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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STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
142In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
984In Stock
Min.: 1
Mult.: 1

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
375In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
560In Stock
Min.: 1
Mult.: 1

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
193In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
149In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
845In Stock
Min.: 1
Mult.: 1

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet, Dual FDCAN
Datasheet
105In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
200In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C
Datasheet
124In Stock
540Expected 29/06/2026
Min.: 1
Mult.: 1

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
197In Stock
1.500Expected 06/07/2026
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
122In Stock
1.500Expected 18/06/2026
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
110In Stock
540Expected 09/07/2026
Min.: 1
Mult.: 1
Max.: 50

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet, Dual FDCAN
Datasheet
288In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C
Datasheet
1.548In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C
Datasheet
1.635In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
1.737In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
1.610In Stock
Min.: 1
Mult.: 1

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
1.663In Stock
Min.: 1
Mult.: 1

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 1 MB flash, 256 KB RAM, I3C, Ethernet
Datasheet
25In Stock
960Expected 03/08/2026
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C
Datasheet
23In Stock
2.940Expected 03/08/2026
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
99In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
66In Stock
Min.: 1
Mult.: 1
Max.: 25

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
82In Stock
Min.: 1
Mult.: 1

STM32C5 SMD/SMT LQFP-64 ARM Cortex M33 256 kB 32 bit 12 bit 144 MHz 52 I/O 64 kB 2.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
38In Stock
1.500Expected 23/07/2026
Min.: 1
Mult.: 1
Max.: 25

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