STM32C552RCT6

STM32C552RCT6 is a mainstream 32-bit microcontroller from STMicroelectronics in an LQFP-64 package, built on an Arm Cortex-M33 core with FPU and DSP instructions at 144 MHz, with 512 KB of dual-bank Flash, 128 KB of SRAM, an I3C port and USB 2.0 full-speed on a 2.7 to 3.6 V supply. The FDCAN controller is the selection point of the 552 branch: it is the feature that separates the STM32C552 from the otherwise closely matched STM32C551, bringing CAN FD networking to industrial gateways, motor drives and vehicle-adjacent equipment that must join modern CAN networks. Dual-bank Flash supports live firmware update, and the 64-pin package balances I/O count against board area between the 48-pin and 100-pin family options. Selection advice: order a 552 code whenever the design needs FDCAN - no firmware setting adds it to a 551; if the product has no CAN requirement, the STM32C551 codes cover the same core and memory platform. ST announced the STM32C5 series entering production in March 2026 and the eStore lists this code as Active. Parameters verified against STMicroelectronics documentation.