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8051 Core Microcontrollers - MCU

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Types of Microcontrollers - MCU

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Part #

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

CY8C3446AXI-099T
Infineon Technologies
1: £12.48
113In Stock

Mfr. Part No.
CY8C3446AXI-099T

Mouser Part No
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

£12.48

£9.79

£8.82

£8.34

View

Reel

£7.05

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

72 I/O

1.71 V

5.5 V

+ 85 C

Reel, Cut Tape, MouseReel

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

CY8C3446LTI-085
Infineon Technologies
1: £12.13
6In Stock

Mfr. Part No.
CY8C3446LTI-085

Mouser Part No
727-CY8C3446LTI-085

Infineon Technologies

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

Learn More

Datasheet

6In Stock

£12.13

£9.49

£8.55

£8.08

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-68

8051

8 bit

50 MHz

64 kB

8 kB

12 bit

48 I/O

1.71 V

5.5 V

+ 85 C

Tray

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

C8051F022-GQ
Silicon Labs
1: £26.58
7In Stock
End of Life

Mfr. Part No.
C8051F022-GQ

Mouser Part No
634-C8051F022-GQ

End of Life

Silicon Labs

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

Datasheet

7In Stock

£26.58

£21.36

£20.21

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

8 bit

25 MHz

64 kB

4.35 kB

8 bit, 10 bit

64 I/O

2.7 V

3.6 V

+ 85 C

Tray

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

C8051F043-GQ
Silicon Labs
1: £20.12
6In Stock
End of Life

Mfr. Part No.
C8051F043-GQ

Mouser Part No
634-C8051F043-GQ

End of Life

Silicon Labs

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

Datasheet

6In Stock

£20.12

£15.84

£14.88

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit

32 I/O

2.7 V

3.6 V

+ 85 C

Tray

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

C8051F064-GQ
Silicon Labs
1: £23.71
2In Stock
End of Life

Mfr. Part No.
C8051F064-GQ

Mouser Part No
634-C8051F064-GQ

End of Life

Silicon Labs

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

Datasheet

2In Stock

£23.71

£19.32

£18.08

£16.88

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

8 bit

25 MHz

64 kB

4.25 kB

16 bit

59 I/O

2.7 V

3.6 V

+ 85 C

Tray

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

C8051F120-GQ
Silicon Labs
1: £40.46
5In Stock
2,250Expected 22/09/2026
End of Life

Mfr. Part No.
C8051F120-GQ

Mouser Part No
634-C8051F120-GQ

End of Life

Silicon Labs

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

Datasheet

5In Stock

2,250Expected 22/09/2026

£40.46

£31.24

£28.69

£28.57

Quote

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

8 bit

100 MHz

128 kB

8.25 kB

8 bit, 12 bit

64 I/O

3 V

3.6 V

+ 85 C

Tray

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

C8051F121-GQ
Silicon Labs
1: £38.23
5In 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

5In Stock

£38.23

£30.87

£28.65

£27.80

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

8051

8 bit

100 MHz

128 kB

8.25 kB

8 bit, 12 bit

32 I/O

3 V

3.6 V

+ 85 C

Tray

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

C8051F124-GQ
Silicon Labs
1: £33.54
8In Stock
1,350Expected 04/12/2026
End of Life

Mfr. Part No.
C8051F124-GQ

Mouser Part No
634-C8051F124-GQ

End of Life

Silicon Labs

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

Datasheet

8In Stock

1,350Expected 04/12/2026

£33.54

£28.26

£26.07

£25.16

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

128 kB

8.25 kB

8 bit, 12 bit

64 I/O

2.7 V

3.6 V

+ 85 C

Tray

8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU

C8051F127-GQ
Silicon Labs
1: £31.18
6In Stock
End of Life

Mfr. Part No.
C8051F127-GQ

Mouser Part No
634-C8051F127-GQ

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU

Datasheet

6In Stock

£31.18

£25.28

£23.40

£22.44

Min.: 1
Mult.: 1

SMD/SMT

TQFP-64

8051

8 bit

50 MHz

128 kB

8.25 kB

8 bit, 10 bit

32 I/O

2.7 V

3.6 V

+ 85 C

Tray

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

C8051F131-GQR
Silicon Labs
1: £29.66
9In Stock
End of Life

Mfr. Part No.
C8051F131-GQR

Mouser Part No
634-C8051F131-GQR

End of Life

Silicon Labs

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

Datasheet

9In Stock

Cut Tape

£29.66

£24.82

£21.83

£21.03

£20.35

Reel

£19.83

Min.: 1
Mult.: 1

: 500

SMD/SMT

TQFP-64

8051

8 bit

100 MHz

128 kB

8.25 kB

10 bit

32 I/O

3 V

3.6 V

+ 85 C

Reel, Cut Tape

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

C8051F132-GQ
Silicon Labs
1: £22.72
60In Stock
End of Life

Mfr. Part No.
C8051F132-GQ

Mouser Part No
634-C8051F132-GQ

End of Life

Silicon Labs

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

Datasheet

60In Stock

£22.72

£19.99

£18.04

£17.18

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

8 bit

100 MHz

64 kB

8.25 kB

10 bit

64 I/O

3 V

3.6 V

+ 85 C

Tray

8-bit Microcontrollers - MCU USB-Flash-32k-ADC-TQFP48

C8051F382-GQR
Silicon Labs
1: £4.73
298In Stock
End of Life

Mfr. Part No.
C8051F382-GQR

Mouser Part No
634-C8051F382-GQR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU USB-Flash-32k-ADC-TQFP48

Datasheet

298In Stock

Cut Tape

£4.73

£3.62

£3.35

£3.22

Reel

£3.22

Min.: 1
Mult.: 1

: 500

SMD/SMT

TQFP-48

8051

8 bit

48 MHz

32 kB

2.25 kB

10 bit

40 I/O

2.7 V

5.25 V

+ 85 C

Reel, Cut Tape

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

C8051F384-GQ
Silicon Labs
1: £5.55
2In Stock
End of Life

Mfr. Part No.
C8051F384-GQ

Mouser Part No
634-C8051F384-GQ

End of Life

Silicon Labs

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

Learn More

Datasheet

2In Stock

£5.55

£4.61

£4.29

£3.65

Min.: 1
Mult.: 1

SMD/SMT

TQFP-48

8051

8 bit

48 MHz

64 kB

4.35 kB

40 I/O

2.7 V

5.25 V

+ 85 C

Tray

8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFP48

C8051F500-IQR
Silicon Labs
1: £10.37
23In Stock
End of Life

Mfr. Part No.
C8051F500-IQR

Mouser Part No
634-C8051F500-IQR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFP48

Datasheet

23In Stock

Cut Tape

£10.37

£8.60

£7.39

£7.32

Reel

£6.76

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

TQFP-48

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

40 I/O

1.8 V

5.25 V

+ 125 C

Reel, Cut Tape, MouseReel

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

C8051F501-IQ
Silicon Labs
1: £9.36
20In 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

20In Stock

£9.36

£7.75

£6.64

£6.60

Min.: 1
Mult.: 1

SMD/SMT

QFP-48

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

40 I/O

1.8 V

5.25 V

+ 125 C

AEC-Q100

Tray

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

C8051F503-IM
Silicon Labs
1: £8.27
44In Stock
End of Life

Mfr. Part No.
C8051F503-IM

Mouser Part No
634-C8051F503-IM

End of Life

Silicon Labs

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

Datasheet

44In Stock

£8.27

£6.45

£6.00

£5.50

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

8051

8 bit

50 MHz

64 kB

4.25 kB

12 bit

25 I/O

1.8 V

5.25 V

+ 125 C

AEC-Q100

Tube

8-bit Microcontrollers - MCU 50 MIPS, 32 kB, 4 kB, SPI, UART, I2C, QFP48

C8051F505-IQR
Silicon Labs
1: £8.53
21In Stock
End of Life

Mfr. Part No.
C8051F505-IQR

Mouser Part No
634-C8051F505-IQR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 50 MIPS, 32 kB, 4 kB, SPI, UART, I2C, QFP48

Datasheet

21In Stock

Cut Tape

£8.53

£6.66

£6.19

£6.02

Reel

£6.02

Min.: 1
Mult.: 1

: 500

SMD/SMT

8051

8 bit

50 MHz

32 kB

4.25 kB

12 bit

40 I/O

1.8 V

5.25 V

+ 125 C

Reel, Cut Tape

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

C8051F581-IM
Silicon Labs
1: £11.82
106In Stock
End of Life

Mfr. Part No.
C8051F581-IM

Mouser Part No
634-C8051F581-IM

End of Life

Silicon Labs

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

Learn More

Datasheet

106In Stock

£11.82

£9.25

£8.62

£7.91

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

8051

8 bit

50 MHz

128 kB

8.25 kB

12 bit

40 I/O

1.8 V

5.25 V

+ 125 C

AEC-Q100

Tube

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

C8051F581-IQ
Silicon Labs
1: £12.80
15In Stock
End of Life

Mfr. Part No.
C8051F581-IQ

Mouser Part No
634-C8051F581-IQ

End of Life

Silicon Labs

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

Learn More

Datasheet

15In Stock

£12.80

£10.62

£9.04

£8.66

£8.41

Min.: 1
Mult.: 1

SMD/SMT

QFP-48

8051

8 bit

50 MHz

128 kB

8.25 kB

12 bit

40 I/O

1.8 V

5.25 V

+ 125 C

AEC-Q100

Tray

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

C8051F581-IQR
Silicon Labs
1: £12.68
15In 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

15In Stock

Cut Tape

£12.68

£10.33

£8.94

£8.56

Reel

£7.93

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-48

8051

8 bit

50 MHz

128 kB

8.25 kB

12 bit

40 I/O

1.8 V

5.25 V

+ 125 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

C8051F931-G-GM
Silicon Labs
1: £3.86
305In Stock
End of Life

Mfr. Part No.
C8051F931-G-GM

Mouser Part No
634-C8051F931-G-GM

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

Learn More

Datasheet

305In Stock

£3.86

£2.94

£2.71

£2.45

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-24

8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit

16 I/O

1.8 V

3.6 V

+ 85 C

Tube

8-bit Microcontrollers - MCU 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

C8051F931-G-GMR
Silicon Labs
1: £4.12
99In Stock
End of Life

Mfr. Part No.
C8051F931-G-GMR

Mouser Part No
634-C8051F931-G-GMR

End of Life

Silicon Labs

8-bit Microcontrollers - MCU 64KB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN24

Learn More

Datasheet

99In Stock

Cut Tape

£4.12

£3.25

£2.91

£2.69

Reel

£2.36

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

SMD/SMT

8051

8 bit

25 MHz

64 kB

4.25 kB

10 bit

16 I/O

900 mV

3.6 V

+ 85 C

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU CAN/C51 Boot CAN

AT89C51CC02CA-RATUM
Microchip Technology
1: £6.14
500Expected 29/09/2026

Mfr. Part No.
AT89C51CC02CA-RATUM

Mouser Part No
556-A89C51C02CARATUM

Microchip Technology

8-bit Microcontrollers - MCU CAN/C51 Boot CAN

Learn More

Datasheet

500Expected 29/09/2026

£6.14

£5.63

£5.12

Min.: 1
Mult.: 1

SMD/SMT

VQFP-32

8051

8 bit

40 MHz

16 kB

512 B

10 bit

20 I/O

3 V

5.5 V

+ 85 C

Tray

8-bit Microcontrollers - MCU Next gen available (F380-GQ) 48 MIPS, 64KB,10ADC,USB,48Pin

C8051F340-GQR
Silicon Labs
1: £18.63
500Expected 09/10/2026

Mfr. Part No.
C8051F340-GQR

Mouser Part No
634-C8051F340-GQR

Silicon Labs

8-bit Microcontrollers - MCU Next gen available (F380-GQ) 48 MIPS, 64KB,10ADC,USB,48Pin

Datasheet

500Expected 09/10/2026

Cut Tape

£18.63

£15.05

£13.77

£13.12

View

Reel

£11.57

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

TQFP-48

8051

8 bit

48 MHz

64 kB

4.25 kB

10 bit

40 I/O

2.7 V

5.25 V

+ 85 C

Reel, Cut Tape, MouseReel

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

C8051F353-GM
Silicon Labs
1: £8.70
1,264Expected 02/10/2026

Mfr. Part No.
C8051F353-GM

Mouser Part No
634-C8051F353-GM

Silicon Labs

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

Datasheet

1,264Expected 02/10/2026

£8.70

£6.98

£6.29

£5.88

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-28

8051

8 bit

50 MHz

8 kB

768 B

16 bit

17 I/O

2.7 V

3.6 V

+ 85 C

Tube

8051 Core Microcontrollers - MCU

Types of Microcontrollers - MCU

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Company

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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
QFN-36

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
8 kB

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