The STMicroelectronics STM8L101G3U6 is an 8-bit microcontroller from the STM8L EnergyLite series, built around the STM8 core and clocked at 16 MHz.
Memory and peripherals — sizing the BOM fit
With 8 KB of Flash and 1.5 KB of RAM, this MCU targets code-constrained applications like simple sensor nodes, IR remote controls, or PWM-driven LED drivers. The 2 KB EEPROM provides non-volatile storage for calibration constants or configuration parameters without needing an external serial EEPROM.
Package and power — board-level decisions
Housed in a 28-UFQFPN package measuring 4x4 mm, the STM8L101G3U6 saves board area in compact designs. The 1.65 V minimum supply allows direct battery operation from a single alkaline or Li-ion cell without a boost converter; the 3.6 V maximum covers standard 3.3 V rails with headroom for ripple.