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

STM32C542CCU6
STMicroelectronics
1: $3.36
195In Stock
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

Datasheet

195In Stock

$3.36

$2.21

$2.05

Min.: 1
Mult.: 1
Max.: 25

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

STM32C552MET6
STMicroelectronics
1: $2.74
149In 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

Datasheet

149In Stock

$2.74

$2.04

$1.86

Min.: 1
Mult.: 1
Max.: 25

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

STM32C552VET6
STMicroelectronics
1: $2.90
855In 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

Datasheet

855In Stock

$2.90

$2.16

$1.79

Min.: 1
Mult.: 1
Max.: 25

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

STM32C5A3CGT6
STMicroelectronics
1: $5.15
150In Stock
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

Datasheet

150In Stock

$5.15

$3.40

$3.11

Min.: 1
Mult.: 1
Max.: 25

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

STM32C542KCU6
STMicroelectronics
1: $3.33
377In Stock
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

Datasheet

377In Stock

$3.33

$2.16

$1.98

Min.: 1
Mult.: 1
Max.: 25

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

STM32C551VET6
STMicroelectronics
1: $2.81
134In Stock
540Expected 2026/06/12
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

Datasheet

134In Stock

540Expected 2026/06/12

$2.81

$2.11

$1.74

Min.: 1
Mult.: 1
Max.: 25

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

STM32C552KET6
STMicroelectronics
1: $2.30
199In Stock
1,500Expected 2026/06/18
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

Datasheet

199In Stock

1,500Expected 2026/06/18

$2.30

$1.70

$1.55

Min.: 1
Mult.: 1
Max.: 25

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

STM32C562KET6
STMicroelectronics
1: $2.49
127In Stock
1,500Expected 2026/06/22
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

Datasheet

127In Stock

1,500Expected 2026/06/22

$2.49

$1.85

$1.69

Min.: 1
Mult.: 1
Max.: 25

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

STM32C562VET6
STMicroelectronics
1: $3.08
120In Stock
540Expected 2026/06/12
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

Datasheet

120In Stock

540Expected 2026/06/12

$3.08

$2.30

$1.92

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

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

STM32C552KEU6
STMicroelectronics
1: $2.30
142In 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

Datasheet

142In Stock

$2.30

$1.70

$1.55

Min.: 1
Mult.: 1
Max.: 25

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

STM32C552RET6
STMicroelectronics
1: $2.51
1,030In Stock
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

Datasheet

1,030In Stock

$2.51

$1.86

$1.70

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

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

STM32C542RCT6
STMicroelectronics
1: $2.35
120In Stock
New Product

Mfr. Part No.
STM32C542RCT6

Mouser Part No
511-STM32C542RCT6

New Product

STMicroelectronics

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

Datasheet

120In Stock

$2.35

$1.74

$1.59

Min.: 1
Mult.: 1
Max.: 25

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

STM32C5A3VGT6
STMicroelectronics
1: $5.34
293In Stock
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

Datasheet

293In Stock

$5.34

$3.68

$3.42

Min.: 1
Mult.: 1
Max.: 25

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

STM32C551CET6
STMicroelectronics
1: $2.30
1,612In 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

Datasheet

1,612In Stock

$2.30

$1.70

$1.55

Min.: 1
Mult.: 1
Max.: 25

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

STM32C551KET6
STMicroelectronics
1: $2.22
1,646In Stock
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

Datasheet

1,646In Stock

$2.22

$1.64

$1.49

Min.: 1
Mult.: 1
Max.: 25

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

STM32C552CET6
STMicroelectronics
1: $2.37
1,775In 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

Datasheet

1,775In Stock

$2.37

$1.76

$1.60

Min.: 1
Mult.: 1
Max.: 25

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

STM32C552CEU6
STMicroelectronics
1: $2.37
1,610In 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

Datasheet

1,610In Stock

$2.37

$1.76

$1.60

Min.: 1
Mult.: 1
Max.: 25

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

STM32C562CEU6
STMicroelectronics
1: $2.57
1,675In 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

Datasheet

1,675In Stock

$2.57

$1.91

$1.74

Min.: 1
Mult.: 1
Max.: 25

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

STM32C562RET6
STMicroelectronics
1: $2.70
1,020In Stock
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

Datasheet

1,020In Stock

$2.70

$2.01

$1.84

Min.: 1
Mult.: 1
Max.: 25

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

STM32C551KEU6
STMicroelectronics
1: $2.22
73In 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

Datasheet

73In Stock

$2.22

$1.64

$1.49

Min.: 1
Mult.: 1
Max.: 25

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

STM32C562KEU6
STMicroelectronics
1: $2.49
99In Stock
New Product

Mfr. Part No.
STM32C562KEU6

Mouser Part No
511-STM32C562KEU6

New Product

STMicroelectronics

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

Datasheet

99In Stock

$2.49

$1.85

$1.69

Min.: 1
Mult.: 1
Max.: 25

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

STM32C542CCT6
STMicroelectronics
1: $2.22
58In Stock
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

Datasheet

58In Stock

$2.22

$1.64

$1.49

Min.: 1
Mult.: 1
Max.: 25

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

STM32C562MET6
STMicroelectronics
1: $2.93
66In Stock
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

Datasheet

66In Stock

$2.93

$2.17

$2.00

Min.: 1
Mult.: 1
Max.: 25

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

STM32C5A3RGT6
STMicroelectronics
1: $5.26
38In Stock
960Expected 2026/07/23
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

Datasheet

38In Stock

960Expected 2026/07/23

$5.26

$3.48

$3.17

Min.: 1
Mult.: 1
Max.: 25

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

STM32C562CET6
STMicroelectronics
1: $2.57
100In Stock
1,500Expected 2026/07/06
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

Datasheet

100In Stock

1,500Expected 2026/07/06

$2.57

$1.91

$1.74

Min.: 1
Mult.: 1
Max.: 25