STMicroelectronics STM32L0 series STM32L011K4U3, ARM Cortex-M0+ 32-bit MCU, 32MHz, 16KB Flash, 2K x 8 SRAM, 512 x 8 EEPROM, 1.65V-3.6V, -40°C to 125°C, 32-UFQFN exposed pad.
| Parameter | Value |
|---|---|
| Series | STM32L0 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.65V ~ 3.6V |
| Operating temperature | -40°C ~ 125°C (TA) |
| Speed | 32MHz |
| Package | Tray |
| RAM size | 2K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 512 x 8 |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, IrDA, SPI, UART/USART |
| Number of i (O) | 28 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 32-UFQFN Exposed Pad |
| Data converters | A/D 10x12b |
| Program memory size | 16KB (16K x 8) |
The 512-byte EEPROM space holds calibration constants and configuration parameters without wearing the Flash.
Housed in a 32-UFQFN exposed-pad package (5x5 mm body, supplier package 32-UFQFPN), this part demands a thermal-via stitch under the paddle if the application draws continuous current near the package limit.
The STM32L011K4U3 has 16 KB of Flash program memory (organized as 16K x 8).
Within the STM32L0 series, density variants such as the STM32L021K4 (with slightly more Flash and a different peripheral set) share the same 32-UFQFN footprint, but pin compatibility depends on the specific peripheral mix. The STM32L011K4U3 sits at the entry-density tier; moving up the STM32L0 family means checking the package and I/O count match before substituting.