Datasheet

Electrical characteristics STM32L452xx
110/210 DocID029968 Rev 3
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 0.83 0.84 0.88 0.95 1.10
mA
72 MHz 0.75 0.77 0.81 0.88 1.01 64 MHz 0.68 0.68 0.74 0.81 0.93 48 MHz 0.50 0.50 0.56 0.63 0.77 32 MHz 0.35 0.36 0.41 0.47 0.61 24 MHz 0.28 0.29 0.33 0.40 0.54 16 MHz 0.20 0.21 0.25 0.32 0.45
8 MHz 0.13 0.14 0.18 0.25 0.40 4 MHz 0.09 0.10 0.14 0.22 0.36 2 MHz 0.07 0.08 0.13 0.20 0.34 1 MHz 0.06 0.07 0.11 0.19 0.33
100 kHz 0.05 0.06 0.11 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 76.5 105 220 410 740 110 175 350 600 1250
µA
1 MHz 54.0 81.0 195 385 715 81.5 155 325 570 1200
400 kHz 28.0 64.5 175 370 695 60.5 130 305 555 1200 100 kHz 21.5 55.0 170 360 690 58.5 120 300 550 1200
1. Guaranteed by characterization results, unless otherwise specified.
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