STM32C5: upgrade your entry-level design without breaking the bank
A modern platform enabling a smooth design journey
A modern platform enabling a smooth design journey
Powered by an Arm® Cortex®‑M33 core and ST’s modern 40 nm platform, the STM32C5 series sets new performance standards for cost‑sensitive designs. Running at 144 MHz and delivering up to 593 CoreMark (three times the performance of typical Cortex‑M0+ MCUs), it brings higher processing capability without increasing your BoM.
Built for industrial needs, the STM32C5 combines a robust platform, advanced security, and the proven STM32 ecosystem, offering a cost‑effective way to deliver more capability while keeping designs efficient and reliable.
Key benefits
Enhanced performance
Delivers 593 CoreMark on ST’s 40 nm Cortex‑M33 for faster, richer applications.
Cost optimized
Starts at $0.64/10KU, bringing more capability without increasing makers’ BOM cost.
Built on STM32 strengths
Leverages the evolving STM32Cube ecosystem for faster development and easy migration across STM32.
Key applications
Smart homes & appliances
Factory automation
Entertainment
Key features
- 144 MHz Arm® Cortex®‑M33 core with FPU and DSP
- Up to 593 CoreMark
- Up to 512 Kbytes of RAM, 128 Kbytes of SRAM
- 2.7–3.6 V, <100 µA/MHz dynamic power
- Ambient temperature up to 125°C without impact
- Ethernet, USB, I3C, FDCAN, OCTOSPI
- Up to 3x ADC, 2x DAC, 2x COMP, OPAMP
- PSA L3 / SESIP3 target certification
- Optional SCA‑resistant hardware crypto with key storage
- Coupling & chaining bridge with symmetric and asymmetric crypto accel
What our customers are saying
What our customers are saying
“At SIT, we work in safety-critical gas and HVAC environments where reliability is essential. For our new generation of Burner Integrated Control platform, choosing the STM32C5 was a natural decision. ST’s MCU provides strong and predictable real-time performance, enabling us to manage combustion, flame detection, and safety interlocks with accuracy, even within a compact footprint. We were able to reuse a large part of our validated firmware, speeding up development, simplifying certification; and the result is a robust and scalable control platform designed for long-term reliability and compliance.”
Dennis Agnello, Electronics Business Line Director, Heating & Ventilation, SIT Group
Getting started
Starting from $14.27 per unit
Fast prototyping made easy
Quickly prototype, test interfaces, and validate your design with STM32C5 Nucleo‑64 boards.
Starting from $28.40 per unit
Accelerate your HMI development
Build responsive HMIs fast using a Riverdi 1.54" STM32C5‑ready Nucleo‑64 display board with a 240×240 IPS touch screen.
Starting from $29.43 per unit
Boost secure connectivity
Leverage a 144‑pin STM32C5 Nucleo board with USB FS, Ethernet, Arduino IF™, and hardware crypto to build and test secure connected prototypes.
First STM32 MCU to leverage the evolution of the STM32Cube ecosystem
Free STM32Cube initialization code generator
Kickstart your design in less time
STM32CubeMX2 introduces a faster, upgraded initialization flow, available first for STM32C5.
Free embedded software
Simplify application development and debugging
Ensure your application’s performance with the robust debugging capabilities of the STM32CubeC5.
New STM32Cube online documentation
Access STM32 documentation faster
Access STM32 documentation faster Easier navigation, faster search, and a clearer structure to support your STM32 projects.