STM32F769AI datasheet(162/255 Pages) STMICROELECTRONICS

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Electrical characteristics

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DocID029041 Rev 4

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 65: I/O static characteristics are

derived from tests performed under the conditions summarized in Table 17. All I/Os are

CMOS and TTL compliant.

Table 64. I/O current injection susceptibility(1)

Symbol

Description

Functional susceptibility

Unit

Negative

injection

Positive

injection

IINJ

Injected current on BOOT0, DSI_D0P, DSI_D0N, DSI_D1P,

DSI_D1N, DSI_CKP, DSI_CKN pin

Injected current on NRST pin

0NA

Injected current on PC0, PC2, PH1_OSCOUT pins

0NA

Injected current on any other FT pin

5NA

Injected current on any other pins

5+5

1. NA = not applicable

Table 65. 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)

BOOT 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)

BOOT 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

VHYS

FT, TTa and NRST I/O input

hysteresis

1.7 V≤ VDD≤ 3.6 V

10%VDD(3)

BOOT I/O input hysteresis

1.75 V≤ VDD ≤3.6 V,–

40 °C≤ TA ≤ 105 °C

0.1

1.7 V≤ VDD ≤ 3.6 V,

0 °C≤ TA ≤ 105 °C

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