STM32F030X4 datasheet(60/88 Pages) STMICROELECTRONICS

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Electrical characteristics

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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

I

VDD (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

I

VSS (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

2.7 V < VDD < 3.6 V

-0.4

VOH

(2)

Output high level voltage for an I/O pin when 8

pins are sourced at the same time

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

2.7 V < VDD < 3.6 V

-1.3

VOH

(2)(3)

Output high level voltage for an I/O pin when 5

pins are sourced at the same time

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

2.4 V < VDD < 2.7 V

-0.4

VOH

(2)(3)

Output high level voltage for an I/O pin when 8

pins are sourced at the same time

VDD–0.4

VOLFM+

(1)

Output low level voltage for an FTf I/O pin in

FM+ mode

IIO = +20 mA

0.4

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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