64 MHz Cortex-M0+ with USB Type-C PD built in
It is part of the STM32G0 series, designed for cost-sensitive, power-aware applications that still need a rich peripheral set. The standout feature is the integrated USB Type-C Power Delivery controller, which eliminates a separate PD PHY and controller IC from the BOM — a real saving in board area and component count for USB-C enabled designs. The 64-LQFP package gives access to 60 general-purpose I/O lines, enough for sensor aggregation, motor control feedback, or human-machine interface panels.
Memory and peripheral budget for the BOM check
The Flash is enough for a USB-PD stack plus a real-time control loop or a Modbus RTU application; the 36 KB RAM leaves headroom for multiple packet buffers and a modest heap. The 12-bit ADC has 19 channels, and there are two 12-bit DACs — enough analog front-end for current sensing or set-point generation without external converters. Brown-out detect, POR, and a windowed watchdog are on-chip, so the external supervisor IC can often be dropped.
No extended or automotive temperature grade is listed for this variant, so if the application needs 105°C or 125°C ambient, check the STM32G0 line for a higher-temperature ordering code.