DocID026267 Rev 1

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TN1176

Consumption comparison

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Consumption comparison

The STM32L15xx6/8/B-A or STM32L100x6/8/B-A devices feature less dynamic

consumption than the STM32L15xx6/8/B or STM32L100x6/8/B devices respectively, due to

the advanced manufacturing technology. The power consumptions in low-power modes are

on similar levels.

Table 6 shows the differences in power consumption between the devices in the various

operating modes.

Table 6. Consumption differences summary

STM32L15xx6/8/B

STM32L100x6/8/B

STM32L15xx6/8/B-A

STM32L100x6/8/B-A

Full speed from flash (32 MHz in HSI)

294 μA/MHz

257 μA/MHz

MSI clock from flash (4.2 MHz)

214 μA/MHz

185 μA/MHz

Low-power Run from RAM @ 32 kHz

9.0 μA

10.9 μA

Low-power sleep from RAM @ 32 kHz

4.4 μA

5.5 μA

Stop mode

500 nA

434 nA

Stop mode with RTC on LSI

1.40 μA

1.38 μA

Standby mode

300 nA

277 nA

Standby mode with RTC on LSI

1.30 μA

1.11 μA