Consumption comparison

TN1177

10/12

DocID026269 Rev 2

5

Consumption comparison

The STM32L15/6xxC devices feature less dynamic consumption than the STM32L15/6xxC-

A devices, due to the advanced manufacturing technology. The power consumptions in low-

power modes are on similar levels.

Table 4 shows the differences in power consumption between the devices in the various

operating modes.

Table 4. Consumption difference summary

STM32L15/6xxC-A

STM32L15/6xxC

Full speed from flash (32 MHz in HSI)

325 µA/MHz

257 µA/MHz

MSI clock from flash (4.2 MHz)

230 µA/MHz

185 µA/MHz

Low-power Run from RAM @ 32 kHz

12.5 µA

11.0 µA

Low-power sleep from RAM @ 32 kHz

6.1 µA

5.5 µA

Stop mode

476 nA

435 nA

Stop mode with RTC on LSI

1.35 µA

1.40 µA

Standby mode

305 nA

289 nA

Standby mode with RTC on LSI

1.16 µA

1.17 µA