.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: 637

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 8051 25 MHz 8 kB LFO 8-bit MCU

C8051F330-GM
Silicon Labs
1: ¥1,802.2
1,911Expected 10/16/2026
NRND

Mfr. Part #
C8051F330-GM

Mouser Part #
634-C8051F330-GM

NRND

Silicon Labs

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

Datasheet

1,911Expected 10/16/2026

¥1,802.2

¥1,494.9

¥1,274

¥1,222.5

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

8051

8 bit

25 MHz

8 kB

768 B

10 bit

17 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-2MHZ 4V-5.5V

AT89C2051-12SU
Microchip Technology
1: ¥250.8
110Expected 9/9/2026

Mfr. Part #
AT89C2051-12SU

Mouser Part #
556-A89C205112SU

Microchip Technology

8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-2MHZ 4V-5.5V

Datasheet

110Expected 9/9/2026

¥250.8

¥230.9

¥207.6

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-20

8051

8 bit

12 MHz

2 kB

128 B

No ADC

15 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 12MHZ 4V-5.5V

AT89C4051-12SU
Microchip Technology
1: ¥249.2
552On Order

Mfr. Part #
AT89C4051-12SU

Mouser Part #
556-A89C405112SU

Microchip Technology

8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 12MHZ 4V-5.5V

Datasheet

552On Order

¥249.2

¥229.2

¥206

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-20

8051

8 bit

12 MHz

4 kB

128 B

No ADC

15 I/O

- 40 C

+ 85 C

Tube

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

AT89LP51ED2-20PU
Microchip Technology
1: ¥980
140On Order

Mfr. Part #
AT89LP51ED2-20PU

Mouser Part #
556-AT89LP51ED2-20PU

Microchip Technology

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

Learn More

Datasheet

140On Order

¥980

¥896.9

¥812.2

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

Through Hole

PDIP-40

8051

8 bit

20 MHz

64 kB

256 B

10 bit

40 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU

AT89LP52-20JU
Microchip Technology
1: ¥573
130Expected 9/14/2026

Mfr. Part #
AT89LP52-20JU

Mouser Part #
556-AT89LP52-20JU

Microchip Technology

8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU

Learn More

Datasheet

130Expected 9/14/2026

¥573

¥524.9

¥504.9

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

20 MHz

8 kB

256 B

No ADC

36 I/O

- 40 C

+ 85 C

Tube

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

C8051F040-GQ
Silicon Labs
1: ¥5,323.5
425Expected 10/30/2026
End of Life

Mfr. Part #
C8051F040-GQ

Mouser Part #
634-C8051F040-GQ

End of Life

Silicon Labs

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

Datasheet

425Expected 10/30/2026

¥5,323.5

¥4,444.8

¥3,920

¥3,767.1

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

25 MHz

64 kB

4.25 kB

8 bit, 12 bit

64 I/O

- 40 C

+ 85 C

Tray

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

C8051F042-GQR
Silicon Labs
1: ¥4,778.7
246Expected 9/8/2026
End of Life

Mfr. Part #
C8051F042-GQR

Mouser Part #
634-C8051F042-GQR

End of Life

Silicon Labs

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

Datasheet

246Expected 9/8/2026

Cut Tape

¥4,778.7

¥3,981.4

¥3,910

¥3,788.7

Reel

¥3,217.4

Min.: 1
Mult.: 1

: 250

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit

64 I/O

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)

C8051F331-GMR
Silicon Labs
1: ¥1,762.3
1,500Expected 10/16/2026
End of Life

Mfr. Part #
C8051F331-GMR

Mouser Part #
634-C8051F331-GMR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)

Datasheet

1,500Expected 10/16/2026

Cut Tape

¥1,762.3

¥1,362

¥1,298.9

¥1,127.8

View

Reel

¥1,029.8

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

8051

8 bit

25 MHz

8 kB

768 B

No ADC

17 I/O

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU

C8051F531-C-IT
Silicon Labs
1: ¥1,272.3
1,551Expected 1/1/2027
End of Life

Mfr. Part #
C8051F531-C-IT

Mouser Part #
634-C8051F531-C-IT

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU

Datasheet

1,551Expected 1/1/2027

¥1,272.3

¥1,048.1

¥906.9

¥867

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

8051

8 bit

25 MHz

8 kB

256 B

12 bit

16 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

C8051F580-IM
Silicon Labs
1: ¥2,815.4
810Expected 1/29/2027
End of Life

Mfr. Part #
C8051F580-IM

Mouser Part #
634-C8051F580-IM

End of Life

Silicon Labs

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

Learn More

Datasheet

810Expected 1/29/2027

¥2,815.4

¥2,431.7

¥2,117.8

¥2,013.1

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

24 MHz

128 kB

8.25 kB

12 bit

40 I/O

- 40 C

+ 125 C

AEC-Q100

Tube

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

ML51PB9AE
Nuvoton
1: ¥405.3
499Expected 3/24/2027

Mfr. Part #
ML51PB9AE

Mouser Part #
503-ML51PB9AE

Nuvoton

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

Learn More

Datasheet

499Expected 3/24/2027

¥405.3

¥260.8

¥232.5

¥192.7

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

LQFP-32

8051

8 bit

24 MHz

16 kB

2 kB

12 bit

28 I/O

- 40 C

+ 105 C

Tray

8-bit Microcontrollers - MCU 32KB Flash ROM, 2KB SRAM, 2 CHs of SPI,1T/8051

ML51TC0AE
Nuvoton
1: ¥264.1
490Expected 3/26/2027

Mfr. Part #
ML51TC0AE

Mouser Part #
503-ML51TC0AE

Nuvoton

8-bit Microcontrollers - MCU 32KB Flash ROM, 2KB SRAM, 2 CHs of SPI,1T/8051

Learn More

Datasheet

490Expected 3/26/2027

¥264.1

¥224.2

¥196

¥186

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-33

8051

8 bit

24 MHz

32 kB

2 kB

12 bit

28 I/O

- 40 C

+ 105 C

Tray

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

AT89C51RB2-3CSUM
Microchip Technology
1: ¥1,245.8
Lead-Time 9 Weeks

Mfr. Part #
AT89C51RB2-3CSUM

Mouser Part #
556-A89C51RB2-3CSUM

Microchip Technology

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

Learn More

Datasheet

Lead-Time 9 Weeks

¥1,245.8

¥1,142.8

¥1,034.8

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

Through Hole

PDIP-40

8051

8 bit

60 MHz

16 kB

1.25 kB

No ADC

32 I/O

- 40 C

+ 85 C

Tube

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

AT89C51AC3-RDTUM
Microchip Technology
1: ¥1,695.9
Lead-Time 8 Weeks

Mfr. Part #
AT89C51AC3-RDTUM

Mouser Part #
556-A89C51AC3RDTUM

Microchip Technology

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

Learn More

Datasheet

Lead-Time 8 Weeks

¥1,695.9

¥1,558

¥1,406.9

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

VQFP-64

8051

8 bit

60 MHz

64 kB

2 kB

10 bit

36 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU LPC/CAN/C51 BootUA IND

AT89C51CC02UA-RATUM
Microchip Technology
250: ¥1,131.1
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
AT89C51CC02UA-RATUM

Mouser Part #
556-A89C51C02UARATUM

Microchip Technology

8-bit Microcontrollers - MCU LPC/CAN/C51 BootUA IND

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

¥1,131.1

Min.: 250
Mult.: 250

8-bit Microcontrollers - MCU

SMD/SMT

VQFP-32

8051

8 bit

40 MHz

16 kB

512 B

20 I/O

- 40 C

+ 85 C

Tray

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

AT89C51CC03CA-RDTUM
Microchip Technology
1: ¥1,832.1
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89C51CC03CA-RDTUM

Mouser Part #
556-A89C51C03CARDTUM

Microchip Technology

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

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

¥1,832.1

¥1,682.6

¥1,523.1

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

VQFP-64

8051

8 bit

60 MHz

64 kB

2 kB

10 bit

36 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind

AT89C51ED2-RDRUM
Microchip Technology
1,500: ¥1,629.4
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89C51ED2-RDRUM

Mouser Part #
556-A89C51ED2RDRUM

Microchip Technology

8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Reel

¥1,629.4

View

Min.: 1,500
Mult.: 1,500

: 1,500

8-bit Microcontrollers - MCU

SMD/SMT

LQFP-64

8051

8 bit

60 MHz

64 kB

2 kB

No ADC

32 I/O

Reel

8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V

AT89C51ED2-RDTUM
Microchip Technology
160: ¥1,438.4
Non-Stocked Lead-Time 8 Weeks

Mfr. Part #
AT89C51ED2-RDTUM

Mouser Part #
556-A89C51ED2RDTUM

Microchip Technology

8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 8 Weeks

¥1,438.4

Min.: 160
Mult.: 160

8-bit Microcontrollers - MCU

SMD/SMT

VQFP-64

8051

8 bit

60 MHz

64 kB

2 kB

No ADC

50 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind

AT89C51ED2-SLRUM
Microchip Technology
500: ¥1,627.8
Non-Stocked Lead-Time 8 Weeks

Mfr. Part #
AT89C51ED2-SLRUM

Mouser Part #
556-A89C51ED2SLRUM

Microchip Technology

8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind

Learn More

Datasheet

Non-Stocked Lead-Time 8 Weeks

Reel

¥1,627.8

¥1,619.5

Quote

Min.: 500
Mult.: 500

: 500

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

64 kB

2 kB

No ADC

32 I/O

Reel

8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 3V

AT89C51IC2-SLRUL
Microchip Technology
500: ¥1,423.5
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89C51IC2-SLRUL

Mouser Part #
556-A89C51IC2SLRUL

Microchip Technology

8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 3V

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Reel

¥1,423.5

¥1,415.2

Quote

Min.: 500
Mult.: 500

: 500

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

32 kB

1.25 kB

No ADC

34 I/O

Reel

8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V

AT89C51IC2-SLRUM
Microchip Technology
500: ¥1,395.2
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89C51IC2-SLRUM

Mouser Part #
556-A89C51IC2SLRUM

Microchip Technology

8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Reel

¥1,395.2

¥1,388.6

Quote

Min.: 500
Mult.: 500

: 500

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

32 kB

1.25 kB

No ADC

34 I/O

Reel

8-bit Microcontrollers - MCU C51ID2 64K FLASH TWI 32KHz 5V

AT89C51ID2-SLRUM
Microchip Technology
500: ¥1,773.9
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89C51ID2-SLRUM

Mouser Part #
556-A89C51ID2SLRUM

Microchip Technology

8-bit Microcontrollers - MCU C51ID2 64K FLASH TWI 32KHz 5V

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Reel

¥1,773.9

Min.: 500
Mult.: 500

: 500

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

64 kB

2 kB

No ADC

32 I/O

Reel

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

AT89C51RB2-SLRUL
Microchip Technology
1: ¥1,617.8
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89C51RB2-SLRUL

Mouser Part #
556-A89C51RB2SLRUL

Microchip Technology

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

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Cut Tape

¥1,617.8

¥1,353.7

Reel

¥1,327.1

Min.: 1
Mult.: 1

: 500

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

16 kB

1.25 kB

No ADC

32 I/O

Reel, Cut Tape

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

AT89C51RB2-SLRUM
Microchip Technology
500: ¥1,353.7
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89C51RB2-SLRUM

Mouser Part #
556-A89C51RB2SLRUM

Microchip Technology

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

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Reel

¥1,353.7

Min.: 500
Mult.: 500

: 500

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

16 kB

1.25 kB

No ADC

32 I/O

Reel

8-bit Microcontrollers - MCU C51RC2 32K FLASH 3V Ind

AT89C51RC2-SLRUL
Microchip Technology
500: ¥1,569.6
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
AT89C51RC2-SLRUL

Mouser Part #
556-A89C51RC2SLRUL

Microchip Technology

8-bit Microcontrollers - MCU C51RC2 32K FLASH 3V Ind

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Reel

¥1,569.6

Min.: 500
Mult.: 500

: 500

8-bit Microcontrollers - MCU

SMD/SMT

PLCC-44

8051

8 bit

60 MHz

32 kB

1.25 kB

No ADC

32 I/O

Reel

BGA-82
LGA-42
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

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