Electrical characteristics
STM32F030x4 STM32F030x6 STM32F030x8
Output driving current
The GPIOs (general purpose input/outputs) can sink or source up to +/-8 mA, and sink or
source up to +/- 20 mA (with a relaxed VOL/VOH).
In the user application, the number of I/O pins which can drive current must be limited to
respect the absolute maximum rating specified in Section 6.2:
The sum of the currents sourced by all the I/Os on VDD, plus the maximum Run
consumption of the MCU sourced on VDD, cannot exceed the absolute maximum rating
IVDD (see Table 16: Current characteristics).
The sum of the currents sunk by all the I/Os on VSS plus the maximum Run
consumption of the MCU sunk on VSS cannot exceed the absolute maximum rating
IVSS (see Table 16: Current characteristics).
Output voltage levels
Unless otherwise specified, the parameters given in the table below are derived from tests
performed under ambient temperature and VDD supply voltage conditions summarized in
Table 18: General operating conditions. All I/Os are CMOS and TTL compliant (FT, TTa or
TC unless otherwise specified).
Table 45. Output voltage characteristics
Symbol
Parameter
Conditions
Min Max Unit
VOL(1)
Output low level voltage for an I/O pin when 8
pins are sunk at the same time
IIO = +8 mA
-
0.4
V
VOH(2)
Output high level voltage for an I/O pin when 8
pins are sourced at the same time
2.7 V < VDD < 3.6 V
VDD–0.4 -
VOL(1)(3)
Output low level voltage for an I/O pin when 5
pins are sunk at the same time
IIO = +20 mA
-
1.3
V
VOH(2)(3)
Output high level voltage for an I/O pin when 5
pins are sourced at the same time
2.7 V < VDD < 3.6 V
VDD–1.3 -
VOL(1)(3)
Output low level voltage for an I/O pin when 8
pins are sunk at the same time
IIO = +6 mA
-
0.4
V
VOH(2)(3)
Output high level voltage for an I/O pin when 8
pins are sourced at the same time
2.4 V < VDD < 2.7 V
VDD–0.4 -
VOLFM+(1)
Output low level voltage for an FTf I/O pin in
FM+ mode
IIO = +20 mA
-
0.4 V
1. The IIO current sunk by the device must always respect the absolute maximum rating specified in Table 16:
Current characteristics and the sum of IIO (I/O ports and control pins) must not exceed IVSS.
2. The IIO current sourced by the device must always respect the absolute maximum rating specified in
Table 16: Current characteristics and the sum of IIO (I/O ports and control pins) must not exceed IVDD.
3. Data based on characterization results. Not tested in production.
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