA3-TR

Mouser Part No
870-32CS8974AQWLA3TR

New Product

Lumissil

8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm)

Learn More

Datasheet

2.450In Stock

Cut Tape

Rp23.666

Rp20.181

Rp17.612

Rp16.640

Reel

Rp13.117

View

Min.: 1
Mult.: 1

: 2.500

8-bit Microcontrollers - MCU

SMD/SMT

WQFN-24

8051

8 bit

25 MHz

32 KB

2 KB

20 I/O

- 40 C

+ 125 C

Reel, Cut Tape

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

C8051F860-C-GS
Silicon Labs
1: Rp54.671
375In 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

375In Stock

Rp54.671

Rp47.883

Rp38.343

Rp36.142

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

8051

8 bit

25 MHz

8 kB

512 B

12 bit

13 I/O

- 40 C

+ 85 C

AEC-Q100

Tube

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

AT89C2051-24PU
Microchip Technology
1: Rp38.160
1.413In 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

1.413In Stock

Rp38.160

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

Through Hole

PDIP-20

8051

8 bit

24 MHz

2 kB

128 B

No ADC

15 I/O

- 40 C

+ 85 C

Tube

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

AT89C2051-12PU
Microchip Technology
1: Rp38.160
951In 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

951In Stock

Rp38.160

Rp31.555

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

Through Hole

PDIP-20

8051

8 bit

12 MHz

2 kB

128 B

No ADC

15 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND

AT89C51CC01UA-SLSUM
Microchip Technology
1: Rp175.571
1.539In Stock

Mfr. Part No.
AT89C51CC01UA-SLSUM

Mouser Part No
556-A89C51C01UASLSUM

Microchip Technology

8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND

Learn More

Datasheet

1.539In Stock

Rp175.571

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

40 MHz

32 kB

1.2 kB

10 bit

34 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 4K ISP FLASH 2.7 TO 5.5V - 24MHz

AT89S51-24AU
Microchip Technology
1: Rp38.527
4.294In Stock

Mfr. Part No.
AT89S51-24AU

Mouser Part No
556-A89S51-24AU

Microchip Technology

8-bit Microcontrollers - MCU 4K ISP FLASH 2.7 TO 5.5V - 24MHz

Datasheet

4.294In Stock

Rp38.527

Rp35.408

Rp32.106

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-44

8051

8 bit

24 MHz

4 kB

128 B

No ADC

32 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 4.0V-5.5V

AT89S52-24AU
Microchip Technology
1: Rp41.645
2.648In Stock

Mfr. Part No.
AT89S52-24AU

Mouser Part No
556-A89S52-24AU

Microchip Technology

8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 4.0V-5.5V

Datasheet

2.648In Stock

Rp41.645

Rp34.674

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-44

8051

8 bit

24 MHz

8 kB

256 B

No ADC

32 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU C51AC2 32kF ADC EEP TQFP44 ind 5V GREEN

AT89C51AC2T-RLTUM
Microchip Technology
1: Rp179.974
332In Stock
2.720Expected 04/09/2026

Mfr. Part No.
AT89C51AC2T-RLTUM

Mouser Part No
556-AT89C51AC2TLTUM

Microchip Technology

8-bit Microcontrollers - MCU C51AC2 32kF ADC EEP TQFP44 ind 5V GREEN

Learn More

Datasheet

332In Stock

2.720Expected 04/09/2026

Rp179.974

Rp179.424

Rp179.240

Rp149.520

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-44

8051

8 bit

40 MHz

32 kB

128 B

10 bit

34 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU CAN TQFP44 TRAY I. Bootloader CAN GREEN

AT89C51CC01CAT-RLTUM
Microchip Technology
1: Rp166.398
922In Stock

Mfr. Part No.
AT89C51CC01CAT-RLTUM

Mouser Part No
556-AT89C51CC01CATUM

Microchip Technology

8-bit Microcontrollers - MCU CAN TQFP44 TRAY I. Bootloader CAN GREEN

Learn More

Datasheet

922In Stock

Rp166.398

Rp152.455

Rp138.145

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-44

8051

8 bit

40 MHz

32 kB

1.25 kB

10 bit

34 I/O

- 40 C

+ 85 C

Tray

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

AT89LP51ED2-20AAU
Microchip Technology
1: Rp103.471
676In Stock

Mfr. Part No.
AT89LP51ED2-20AAU

Mouser Part No
556-AT89LP51ED220AAU

Microchip Technology

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

Learn More

Datasheet

676In Stock

Rp103.471

Rp94.482

Rp85.859

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

LQFP-44

8051

8 bit

20 MHz

64 kB

256 B

10 bit

36 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V

AT89LP51RC2-20AU
Microchip Technology
1: Rp78.154
593In Stock

Mfr. Part No.
AT89LP51RC2-20AU

Mouser Part No
556-AT89LP51RC2-20AU

Microchip Technology

8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V

Learn More

Datasheet

593In Stock

Rp78.154

Rp71.733

Rp64.761

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-44

8051

8 bit

20 MHz

32 kB

256 B

10 bit

40 I/O

- 40 C

+ 85 C

Tray

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

AT89LP51RD2-20AU
Microchip Technology
1: Rp95.766
972In Stock

Mfr. Part No.
AT89LP51RD2-20AU

Mouser Part No
556-AT89LP51RD2-20AU

Microchip Technology

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

Learn More

Datasheet

972In Stock

Rp95.766

Rp90.079

Rp89.895

Rp77.971

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-44

8051

8 bit

20 MHz

64 kB

256 B

10 bit

40 I/O

- 40 C

+ 85 C

Tray

8051 Core Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

BGA-82
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

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
4 kB
4.25 kB
4.35 kB
4352 B
6 kB

4 I/O
5 I/O
6 I/O
7 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
23 I/O
24 I/O
25 I/O
26 I/O