STM32L082KB datasheet(86/132 Pages) STMICROELECTRONICS

86 / 132 page

Electrical characteristics

STM32L082xx

86/132

DS10688 Rev 7

Figure 21. VIH/VIL versus VDD (CMOS I/Os)

Figure 22. VIH/VIL versus VDD (TTL I/Os)

Output driving current

The GPIOs (general purpose input/outputs) can sink or source up to ±8 mA, and sink or

source up to ±15 mA with the non-standard VOL/VOH specifications given in Table 58.

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(Σ) (see Table 21).

•

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(Σ) (see Table 21).

5. Pull-up and pull-down resistors are designed with a true resistance in series with a switchable PMOS/NMOS. This

MOS/NMOS contribution to the series resistance is minimum (~10% order).

MSv34789V1

VDD (V)

VIHmin 2.0

VILmax 0.7

VIL/VIH (V)

1.3

2.0

3.6

CMOS

standard

requirements

VIHmin

= 0.7V

VILmax

= 0.3V

0.6

2.7

3.0

3.3

CMOS standard requirements VILmax = 0.3VDD

VIHmin

= 0.39V

+0.59

(all pins

except

BOOT0,

PC15,

PH0/1

VIHmin

= 0.45V

+0.38

for

BOOT0,

PC15,

PH0/1

Input range not

guaranteed

MSv34790V1

VDD (V)

VIHmin 2.0

VILmax 0.8

VIL/VIH (V)

1.3

2.0

3.6

TTL standard requirements VIHmin = 2 V

VILmax

= 0.3V

0.7

2.7

3.0

3.3

TTL standard requirements VILmax = 0.8 V

Input range not

guaranteed

VIHmin

= 0.39V

+0.59

(all pins

except

BOOT0,

PC15,

PH0/1

VIHmin

= 0.45V

+0.38

for

BOOT0,

PC15,

PH0/1

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