80 MHz Cortex-M4 with 256 KB Flash — mid-range STM32L4 for industrial and battery-edge designs
The 48-LQFP package gives access to 39 I/Os, and the peripheral set includes CANbus, multiple I²C and SPI interfaces, QSPI, SAI, and a 12-bit ADC with 10 channels plus two 12-bit DACs. Typical applications span industrial sensor nodes, portable instrumentation, motor-control interfaces, and IoT edge devices where the balance of compute throughput and active-mode power matters.
What the 80 MHz core and memory map mean for the BOM decision
The 64 KB SRAM (organized as 64K x 8) supports a few hundred bytes of frame buffer or a moderate data logger. If your firmware image and heap fit within these boundaries, this part avoids the cost uplift of the larger Flash siblings.
The active status also keeps the part available through franchised distribution channels, which simplifies the audit trail for quality-sensitive builds.