ST STM32G0 series, ARM Cortex-M0+ 32-Bit Single-Core MCU, 64MHz, 64KB Flash, 8K x 8 RAM, 1.7V~3.6V, 44 I/O, 48-UFQFN Exposed Pad, -40°C~85°C.
| Parameter | Value |
|---|---|
| Series | STM32G0 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.7V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 64MHz |
| Package | Tape & Reel (TR) |
| RAM size | 8K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 44 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 48-UFQFN Exposed Pad |
| Data converters | A/D 19x12b |
| Program memory size | 64KB (64K x 8) |
Housed in a 48-UFQFN with an exposed pad (7x7 mm body), the package is compact enough for space-constrained PCBs while the thermal pad provides a low-thermal-resistance path to the ground plane. The supplier device package is 48-UFQFPN (7x7), so the footprint is consistent across the STM32G0 series in this pin count.
The STM32G031C6U6 is a lower-density variant with 32 KB Flash. The STM32G031C8U6TR doubles the Flash to 64 KB while remaining pin-compatible in the same 48-UFQFPN package, so it is a direct drop-in upgrade for designs needing more code space.
The Cortex-M0+ core is supported by the full ARM ecosystem: STM32CubeIDE, Keil MDK, IAR EWARM, and GCC-based toolchains. Debug and programming use the standard SWD interface via ST-Link or third-party probes.
The base part number is identical; the TR suffix indicates tape-and-reel packaging for automated pick-and-place. The die, firmware, and electrical characteristics are the same.