STM32F479AI datasheet(130/208 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F479xx

130/208

DocID028010 Rev 2

Note:

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

potentially inject negative currents.

5.3.20

I/O port characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 58 are derived from tests

performed under the conditions summarized in Table 17. All I/Os are CMOS and TTL

compliant.

Table 57. I/O current injection susceptibility(1)

1. NA = not applicable

Symbol

Description

Functional susceptibility

Unit

Negative

injection

Positive

injection

IINJ

Injected current on BOOT0 and NRST pins

− 0NA

Injected current on DSIHOST_D0P,

DSIHOST_D0N, DSIHOST_D1P, DSIHOST_D0N,

DSIHOST_CKP, DSIHOST_CKN pins

− 00

Injected current on PA0 and PC0 pins

− 0NA

Injected current on any other FT pin

− 5NA

Injected current on any other pin

− 5+ 5

Table 58. I/O static characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL

FT, TTa and NRST I/O input low

level voltage

1.7 V≤VDD≤3.6 V

0.35VDD−0.04(1)

0.3VDD(2)

BOOT0 I/O input low level

voltage

1.75 V≤VDD ≤3.6 V,

–40 °C≤TA ≤105 °C

0.1VDD+0.1(1)

1.7 V≤VDD ≤3.6 V,

0°C≤TA ≤105 °C

VIH

FT, TTa and NRST I/O input

high level voltage(5)

1.7 V≤VDD≤3.6 V

0.45VDD+0.3(1)

0.7VDD(2)

BOOT0 I/O input high level

voltage

1.75 V≤VDD ≤3.6 V,

–40 °C≤TA ≤105 °C

0.17VDD+0.7(1)

1.7 V≤VDD ≤3.6 V,

0°C≤TA ≤105 °C

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