The 72 MHz core clock with the Cortex-M4 FPU lets this part handle sensor fusion, motor-control algorithms, or digital power loops that need floating-point arithmetic without cycle-counting. The 384 KB Flash gives room for a moderate firmware image plus an OTA staging buffer; the 64 KB SRAM supports several real-time data buffers and a modest stack. If your application needs more working memory, the STM32F3 family offers density upgrades, but for a typical mixed-signal control board — say, a three-phase motor drive with current sensing — this memory split is well matched.
I/O and peripheral set for board-level connectivity
With 51 I/O lines, the STM32F302RDT6TR can connect to multiple external sensors, actuators, and displays. The 16-channel 12-bit ADC and single 12-bit DAC cover analog front-end needs without an external converter. The internal oscillator reduces BOM count, though an external crystal can be added for tighter timing.
Package and supply: 64-LQFP, 2V to 3.6V
Housed in a 64-LQFP package (10x10 mm body), the part is a surface-mount device that reflows on standard lead-free profiles. The supply range of 2V to 3.6V lets it run from a 3.3V rail or a 2.5V rail, and it can tolerate a 3.6V absolute maximum. The 64-LQFP footprint is common across many STM32F3 variants, so a layout can often accommodate a pin-compatible upgrade or second source without a board spin.