STM32F412RG datasheet(117/193 Pages) STMICROELECTRONICS

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STM32F412xE/G

Electrical characteristics

161

Note:

It is recommended to add a Schottky diode (pin to ground) to analog pins which may

potentially inject negative currents.

6.3.16

I/O port characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 56 are derived from tests

performed under the conditions summarized in Table 15. All I/Os are CMOS and TTL

compliant.

Table 55. I/O current injection susceptibility(1)

1. NA = not applicable

Symbol

Description

Functional susceptibility

Unit

Negative

injection

Positive

injection

IINJ

Injected current on BOOT0 pin

–0

Injected current on NRST pin

–0

Injected current on PB3, PB4, PB5, PB6,

PB7, PB8, PB9, PC13, PC14, PC15, PH1,

PDR_ON, PC0, PC1,PC2, PC3, PD1,

PD5, PD6, PD7, PE0, PE2, PE3, PE4,

PE5, PE6

–0

Injected current on any other FT pin

–5

Injected current on any other pins

–5

Table 56. I/O static characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL

FT, TC and NRST I/O input low

level voltage

1.7 V≤VDD≤3.6 V

0.3VDD(1)

BOOT0 I/O input low level

voltage

1.75 V≤VDD ≤3.6 V,

-40 °C≤TA ≤105 °C

0.1VDD+0.1(2)

1.7 V≤VDD ≤3.6 V,

0 °C≤TA ≤105 °C

VIH

FT, TC and NRST I/O input high

level voltage(5)

1.7 V≤VDD≤3.6 V

0.7VDD(1)

BOOT0 I/O input high level

voltage

1.75 V≤VDD ≤3.6 V,

-40 °C≤TA ≤105 °C

0.17VDD+0.7(2)

1.7 V≤VDD ≤3.6 V,

0 °C≤TA ≤105 °C

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