ARM Microcontrollers - MCU – Mouser United Kingdom

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STM32C5 Arm® Cortex®-M33 Core Mainstream MCUs

STMicroelectronics STM32C5 Arm^® Cortex^®-M33 Core Mainstream Microcontrollers (MCUs) are designed to support the development of cost-effective applications. This family offers up to 1MB of Flash memory and 256KB of RAM as well as one Ethernet port, octoSPI peripherals, and up to two FDCAN. These MCUs include hardware crypto for SAES, SPKA, and HUK features, and the lines are available in several packages ranging from 20 to 144 pins. For quick prototyping, the user can use either the STMicroelectronics NUCLEO-C5A3ZG (for the STM32C55x/STM32C562 and STM32C59x/5A3) or NUCLEO-C542RE (for the STM32C53x/542) development tools alongside the STM32Cube software ecosystem.

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Part #

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

STM32C552VET6
STMicroelectronics
1: £2.99
639In Stock
New Product

Mfr. Part No.
STM32C552VET6

Mouser Part No
511-STM32C552VET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

Learn More

Datasheet

639In Stock

£2.99

£2.12

£1.85

£1.64

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-100

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

86 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

STM32C542KCU6
STMicroelectronics
1: £2.23
38In Stock
2,940Expected 01/03/2027
New Product

Mfr. Part No.
STM32C542KCU6

Mouser Part No
511-STM32C542KCU6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

Learn More

Datasheet

38In Stock

2,940Expected 01/03/2027

£2.23

£1.63

£1.41

Min.: 1
Mult.: 1
Max.: 50

STM32C5

SMD/SMT

UFQFPN-32

ARM Cortex M33

256 kB

32 bit

12 bit

144 MHz

25 I/O

64 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet, Dual FDCAN

STM32C5A3CGT6
STMicroelectronics
1: £3.54
7In Stock
1,500On Order
New Product

Mfr. Part No.
STM32C5A3CGT6

Mouser Part No
511-STM32C5A3CGT6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet, Dual FDCAN

Learn More

Datasheet

7In Stock

1,500On Order

£3.54

£2.41

£2.16

£1.92

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-48

ARM Cortex M33

1 MB

32 bit

12 bit

144 MHz

38 I/O

256 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C

STM32C551KEU6
STMicroelectronics
1: £1.91
2,686In Stock
New Product

Mfr. Part No.
STM32C551KEU6

Mouser Part No
511-STM32C551KEU6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C

Learn More

Datasheet

2,686In Stock

£1.91

£1.42

£1.22

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

UFQFPN-32

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

25 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

STM32C552CET6
STMicroelectronics
1: £2.05
1,428In Stock
New Product

Mfr. Part No.
STM32C552CET6

Mouser Part No
511-STM32C552CET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

Learn More

Datasheet

1,428In Stock

£2.05

£1.53

£1.32

£1.25

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-48

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

38 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

STM32C552CEU6
STMicroelectronics
1: £2.05
1,495In Stock
New Product

Mfr. Part No.
STM32C552CEU6

Mouser Part No
511-STM32C552CEU6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

Learn More

Datasheet

1,495In Stock

£2.05

£1.53

£1.32

£1.25

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

UFQFPN-48

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

38 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

STM32C552KET6
STMicroelectronics
1: £1.98
1,383In Stock
New Product

Mfr. Part No.
STM32C552KET6

Mouser Part No
511-STM32C552KET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

Learn More

Datasheet

1,383In Stock

£1.98

£1.48

£1.27

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-32

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

25 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

STM32C552KEU6
STMicroelectronics
1: £2.62
3,548In Stock
New Product

Mfr. Part No.
STM32C552KEU6

Mouser Part No
511-STM32C552KEU6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

Learn More

Datasheet

3,548In Stock

£2.62

£1.72

£1.59

£1.38

View

Min.: 1
Mult.: 1

STM32C5

SMD/SMT

UFQFPN-32

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

25 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

STM32C562CET6
STMicroelectronics
1: £2.22
1,208In Stock
New Product

Mfr. Part No.
STM32C562CET6

Mouser Part No
511-STM32C562CET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

Learn More

Datasheet

1,208In Stock

£2.22

£1.65

£1.42

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-48

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

38 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

STM32C562CEU6
STMicroelectronics
1: £2.65
1,222In Stock
New Product

Mfr. Part No.
STM32C562CEU6

Mouser Part No
511-STM32C562CEU6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

Learn More

Datasheet

1,222In Stock

£2.65

£1.96

£1.71

£1.58

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

UFQFPN-48

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

38 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

STM32C562KET6
STMicroelectronics
1: £2.15
1,473In Stock
New Product

Mfr. Part No.
STM32C562KET6

Mouser Part No
511-STM32C562KET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

Learn More

Datasheet

1,473In Stock

£2.15

£1.60

£1.38

£1.32

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-32

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

25 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet

STM32C5A3RGT6
STMicroelectronics
1: £3.00
774In Stock
New Product

Mfr. Part No.
STM32C5A3RGT6

Mouser Part No
511-STM32C5A3RGT6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet

Learn More

Datasheet

774In Stock

£3.00

£2.26

£1.96

£1.82

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-64

ARM Cortex M33

1 MB

32 bit

12 bit

144 MHz

52 I/O

256 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C

STM32C551CET6
STMicroelectronics
1: £1.98
856In Stock
New Product

Mfr. Part No.
STM32C551CET6

Mouser Part No
511-STM32C551CET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C

Learn More

Datasheet

856In Stock

£1.98

£1.48

£1.27

£1.20

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-48

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

38 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

STM32C562RET6
STMicroelectronics
1: £3.09
98In Stock
1,920On Order
New Product

Mfr. Part No.
STM32C562RET6

Mouser Part No
511-STM32C562RET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

Learn More

Datasheet

98In Stock

1,920On Order

£3.09

£2.33

£2.03

£1.75

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-64

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

52 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

STM32C562VET6
STMicroelectronics
1: £2.65
607In Stock
New Product

Mfr. Part No.
STM32C562VET6

Mouser Part No
511-STM32C562VET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

Learn More

Datasheet

607In Stock

£2.65

£2.00

£1.66

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-100

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

86 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

STM32C542CCU6
STMicroelectronics
1: £2.30
99In Stock
1,560Expected 28/09/2026
New Product

Mfr. Part No.
STM32C542CCU6

Mouser Part No
511-STM32C542CCU6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

Learn More

Datasheet

99In Stock

1,560Expected 28/09/2026

£2.30

£1.66

£1.47

Min.: 1
Mult.: 1
Max.: 50

STM32C5

SMD/SMT

UFQFPN-48

ARM Cortex M33

256 kB

32 bit

12 bit

144 MHz

38 I/O

64 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

STM32C542KCT6
STMicroelectronics
1: £2.50
65In Stock
1,500Expected 24/12/2026
New Product

Mfr. Part No.
STM32C542KCT6

Mouser Part No
511-STM32C542KCT6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

Learn More

Datasheet

65In Stock

1,500Expected 24/12/2026

£2.50

£1.63

£1.49

Min.: 1
Mult.: 1
Max.: 50

STM32C5

SMD/SMT

LQFP-32

ARM Cortex M33

256 kB

32 bit

12 bit

144 MHz

25 I/O

64 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C

STM32C551VET6
STMicroelectronics
1: £2.87
52In Stock
1,080On Order
New Product

Mfr. Part No.
STM32C551VET6

Mouser Part No
511-STM32C551VET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C

Learn More

Datasheet

52In Stock

1,080On Order

£2.87

£2.01

£1.75

£1.57

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-100

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

86 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

STM32C552MET6
STMicroelectronics
1: £2.37
85In Stock
New Product

Mfr. Part No.
STM32C552MET6

Mouser Part No
511-STM32C552MET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

Learn More

Datasheet

85In Stock

£2.37

£1.76

£1.53

Min.: 1
Mult.: 1
Max.: 50

STM32C5

SMD/SMT

LQFP-80

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

66 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

STM32C562MET6
STMicroelectronics
1: £2.53
8In Stock
714Expected 23/11/2026
New Product

Mfr. Part No.
STM32C562MET6

Mouser Part No
511-STM32C562MET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto

Learn More

Datasheet

8In Stock

714Expected 23/11/2026

£2.53

£1.89

£1.63

£1.54

View

Min.: 1
Mult.: 1

STM32C5

SMD/SMT

LQFP-80

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

66 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet, Dual FDCAN

STM32C5A3VGT6
STMicroelectronics
1: £4.05
6In Stock
540On Order
New Product

Mfr. Part No.
STM32C5A3VGT6

Mouser Part No
511-STM32C5A3VGT6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet, Dual FDCAN

Learn More

Datasheet

6In Stock

540On Order

£4.05

£2.85

£2.58

£2.36

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-100

ARM Cortex M33

1 MB

32 bit

12 bit

144 MHz

86 I/O

256 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

STM32C542CCT6
STMicroelectronics
1: £1.91
1,493Expected 12/11/2026
New Product

Mfr. Part No.
STM32C542CCT6

Mouser Part No
511-STM32C542CCT6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

Learn More

Datasheet

1,493Expected 12/11/2026

£1.91

£1.42

£1.22

£1.16

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-48

ARM Cortex M33

256 kB

32 bit

12 bit

144 MHz

38 I/O

64 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

STM32C542FCP6
STMicroelectronics
1: £2.42
1,470Expected 03/03/2027
New Product

Mfr. Part No.
STM32C542FCP6

Mouser Part No
511-STM32C542FCP6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN

Learn More

Datasheet

1,470Expected 03/03/2027

£2.42

£1.58

£1.45

£1.25

View

Min.: 1
Mult.: 1

STM32C5

SMD/SMT

TSSOP-20

ARM Cortex M33

256 kB

32 bit

12 bit

144 MHz

14 I/O

64 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tube

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C

STM32C551KET6
STMicroelectronics
1: £2.25
2,947On Order
New Product

Mfr. Part No.
STM32C551KET6

Mouser Part No
511-STM32C551KET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C

Learn More

Datasheet

2,947On Order

£2.25

£1.55

£1.40

£1.26

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-32

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

25 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

STM32C552RET6
STMicroelectronics
1: £2.17
1,920On Order
New Product

Mfr. Part No.
STM32C552RET6

Mouser Part No
511-STM32C552RET6

New Product

STMicroelectronics

ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN

Learn More

Datasheet

1,920On Order

£2.17

£1.62

£1.39

£1.28

Min.: 1
Mult.: 1
Max.: 100

STM32C5

SMD/SMT

LQFP-64

ARM Cortex M33

512 kB

32 bit

12 bit

144 MHz

52 I/O

128 kB

2.7 V

3.6 V

- 40 C

+ 85 C

Tray

STM32C5 Arm® Cortex®-M33 Core Mainstream MCUs

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