The 80 MHz ceiling is the performance tier that separates this part from the lower-speed STM32L0/ family; if your algorithm needs a hardware FPU and DSP instructions, the Cortex-M4 core here delivers that without stepping up to the higher-power STM32F4 series.
WLCSP-64 package — board area vs assembly trade-off
Housed in a 64-ball WLCSP (wafer-level chip-scale package) measuring 3.14 x 3.13 mm, this part saves significant board area compared to a QFP or BGA of the same I/O count. The trade-off: WLCSP requires a solder-bump reflow process and careful handling — the package is moisture-sensitive and the balls are the component's sole mechanical attachment.
Connectivity and analog integration
On the peripheral side, this MCU includes CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, and USB — enough to interface with industrial fieldbuses, external Flash via QSPI, and human-machine interfaces. The analog subsystem integrates a 16-channel 12-bit ADC and two 12-bit DACs, plus brown-out detect, DMA, LCD drive, PWM, and a watchdog timer.
It is not qualified to AEC-Q100, so it is not intended for under-hood or safety-critical automotive domains.