168 MHz Cortex-M4 with 1 MB Flash — the BOM-fit tier
It belongs to the STM32F4 series, which brings a hardware floating-point unit and DSP instructions to the mid-density MCU tier — the deciding factor when a design needs real-time FFT, motor-control math, or audio processing without an external DSP. The 1 MB Flash (1M x 8) and 192K x 8 RAM give enough headroom for a full RTOS, a TCP/IP stack, and a moderate application image without pushing into the 2 MB density bracket.
Temperature grade and package — 105°C ceiling in a 100-LQFP
The 100-LQFP (14x14 mm body) is a hand-solderable, inspectable package that keeps board-level rework straightforward — no BGA reball station needed.
ROHS3 compliant.