STMicroelectronics STM8L151C6U3, STM8L EnergyLite series 8-bit MCU, 16 MHz core, 32 KB Flash, 2 KB RAM, 1 KB EEPROM, 1.8V-3.6V supply, -40°C to 125°C, 48-UFQFN exposed pad.
| Parameter | Value |
|---|---|
| Series | STM8L EnergyLite |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C ~ 125°C (TA) |
| Speed | 16MHz |
| Package | Tray |
| RAM size | 2K x 8 |
| Core size | 8-Bit |
| EEPROM size | 1K x 8 |
| Peripherals | Brown-out Detect/Reset, DMA, IR, POR, PWM, WDT |
| Connectivity | I²C, IrDA, SPI, UART/USART |
| Number of i (O) | 41 |
| Core processor | STM8 |
| Case | 48-UFQFN Exposed Pad |
| Data converters | A/D 25x12b; D/A 1x12b |
| Program memory size | 32KB (32K x 8) |
The STMicroelectronics STM8L151C6U3 is an 8-bit microcontroller from the STM8L EnergyLite series, built around the STM8 core and clocked at 16 MHz.
The pad also serves as the main electrical ground connection, so the solder paste coverage on that central pad matters for both thermal and electrical integrity.
For a production BOM this removes the single-source obsolescence worry that haunts older 8-bit MCU lines.
The difference is the package. The STM8L151C6U3 comes in a 48-UFQFN exposed-pad package (7x7 mm), while the STM8L151C6T6 uses a 48-LQFP package. The UFQFN saves board area and has a lower profile, but the LQFP is easier to hand-solder and inspect. Both share the same core, memory, and peripheral set.