STMicroelectronics STM32F0 series, ARM Cortex-M0, 32-bit, 48 MHz, 32 KB Flash, 4K x 8 RAM, 27 I/O, I²C/SPI/UART, 10x12-bit ADC, 2.0–3.6 V, -40 to 85 °C, 32-UFQFPN (5x5).
| Parameter | Value |
|---|---|
| Series | STM32F0 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 48MHz |
| Package | Tray |
| RAM size | 4K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, I²S, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 27 |
| Core processor | ARM® Cortex®-M0 |
| Case | 32-UFQFN Exposed Pad |
| Data converters | A/D 10x12b |
| Program memory size | 32KB (32K x 8) |
The STM32F050K6U6A: 32 KB of Flash and 4 KB of SRAM set a firm ceiling on firmware complexity. Expect to fit a bootloader, a modest application loop, and a few hundred bytes of state variables. No room for a full RTOS or a large lookup table — plan for a bare-metal scheduler or a lightweight event loop.
It is not qualified for automotive under-hood or extended-temperature industrial beyond 85 °C.
ST has not published a direct pin-compatible replacement for the STM32F050K6U6A. For a new design, consider the STM32F030 or STM32G030 series in a similar 32-pin QFN package, but verify pinout and peripheral compatibility against your board.
The core runs at 48 MHz, which is the maximum clock for this Cortex-M0 device.
It comes in a 32-UFQFPN (5x5 mm) package with an exposed pad, offering 27 I/O pins.