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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Program Memory Size
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STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
327In Stock
Min.: 1
Mult.: 1

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, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
189In Stock
Min.: 1
Mult.: 1

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, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
153In Stock
Min.: 1
Mult.: 1

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
816In 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, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
1,626In Stock
Min.: 1
Mult.: 1

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, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
6In Stock
960On Order
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, 1 MB flash, 256 KB RAM, I3C, Ethernet, Dual FDCAN
Datasheet
4In Stock
540On Order
Min.: 1
Mult.: 1

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, 1 MB flash, 256 KB RAM, I3C, Ethernet, Dual FDCAN
Datasheet
54In Stock
1,500On Order
Min.: 1
Mult.: 1

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, 512 KB flash, 128 KB RAM, I3C
Datasheet
1,582In Stock
Min.: 1
Mult.: 1

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
Datasheet
2,927In Stock
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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
1,538In 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
Datasheet
1,551In Stock
Min.: 1
Mult.: 1

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
1,506In Stock
Min.: 1
Mult.: 1

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, crypto
Datasheet
1,411In 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
1,602In Stock
Min.: 1
Mult.: 1

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
Datasheet
882In Stock
Min.: 1
Mult.: 1

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
147In Stock
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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
769In Stock
960On Order
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, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
92In Stock
540Expected 07/09/2026
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
Datasheet
3In Stock
540On Order
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
63In Stock
2,940Expected 24/02/2027
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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN
Datasheet
7In Stock
960On Order
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, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
52In Stock
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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 256 KB flash, 64 KB RAM, I3C, Dual FDCAN
Datasheet
1,493Expected 12/11/2026
Min.: 1
Mult.: 1

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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M33 MCU, 144 MHz, 512 KB flash, 128 KB RAM, I3C, FDCAN, crypto
Datasheet
2,880Expected 21/09/2026
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