216 MHz Cortex-M7 — what that means for throughput
The STM32F722ICK6 is a 32-bit ARM Cortex-M7 single-core MCU from STMicroelectronics, clocked at 216 MHz. That clock rate, combined with the Cortex-M7's dual-issue superscalar pipeline and single-precision FPU, gives it enough headroom for real-time control loops, audio processing, or running a lightweight RTOS with a TCP/IP stack. The 256 KB Flash and 256 KB RAM are balanced for mid-complexity firmware — think motor drives with field-oriented control, or a CAN gateway aggregating several sensor nodes. The 140 I/O pins in the 176+25 UFBGA package (10x10 mm) mean you can route a fair amount of parallel data or multiple serial buses without an external GPIO expander.
Connectivity and peripherals — what is onboard
This MCU carries CANbus, USB, SPI, I²C, QSPI, SAI, and UART/USART interfaces, plus an EBI/EMI for external memory expansion. The QSPI interface lets you attach a serial NOR Flash for code shadowing or data logging without chewing up parallel bus pins. The SAI peripheral supports I²S audio — useful for voice-command or audio-alert subsystems in industrial panels. Brown-out detect, POR, and a watchdog timer are built in, so a simple external supervisor may be enough for many applications.
Temperature grade and environment
Rated for -40°C to 85°C ambient, this part fits industrial control cabinets, outdoor telecom enclosures, and factory-floor equipment that sees seasonal temperature swings but stays below the automotive under-hood threshold. The supply range of 1.7 V to 3.6 V allows single-cell Li-ion or two-alkaline operation in portable instrumentation, though at the low end the 216 MHz clock may need a boost converter to maintain margin.