Looking for advice regarding the use of L0 or the U0 for a new design

[Amelie ACKERMANN]

If we're starting a new design, should we use the L0 or the U0? What would be the benefit of continuing to use the L0?

[Roman LUDIN]

If the STM32L0 still fits your application from a memory perspective, the big benefit in staying would be shorten development time for your next project. If you need more memory (256KB) and if your application is really looking to have a lower active current then I would consider the STM32U0 for your next design. STM32L0 series is still under minimum next 10years longevity commitment.