DocID027161 Rev 1

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AN4617

Peripheral migration

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User has to consider differences at input and output mapping. Additional differences are

summarized in Table 15.

2.15

PWR interface

The PWR controller of STM32F0 series has several differences vs. L0 series, summarized

in the Table 16. Note that the STM32F0x8 subfamily doesn’t feature voltage regulator to

supply internal 1.8 V to the digital power domain, a stable voltage has to be delivered by the

application.

Table 15. COMP differences between STM32F0 and STM32L0 series

COMP feature

STM32F0 series

STM32L0 series

Number

Up to 2x rail to rail

1x rail to rail + 1x ultra-low power

Outputs

PWM emergency shut down (BKIN)

Cycle by cycle current control loop

(OCREF_CLR events)

Input capture of timers

Input capture & ETR of timers

Programmable

hysteresis

Yes

No

Programmable speed /

power mode

4 levels

2 levels