STMicroelectronics STM32L041C6U6, STM32L0 series, 32-bit ARM Cortex-M0+ MCU, 32 MHz, 32 KB Flash, 8 KB RAM, 1 KB EEPROM, 38 I/O, I²C/SPI/UART, -40 to 85°C, 48-UFQFPN.
| Parameter | Value |
|---|---|
| Series | STM32L0 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.65V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 32MHz |
| Package | Tray |
| RAM size | 8K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 1K x 8 |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 38 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 48-UFQFN Exposed Pad |
| Data converters | A/D 10x12b |
| Program memory size | 32KB (32K x 8) |
The 1 KB EEPROM is a genuine hardware EEPROM, not emulated Flash, so you can store calibration constants or configuration bytes without wearing out a Flash sector.
The 48-UFQFPN package with exposed pad helps pull heat out when the core is running flat-out at 32 MHz, though in practice most designs will clock down to save power.
Within the STM32L0 series, pin-compatible alternatives exist with different Flash/RAM densities — for example, the STM32L031 and STM32L051 families share the same 48-pin UFQFPN footprint. The exact memory and peripheral set varies, so check the specific part's datasheet for peripheral compatibility before substituting.