8-bit Microcontrollers - MCU – Mouser Korea, Republic of

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AT89C51 8-Bit MCUs

Microchip Technology AT89C51 8-Bit MCUs offer low-power and high-performance with up to 32KB of flash programmable ROM and 512 bytes of RAM. The MCUs use Microchip high-density nonvolatile memory technology. The devices are compatible with the industry-standard 80C51 and 80C52 instruction set and pinout. On-chip flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer. This versatile 8-bit CPU with flash provides a flexible and cost-effective solution for many embedded control applications.

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Part #

8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 UARBOOT GREEN

AT89C51CC03UAT-RLTUM
Microchip Technology
1: ₩15,771.6
2,264In Stock

Mfr. Part #
AT89C51CC03UAT-RLTUM

Mouser Part #
556-AT89C51CC03UATUM

Microchip Technology

8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 UARBOOT GREEN

Learn More

Datasheet

2,264In Stock

₩15,771.6

₩15,756

₩15,069.6

₩14,289.6

₩14,211.6

Min.: 1
Mult.: 1

8051

64 kB

2 kB

TQFP-44

60 MHz

10 bit

36 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Ind 5V GREEN

AT89C51RC2T-RLTUL
Microchip Technology
1: ₩14,336.4
2,803In Stock

Mfr. Part #
AT89C51RC2T-RLTUL

Mouser Part #
556-AT89C51RC2TLTUL

Microchip Technology

8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Ind 5V GREEN

Learn More

Datasheet

2,803In Stock

₩14,336.4

₩13,150.8

₩11,918.4

₩11,902.8

Min.: 1
Mult.: 1

8051

32 kB

1.25 kB

TQFP-44

60 MHz

No ADC

32 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 CANBOOT GREEN

AT89C51CC03CAT-RLTUM
Microchip Technology
1: ₩17,206.8
1,700In Stock

Mfr. Part #
AT89C51CC03CAT-RLTUM

Mouser Part #
556-AT89C51CC03CATUM

Microchip Technology

8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 CANBOOT GREEN

Learn More

Datasheet

1,700In Stock

₩17,206.8

₩15,771.6

₩14,289.6

Min.: 1
Mult.: 1

8051

64 kB

2 kB

TQFP-44

60 MHz

10 bit

36 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

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

AT89C51RB2-SLSUL
Microchip Technology
1: ₩12,714
286In Stock

Mfr. Part #
AT89C51RB2-SLSUL

Mouser Part #
556-A89C51RB2SLSUL

Microchip Technology

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

Learn More

Datasheet

286In Stock

₩12,714

₩11,746.8

₩11,731.2

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 C51IC2 32K FLASH I2C 32KHz 3V

AT89C51IC2-SLSUL
Microchip Technology
1: ₩14,055.6
460In Stock

Mfr. Part #
AT89C51IC2-SLSUL

Mouser Part #
556-A89C51IC2SLSUL

Microchip Technology

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

Learn More

Datasheet

460In Stock

₩14,055.6

₩12,901.2

₩11,684.4

₩11,668.8

Min.: 1
Mult.: 1

8051

32 kB

1.25 kB

PLCC-44

60 MHz

No ADC

34 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU 16K Flash ADC

AT89C5115-TISUM
Microchip Technology
1: ₩14,352
1,019In Stock

Mfr. Part #
AT89C5115-TISUM

Mouser Part #
556-A89C5115TISUM

Microchip Technology

8-bit Microcontrollers - MCU 16K Flash ADC

Learn More

Datasheet

1,019In Stock

₩14,352

₩14,055.6

₩13,603.2

View

Min.: 1
Mult.: 1

8051

16 kB

512 B

SOIC-28

40 MHz

10 bit

20 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tube

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

AT89C51IC2-SLSUM
Microchip Technology
1: ₩13,743.6
677In Stock

Mfr. Part #
AT89C51IC2-SLSUM

Mouser Part #
556-A89C51IC2SLSUM

Microchip Technology

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

Learn More

Datasheet

677In Stock

₩13,743.6

₩12,604.8

₩11,388

Min.: 1
Mult.: 1

8051

32 kB

1.25 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 32K FLASH 4.0 TO 5.5V

AT89C51RC-24AU
Microchip Technology
1: ₩4,914
3,742In Stock

Mfr. Part #
AT89C51RC-24AU

Mouser Part #
556-A89C51RC-24AU

Microchip Technology

8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V

Learn More

Datasheet

3,742In Stock

₩4,914

₩4,508.4

₩4,352.4

₩4,336.8

Min.: 1
Mult.: 1

8051

32 kB

512 B

TQFP-44

24 MHz

No ADC

32 I/O

4 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tray

8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 COM 5V GREEN

AT89C51RB2T-RLTUM
Microchip Technology
1: ₩10,842
330In Stock

Mfr. Part #
AT89C51RB2T-RLTUM

Mouser Part #
556-AT89C51RB2TLTUM

Microchip Technology

8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 COM 5V GREEN

Learn More

Datasheet

330In Stock

₩10,842

₩10,810.8

₩10,140

₩9,266.4

₩9,250.8

Min.: 1
Mult.: 1

8051

16 kB

1.25 kB

TQFP-44

60 MHz

No ADC

32 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V

AT89C5130A-PUTUM
Microchip Technology
1: ₩12,979.2
501In Stock

Mfr. Part #
AT89C5130A-PUTUM

Mouser Part #
556-A89C5130A-PUTUM

Microchip Technology

8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V

Learn More

Datasheet

501In Stock

₩12,979.2

₩11,934

₩11,497.2

₩11,481.6

View

Min.: 1
Mult.: 1

8051

16 kB

1 kB

QFN-32

48 MHz

No ADC

34 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tray

8-bit Microcontrollers - MCU C51 16K Flash ADC

AT89C5115-SISUM
Microchip Technology
1: ₩15,085.2
896In Stock

Mfr. Part #
AT89C5115-SISUM

Mouser Part #
556-A89C5115SISUM

Microchip Technology

8-bit Microcontrollers - MCU C51 16K Flash ADC

Learn More

Datasheet

896In Stock

₩15,085.2

₩12,511.2

₩12,495.6

Quote

Min.: 1
Mult.: 1

8051

16 kB

512 B

PLCC-28

40 MHz

10 bit

20 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: ₩19,765.2
451In Stock

Mfr. Part #
AT89C51ID2-SLSUM

Mouser Part #
556-A89C51ID2SLSUM

Microchip Technology

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

Learn More

Datasheet

451In Stock

₩19,765.2

₩18,111.6

₩16,411.2

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 C51RD2 ROMless TQFP44 Ind 5V GREEN

AT80C51RD2T-RLTUM
Microchip Technology
1: ₩6,208.8
1,929In Stock

Mfr. Part #
AT80C51RD2T-RLTUM

Mouser Part #
556-AT80C51RD2TLTUM

Microchip Technology

8-bit Microcontrollers - MCU C51RD2 ROMless TQFP44 Ind 5V GREEN

Learn More

Datasheet

1,929In Stock

₩6,208.8

₩5,694

₩5,163.6

₩5,148

Min.: 1
Mult.: 1

8051

1.25 kB

TQFP-44

40 MHz

No ADC

32 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN

AT89C51RB2T-RLTUL
Microchip Technology
1: ₩12,121.2
631In Stock

Mfr. Part #
AT89C51RB2T-RLTUL

Mouser Part #
556-AT89C51RB2TLTUL

Microchip Technology

8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN

Learn More

Datasheet

631In Stock

₩12,121.2

₩11,122.8

₩10,374

₩10,327.2

View

Min.: 1
Mult.: 1

8051

16 kB

1.25 kB

TQFP-44

60 MHz

No ADC

32 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU C51IC2 32Kf I2C 32KHz TQFP44 I. 3V GREEN

AT89C51IC2T-RLTUL
Microchip Technology
1: ₩13,384.8
160In Stock

Mfr. Part #
AT89C51IC2T-RLTUL

Mouser Part #
556-AT89C51IC2TLTUL

Microchip Technology

8-bit Microcontrollers - MCU C51IC2 32Kf I2C 32KHz TQFP44 I. 3V GREEN

Learn More

Datasheet

160In Stock

₩13,384.8

₩12,261.6

₩11,138.4

₩11,122.8

₩11,107.2

Min.: 1
Mult.: 1

8051

32 kB

1.25 kB

TQFP-44

60 MHz

No ADC

34 I/O

2.7 V

3.6 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

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

AT89C51CC03UA-SLSUM
Microchip Technology
1: ₩18,064.8
134In Stock

Mfr. Part #
AT89C51CC03UA-SLSUM

Mouser Part #
556-A89C51C03UASLSUM

Microchip Technology

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

Learn More

Datasheet

134In Stock

₩18,064.8

₩16,598.4

₩15,007.2

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 C51 16K Flash ADC

AT89C5115-RATUM
Microchip Technology
1: ₩13,384.8
95In Stock

Mfr. Part #
AT89C5115-RATUM

Mouser Part #
556-A89C5115RATUM

Microchip Technology

8-bit Microcontrollers - MCU C51 16K Flash ADC

Learn More

Datasheet

95In Stock

₩13,384.8

₩13,275.6

₩12,589.2

₩12,573.6

₩12,480

Min.: 1
Mult.: 1

8051

16 kB

512 B

VQFP-32

40 MHz

10 bit

20 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tray

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

AT89C51CC03CA-SLRUM
Microchip Technology
1: ₩18,064.8
756In Stock

Mfr. Part #
AT89C51CC03CA-SLRUM

Mouser Part #
556-A89C51C03CASLRUM

Microchip Technology

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

Learn More

Datasheet

756In Stock

Cut Tape

₩18,064.8

₩16,707.6

₩16,614

₩16,567.2

Reel

₩14,944.8

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 500

8051

64 kB

2.25 kB

PLCC-44

40 MHz

36 I/O

3 V

5.5 V

SMD/SMT

8 bit

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU Bootloader CAN

AT89C51CC01CA-SLSUM
Microchip Technology
1: ₩14,929.2
105In Stock

Mfr. Part #
AT89C51CC01CA-SLSUM

Mouser Part #
556-A89C51C01CASLSUM

Microchip Technology

8-bit Microcontrollers - MCU Bootloader CAN

Learn More

Datasheet

105In Stock

₩14,929.2

₩13,650

₩12,386.4

₩12,370.8

Min.: 1
Mult.: 1

8051

32 kB

1.2 kB

PLCC-44

40 MHz

10 bit

34 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tube

8-bit Microcontrollers - MCU C51ID2 64kF 32KHz TQFP44 3-5.5V I. GREEN

AT89C51ID2T-RLTUM
Microchip Technology
1: ₩18,844.8
1,910In Stock

Mfr. Part #
AT89C51ID2T-RLTUM

Mouser Part #
556-AT89C51ID2TLTUM

Microchip Technology

8-bit Microcontrollers - MCU C51ID2 64kF 32KHz TQFP44 3-5.5V I. GREEN

Learn More

Datasheet

1,910In Stock

₩18,844.8

₩17,269.2

₩15,678

₩15,662.4

Min.: 1
Mult.: 1

8051

64 kB

2 kB

TQFP-44

60 MHz

No ADC

34 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU MCUs AT89x, 64KB Flash, TQFP-44

AT89C51RD2T-RLRUM
Microchip Technology
1: ₩13,384.8
2,059In Stock

Mfr. Part #
AT89C51RD2T-RLRUM

Mouser Part #
556-AT89C51RD2TLRUM

Microchip Technology

8-bit Microcontrollers - MCU MCUs AT89x, 64KB Flash, TQFP-44

Learn More

Datasheet

2,059In Stock

Cut Tape

₩13,384.8

₩13,041.6

₩11,824.8

₩11,793.6

View

Reel

₩11,466

Min.: 1
Mult.: 1

: 2,000

8051

64 kB

2 kB

TQFP-44

60 MHz

34 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

Reel, Cut Tape

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

AT89C51AC3-SLSUM
Microchip Technology
1: ₩16,723.2
267In Stock

Mfr. Part #
AT89C51AC3-SLSUM

Mouser Part #
556-A89C51AC3SLSUM

Microchip Technology

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

Learn More

Datasheet

267In Stock

₩16,723.2

₩15,350.4

₩13,884

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 CAN/C51 Boot CAN

AT89C51CC02CA-RATUM
Microchip Technology
1: ₩12,745.2
500In Stock

Mfr. Part #
AT89C51CC02CA-RATUM

Mouser Part #
556-A89C51C02CARATUM

Microchip Technology

8-bit Microcontrollers - MCU CAN/C51 Boot CAN

Learn More

Datasheet

500In Stock

₩12,745.2

₩11,700

₩10,623.6

Min.: 1
Mult.: 1

8051

16 kB

512 B

VQFP-32

40 MHz

10 bit

20 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tray

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

AT89C51CC03UA-RDTUM
Microchip Technology
1: ₩16,707.6
421In Stock

Mfr. Part #
AT89C51CC03UA-RDTUM

Mouser Part #
556-A89C51C03UARDTUM

Microchip Technology

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

Learn More

Datasheet

421In Stock

₩16,707.6

₩15,319.2

₩13,852.8

Min.: 1
Mult.: 1

8051

64 kB

2 kB

VQFP-64

60 MHz

10 bit

36 I/O

3 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tray

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

AT89C51ED2-SMSUM
Microchip Technology
1: ₩17,097.6
258In Stock
622Expected 9/8/2026

Mfr. Part #
AT89C51ED2-SMSUM

Mouser Part #
556-A89C51ED2SMSUM

Microchip Technology

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

Learn More

Datasheet

258In Stock

622Expected 9/8/2026

₩17,097.6

Min.: 1
Mult.: 1

8051

64 kB

2 kB

PLCC-68

60 MHz

No ADC

48 I/O

2.7 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

89C

Tube

AT89C51 8-Bit MCUs

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