8051 Core Embedded Processors &amp; Controllers

8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers

Datasheet

181In Stock

670Expected 22/06/2026

$70.32

$59.54

$55.95

$52.99

Min.: 1
Mult.: 1

Through Hole

PDIP-40

8051

32 I/O

8 bit

No ADC

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

DS89C430-ENG+
Analog Devices / Maxim Integrated
1: $30.52
159In Stock

Mfr. Part No.
DS89C430-ENG+

Mouser Part No
700-DS89C430-ENG

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

Datasheet

159In Stock

$30.52

$25.48

$23.96

$21.70

$21.09

Min.: 1
Mult.: 1

SMD/SMT

TQFP-44

8051

32 I/O

8 bit

No ADC

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

DS89C430-MNL+
Analog Devices / Maxim Integrated
1: $35.03
102In Stock

Mfr. Part No.
DS89C430-MNL+

Mouser Part No
700-DS89C430-MNL

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

Datasheet

102In Stock

$35.03

$29.29

$27.28

$25.59

$24.61

Min.: 1
Mult.: 1

Through Hole

PDIP-40

8051

32 I/O

8 bit

No ADC

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

DS89C430-QNL+
Analog Devices / Maxim Integrated
1: $33.48
141In Stock

Mfr. Part No.
DS89C430-QNL+

Mouser Part No
700-DS89C430-QNL

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

Datasheet

141In Stock

$33.48

$27.98

$26.16

$26.15

$23.45

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

32 I/O

8 bit

No ADC

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

DS89C450-ENL+
Analog Devices / Maxim Integrated
1: $41.80
224In Stock

Mfr. Part No.
DS89C450-ENL+

Mouser Part No
700-DS89C450-ENL

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

Datasheet

224In Stock

$41.80

$35.06

$33.07

$30.16

$29.37

Min.: 1
Mult.: 1

SMD/SMT

TQFP-44

8051

32 I/O

8 bit

No ADC

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

DS89C450-MNL+
Analog Devices / Maxim Integrated
1: $49.00
237In Stock

Mfr. Part No.
DS89C450-MNL+

Mouser Part No
700-DS89C450-MNL

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

Datasheet

237In Stock

$49.00

$41.28

$38.61

$36.39

$35.11

Min.: 1
Mult.: 1

Through Hole

PDIP-40

8051

32 I/O

8 bit

No ADC

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

DS89C450-QNG+
Analog Devices / Maxim Integrated
1: $34.54
166In Stock

Mfr. Part No.
DS89C450-QNG+

Mouser Part No
700-DS89C450-QNG

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

Datasheet

166In Stock

$34.54

$28.88

$27.01

$27.00

$24.23

Min.: 1
Mult.: 1

SMD/SMT

PLCC-44

8051

32 I/O

8 bit

No ADC

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

CY8C3245LTI-163
Infineon Technologies
1: $9.39
783In Stock

Mfr. Part No.
CY8C3245LTI-163

Mouser Part No
727-CY8C3245LTI-163

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

Datasheet

783In Stock

$9.39

$7.30

$6.78

$6.21

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

46 I/O

8 bit

12 bit

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

CY8C3246AXI-138
Infineon Technologies
1: $15.00
646In Stock

Mfr. Part No.
CY8C3246AXI-138

Mouser Part No
727-CY8C3246AXI-138

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

Datasheet

646In Stock

$15.00

$11.85

$10.25

$9.92

View

Min.: 1
Mult.: 1

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

CY8C3246PVI-147
Infineon Technologies
1: $11.55
371In Stock

Mfr. Part No.
CY8C3246PVI-147

Mouser Part No
727-CY8C3246PVI-147

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

Datasheet

371In Stock

$11.55

$9.05

$8.31

$7.66

View

Min.: 1
Mult.: 1

SMD/SMT

SSOP-48

8051

31 I/O

8 bit

12 bit

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

CY8C3446AXI-099
Infineon Technologies
1: $15.11
355In Stock

Mfr. Part No.
CY8C3446AXI-099

Mouser Part No
727-CY8C3446AXI-099

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

Datasheet

355In Stock

$15.11

$11.94

$10.33

$9.99

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

72 I/O

8 bit

12 bit

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

CY8C3666LTI-027
Infineon Technologies
1: $21.72
147In Stock

Mfr. Part No.
CY8C3666LTI-027

Mouser Part No
727-CY8C3666LTI-027

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

Datasheet

147In Stock

$21.72

$17.37

$16.28

$15.56

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

28 I/O

8 bit

12 bit

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

CY8C3866AXI-040
Infineon Technologies
1: $25.91
459In Stock

Mfr. Part No.
CY8C3866AXI-040

Mouser Part No
727-CY8C3866AXI-040

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

Datasheet

459In Stock

$25.91

$20.83

$18.25

$17.72

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

72 I/O

8 bit

20 bit

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

CY8C3866AXI-040T
Infineon Technologies
1: $25.91
601In Stock

Mfr. Part No.
CY8C3866AXI-040T

Mouser Part No
727-CY8C3866AXI-040T

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

Datasheet

601In Stock

Cut Tape

$25.91

$20.83

$19.56

$18.36

View

Reel

$16.59

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

TQFP-100

8051

72 I/O

8 bit

20 bit

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

CY8C3866PVI-070
Infineon Technologies
1: $21.30
237In Stock

Mfr. Part No.
CY8C3866PVI-070

Mouser Part No
727-CY8C3866PVI-070

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

Datasheet

237In Stock

$21.30

$17.02

$14.65

$14.17

View

Min.: 1
Mult.: 1

SMD/SMT

SSOP-48

8051

29 I/O

8 bit

20 bit

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

C8051F061-GQ
Silicon Labs
1: $35.06
1,436In Stock
3,200Expected 07/07/2026
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

1,436In Stock

3,200Expected 07/07/2026

$35.06

$29.97

$28.73

$25.91

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

8051

24 I/O

8 bit

10 bit, 2 x 16 bit

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

C8051F501-IM
Silicon Labs
1: $11.21
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

$11.21

$9.30

$8.37

$7.96

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

8051

40 I/O

8 bit

12 bit

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

C8051F501-IQ
Silicon Labs
1: $12.03
1,548In Stock
End of Life

Mfr. Part No.
C8051F501-IQ

Mouser Part No
634-C8051F501-IQ

End of Life

Silicon Labs

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

Datasheet

1,548In Stock

$12.03

$9.71

$9.06

$8.15

View

Min.: 1
Mult.: 1

SMD/SMT

QFP-48

8051

40 I/O

8 bit

12 bit

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

C8051F580-IQ
Silicon Labs
1: $16.20
1,682In Stock
End of Life

Mfr. Part No.
C8051F580-IQ

Mouser Part No
634-C8051F580-IQ

End of Life

Silicon Labs

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

Datasheet

1,682In Stock

$16.20

$13.19

$12.25

$11.13

View

Min.: 1
Mult.: 1

SMD/SMT

PQFP-48

8051

40 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, SPI, 2xUART, I2C, QFP48

C8051F581-IQR
Silicon Labs
1: $15.47
2,187In Stock
End of Life

Mfr. Part No.
C8051F581-IQR

Mouser Part No
634-C8051F581-IQR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, SPI, 2xUART, I2C, QFP48

Datasheet

2,187In Stock

Cut Tape

$15.47

$12.59

$11.69

$10.61

Reel

$9.73

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-48

8051

40 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU

C8051F005-GQR
Silicon Labs
1: $32.34
325In Stock
NRND

Mfr. Part No.
C8051F005-GQR

Mouser Part No
634-C8051F005-GQR

NRND

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU

Datasheet

325In Stock

Cut Tape

$32.34

Reel

$20.83

Min.: 1
Mult.: 1

: 500

SMD/SMT

TQFP-64

8051

32 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU

C8051F124-GQ
Silicon Labs
1: $43.40
335In Stock
900Expected 09/06/2026
NRND

Mfr. Part No.
C8051F124-GQ

Mouser Part No
634-C8051F124-GQ

NRND

Silicon Labs

8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU

Datasheet

335In Stock

900Expected 09/06/2026

$43.40

$37.36

$35.15

$33.33

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

64 I/O

8 bit

8 bit, 12 bit

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

C8051F130-GQR
Silicon Labs
1: $37.43
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

$37.43

$32.13

$30.68

$27.44

Reel

$26.16

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

TQFP-100

8051

64 I/O

8 bit

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

C8051F850-C-GM
Silicon Labs
1: $2.73
1,473In 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

Datasheet

1,473In Stock

$2.73

$2.24

$2.07

$1.80

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

8051

16 I/O

8 bit

12 bit

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

C8051F860-C-GS
Silicon Labs
1: $2.80
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