EFM32WG990 Datasheet, PDF (26/80 Pages) List of Unclassifed Manufacturers – The EFM32 MCUs are the world’s most energy friendly microcontrollers.

Preliminary
...the world's most energy friendly microcontrollers
Figure 3.18. Typical Low-Level Output Current, 3V Supply Voltage
0.5
10
0.4
8
0.3
6
0.2
4
0.1
0.0
0.0
-4 0 ° C
25°C
85°C
0.5
1.0
1.5
2.0
2.5
3.0
Low-Level Out put Volt age [ V]
GPIO_Px_CTRL DRIVEMODE = LOWEST
2
-4 0 ° C
25°C
85°C
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Low-Level Out put Volt age [ V]
GPIO_Px_CTRL DRIVEMODE = LOW
40
35
30
25
20
15
10
5
-4 0 ° C
25°C
85°C
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Low-Level Out put Volt age [ V]
GPIO_Px_CTRL DRIVEMODE = STANDARD
50
40
30
20
10
0
0.0
-4 0 ° C
25°C
85°C
0.5
1.0
1.5
2.0
2.5
3.0
Low-Level Out put Volt age [ V]
GPIO_Px_CTRL DRIVEMODE = HIGH
2013-05-06 - EFM32WG990FXX - d0203_Rev1.10
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