Datasheet

STM32L476xx Electrical characteristics
DS10198 Rev 8 137/270
Table 43. Current consumption in Sleep, Flash ON and power supplied by external SMPS
(V
DD12
= 1.10 V)
Symbol Parameter
Conditions
(1)
TYP
Unit
-f
HCLK
25 °C 55 °C 85 °C 105 °C 125 °C
I
DD_ALL
(Sleep) Supply current in sleep mode,
f
HCLK
= f
HSE
up to 48 MHz included, bypass
mode PLL ON above 48 MHz all peripherals disable
80 MHz 1.06 1.08 1.13 1.20 1.34
mA
72 MHz 0.97 0.98 1.02 1.10 1.24 64 MHz 0.87 0.88 0.93 1.00 1.14 48 MHz 0.68 0.69 0.74 0.82 0.96 32 MHz 0.47 0.49 0.53 0.60 0.75 24 MHz 0.36 0.38 0.42 0.49 0.63 16 MHz 0.26 0.27 0.31 0.38 0.52
8 MHz 0.16 0.17 0.22 0.28 0.44 4 MHz 0.10 0.12 0.16 0.23 0.38 2 MHz 0.08 0.09 0.13 0.20 0.35 1 MHz 0.06 0.07 0.12 0.19 0.33
100 kHz 0.05 0.06 0.10 0.18 0.32
1. All values are obtained by calculation based on measurements done without SMPS and using following parameters: SMPS input = 3.3 V, SMPS efficiency = 85%,
V
DD12
= 1.10 V
Table 44. Current consumption in Low-power sleep modes, Flash in power-down
Symbol Parameter
Conditions TYP MAX
(1)
Unit
-
Voltage
scaling
f
HCLK
25 °C 55 °C 85 °C 105 °C 125 °C 25 °C 55 °C 85 °C 105 °C 125 °C
I
DD_ALL
(LPSleep)
Supply current
in low-power
sleep mode
f
HCLK
= f
MSI
all peripherals disable
2 MHz 81 110 217 395 754 115 182 375 750 1500
µA
1 MHz 50 78 185 362 720 80 149 342 717 1456
400 kHz 28 57 163 340 698 60 122 314 689 1429 100 kHz 18 47 155 332 686 50 114 313 688 1438
1. Guaranteed by characterization results, unless otherwise specified.
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