Memory and peripheral fit for a production BOM
With 192 KB Flash and 20 KB RAM, this part sits in the mid-range of the STM32L0 family — enough headroom for a FreeRTOS-based application with USB CDC or a Modbus stack, but not the 512 KB / 80 KB tier you'd pick for a GUI-heavy design. The 6 KB EEPROM is a genuine hardware block, not emulated Flash, so you get 100 kcycle endurance per byte without wear-leveling code.
The 100-LQFP (14x14 mm) is a hand-solderable QFP with 0.5 mm pitch — no BGA rework station needed, but a decent hot-air station and a fine-tip iron are the right tools.