Peripheral migration

AN4654

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DocID027444 Rev 1

3.12

COMP interface

The STM32L0 series embeds the same comparators COMP1 (ultra low consumption) and

COMP2 (rail-to-rail) used by the STM32L1 series, but are there different input and output

connections.

Figure 2 illustrates the block diagram for comparators of the STM32L0 series.

Figure 2. Comparator 1 and 2 block diagram for the STM32L0 series

Microcontrollers of the STM32L1 series use different comparators interconnections. The

block diagrams for different STM32L1 categories are shown in figures 3, 4, 5 and 6.