Cortex-M4 core with 80 MHz ceiling and memory headroom
The STM32L476ZGT6 is an ARM Cortex-M4 32-bit single-core MCU clocked at 80 MHz — the DSP instruction set and single-precision FPU handle sensor fusion, motor-control loops, and audio processing without an external coprocessor.
Peripheral set for mixed-signal and connectivity-heavy designs
The 24-channel 12-bit ADC and dual 12-bit DAC cover multi-sensor acquisition and analog output — enough channels for a 3-phase current-sense plus temperature monitoring without external muxing. Connectivity includes CANbus, USB OTG, QSPI, SAI, and multiple UART/SPI/I²C interfaces, so the MCU can act as a gateway between a CAN fieldbus, a USB host, and a QSPI NOR Flash for data logging. On-chip peripherals like the LCD driver, DMA controller, and brown-out detect reduce external component count — the LCD segment drive eliminates a separate display controller for segment-based alphanumeric panels.
144-LQFP package and board integration
Housed in a 144-LQFP with a 20x20 mm body and 0.5 mm pitch, the package requires a 4-layer PCB for reliable fan-out of the 114 I/O — the inner layers carry the 1.8 V core rail and ground plane. Surface-mount assembly with a standard JEDEC moisture sensitivity level (MSL) profile; the tray packaging supports both hand-solder rework and reflow oven processing without special handling beyond the bake-out schedule.
Active lifecycle and compliance status
ROHS3 compliant, with no exemptions that expire in the near term. The base product number STM32L476 covers the full family, so future die revisions share the same order code and pinout.