For my project I picked the STM32L031F6 micro as it looks like a good fit with 32kB flash and 8 kB SRAM in TSSOP20 package.
However, according to ES0304: STM32L031x4/6 device limitations errata sheet:
2.1.5 SRAM size limited to 4 Kbytes
SRAM is available only from address 0x2000 0000 to 0x2000 0FFF.
Does this mean that basically the STM32L031F6 micro (and the whole STM32L031x4/6 family with revisions A, B, X and Y for that matter) supports only 4kB of SRAM instead of 8kB, i.e. 50% less and this fact wasn't reflected in the main description?
If yes then I think it's a very important limitation and SRAM size should be updated for the STM32L031F6 micro in its datasheets as all possible revisions of this micro (A, B, X and Y) are affected.