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8051 Core Embedded Processors & Controllers

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Types of Embedded Processors & Controllers

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Results: 542

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Core = 8051

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Part #

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

MS51TC0AE
Nuvoton
1: $1.041
975In Stock

Mfr. Part #
MS51TC0AE

Mouser Part #
503-MS51TC0AE

Nuvoton

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

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Datasheet

975In Stock

$1.041

$891

$782

$739

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-33

8051

30 I/O

8 bit

12 bit

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

MS51XB9AE
Nuvoton
1: $684
648In Stock

Mfr. Part #
MS51XB9AE

Mouser Part #
503-MS51XB9AE

Nuvoton

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

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Datasheet

648In Stock

$684

$588

$518

$490

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

8051

18 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85

N76E003AT20
Nuvoton
1: $873
485In Stock
888Expected 4/20/2027

Mfr. Part #
N76E003AT20

Mouser Part #
503-N76E003AT20

Nuvoton

8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85

Datasheet

485In Stock

888Expected 4/20/2027

$873

$748

$637

$601

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

8051

18 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU C51AC2 32K FLASHADC EEP 5V

AT89C51AC2-SLSUM
Microchip Technology
1: $10.843
20In Stock
81Expected 9/11/2026

Mfr. Part #
AT89C51AC2-SLSUM

Mouser Part #
556-A89C51AC2SLSUM

Microchip Technology

8-bit Microcontrollers - MCU C51AC2 32K FLASHADC EEP 5V

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Datasheet

20In Stock

81Expected 9/11/2026

$10.843

$9.938

$9.002

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

34 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V

AT89LS52-16AU
Microchip Technology
1: $2.408
176In Stock

Mfr. Part #
AT89LS52-16AU

Mouser Part #
556-A89LS52-16AU

Microchip Technology

8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V

Datasheet

176In Stock

$2.408

$2.198

$1.998

Min.: 1
Mult.: 1

SMD/SMT

TQFP-44

8051

32 I/O

8 bit

No ADC

8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL

AT89LP3240-20AU
Microchip Technology
1: $11.032
60In Stock

Mfr. Part #
AT89LP3240-20AU

Mouser Part #
556-AT89LP3240-20AU

Microchip Technology

8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL

Datasheet

60In Stock

$11.032

$10.149

$9.728

Min.: 1
Mult.: 1

SMD/SMT

TQFP-44

8051

38 I/O

8 bit

10 bit

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

AT89LP51ED2-20AU
Microchip Technology
1: $5.932
144In Stock
1.600Expected 12/11/2026

Mfr. Part #
AT89LP51ED2-20AU

Mouser Part #
556-AT89LP51ED2-20AU

Microchip Technology

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

Learn More

Datasheet

144In Stock

1.600Expected 12/11/2026

$5.932

Min.: 1
Mult.: 1

SMD/SMT

TQFP-44

8051

36 I/O

8 bit

10 bit

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

AT89LP51ED2-20MU
Microchip Technology
1: $5.932
30In Stock

Mfr. Part #
AT89LP51ED2-20MU

Mouser Part #
556-AT89LP51ED2-20MU

Microchip Technology

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

Learn More

Datasheet

30In Stock

$5.932

$5.416

$4.922

Min.: 1
Mult.: 1

SMD/SMT

VQFN-44

8051

36 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V

AT89LP51RB2-20AAU
Microchip Technology
1: $4.038
209In Stock

Mfr. Part #
AT89LP51RB2-20AAU

Mouser Part #
556-AT89LP51RB220AAU

Microchip Technology

8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V

Learn More

Datasheet

209In Stock

$4.038

$3.702

$3.355

Min.: 1
Mult.: 1

SMD/SMT

LQFP-44

8051

40 I/O

8 bit

10 bit

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

AT89LP51RD2-20AAU
Microchip Technology
1: $5.490
5In Stock

Mfr. Part #
AT89LP51RD2-20AAU

Mouser Part #
556-AT89LP51RD220AAU

Microchip Technology

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

Learn More

Datasheet

5In Stock

$5.490

$5.374

$4.932

$4.470

Min.: 1
Mult.: 1

SMD/SMT

LQFP-44

8051

40 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU

C8051F338-GM
Silicon Labs
1: $12.631
57In Stock

Mfr. Part #
C8051F338-GM

Mouser Part #
634-C8051F338-GM

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU

Datasheet

57In Stock

$12.631

$10.475

$8.939

$8.592

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-24

8051

21 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM)

C8051F330-GMR
Silicon Labs
1: $12.126
24In Stock
1.500Expected 10/23/2026
NRND

Mfr. Part #
C8051F330-GMR

Mouser Part #
634-C8051F330-GMR

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM)

Datasheet

24In Stock

1.500Expected 10/23/2026

Cut Tape

$12.126

$9.623

$8.834

$7.961

View

Reel

$6.636

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

SMD/SMT

QFN-20

8051

17 I/O

8 bit

10 bit

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

AT89C51RC2-SLSUL
Microchip Technology
1: $10.170
4In Stock

Mfr. Part #
AT89C51RC2-SLSUL

Mouser Part #
556-A89C51RC2SLSUL

Microchip Technology

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

Learn More

Datasheet

4In Stock

$10.170

$9.318

$8.424

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

32 I/O

8 bit

No ADC

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

C8051F353-GMR
Silicon Labs
1: $13.567
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
C8051F353-GMR

Mouser Part #
634-C8051F353-GMR

Silicon Labs

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$13.567

$11.032

$9.697

$9.244

View

Reel

$7.456

Min.: 1.500
Mult.: 1.500

: 1.500

SMD/SMT

QFN-28

8051

17 I/O

8 bit

16 bit

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

C8051F383-GM
Silicon Labs
1: $6.300
21In Stock

Mfr. Part #
C8051F383-GM

Mouser Part #
634-C8051F383-GM

Silicon Labs

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

Learn More

Datasheet

21In Stock

$6.300

$6.026

$4.491

$4.280

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

25 I/O

8 bit

10 bit

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU

C8051F506-IM
Silicon Labs
1: $13.051
6In Stock

Mfr. Part #
C8051F506-IM

Mouser Part #
634-C8051F506-IM

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU

Datasheet

6In Stock

$13.051

$10.612

$10.117

$8.782

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

25 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

CY8C3244AXI-153
Infineon Technologies
1: $11.863
33In Stock

Mfr. Part #
CY8C3244AXI-153

Mouser Part #
727-CY8C3244AXI-153

Infineon Technologies

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

33In Stock

$11.863

$9.234

$8.382

$6.741

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

70 I/O

8 bit

12 bit

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

CY8C3246LTI-149
Infineon Technologies
1: $15.102
8In Stock

Mfr. Part #
CY8C3246LTI-149

Mouser Part #
727-CY8C3246LTI-149

Infineon Technologies

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

Learn More

Datasheet

8In Stock

$15.102

$11.726

$10.580

$9.970

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

46 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O

CY8C3246LTI-149T
Infineon Technologies
1: $15.281
23In Stock

Mfr. Part #
CY8C3246LTI-149T

Mouser Part #
727-CY8C3246LTI-149T

Infineon Technologies

8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O

Learn More

Datasheet

23In Stock

Cut Tape

$15.281

$11.600

$11.127

$9.802

View

Reel

$8.235

Min.: 1
Mult.: 1

: 2.000

SMD/SMT

QFN-68

8051

46 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O

CY8C3446AXI-099T
Infineon Technologies
1: $17.490
113In Stock

Mfr. Part #
CY8C3446AXI-099T

Mouser Part #
727-CY8C3446AXI-099T

Infineon Technologies

8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O

Learn More

Datasheet

113In Stock

Cut Tape

$17.490

$13.714

$12.347

$11.684

View

Reel

$9.539

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

SMD/SMT

TQFP-100

8051

72 I/O

8 bit

12 bit

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

CY8C3446LTI-085
Infineon Technologies
1: $16.985
6In Stock

Mfr. Part #
CY8C3446LTI-085

Mouser Part #
727-CY8C3446LTI-085

Infineon Technologies

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

Learn More

Datasheet

6In Stock

$16.985

$13.293

$11.968

$11.316

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

48 I/O

8 bit

12 bit

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

C8051F022-GQ
Silicon Labs
1: $37.240
7In Stock
End of Life

Mfr. Part #
C8051F022-GQ

Mouser Part #
634-C8051F022-GQ

End of Life

Silicon Labs

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

Datasheet

7In Stock

$37.240

$31.130

$28.869

$28.312

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

64 I/O

8 bit

8 bit, 10 bit

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

C8051F043-GQ
Silicon Labs
1: $27.954
6In Stock
End of Life

Mfr. Part #
C8051F043-GQ

Mouser Part #
634-C8051F043-GQ

End of Life

Silicon Labs

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

Datasheet

6In Stock

$27.954

$22.559

$20.992

$19.456

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

8051

32 I/O

8 bit

10 bit

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

C8051F064-GQ
Silicon Labs
1: $34.779
2In Stock
End of Life

Mfr. Part #
C8051F064-GQ

Mouser Part #
634-C8051F064-GQ

End of Life

Silicon Labs

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

Datasheet

2In Stock

$34.779

$27.943

$25.987

$23.768

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

59 I/O

8 bit

16 bit

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

C8051F120-GQ
Silicon Labs
1: $56.676
5In Stock
2.250Expected 9/25/2026
End of Life

Mfr. Part #
C8051F120-GQ

Mouser Part #
634-C8051F120-GQ

End of Life

Silicon Labs

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

Datasheet

5In Stock

2.250Expected 9/25/2026

$56.676

$44.013

$40.711

$40.027

Quote

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

64 I/O

8 bit

8 bit, 12 bit

8051 Core Embedded Processors & Controllers

Types of Embedded Processors & Controllers

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LQFP-32
LQFP-44
LQFP-48
LQFP-64
MQFP-80
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

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