STM32F722IC datasheet(148/229 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F722xx STM32F723xx

148/229

DS11853 Rev 6

Note:

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

potentially inject negative currents.

6.3.20

I/O port characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 61: I/O static characteristics are

derived from tests performed under the conditions summarized in Table 16. All I/Os are

CMOS and TTL compliant.

Table 60. I/O current injection susceptibility

Symbol

Description

Functional susceptibility

Unit

Negative

injection

Positive

injection

IINJ

Injected current on BOOT0, PDR_ON, BYPASS_REG,

OTG_HS_REXT

-0

Injected current on NRST

-0

NA(1)

Injected current on PF9, PF10, PH0_OSCIN, PH1_OSCOUT, PC0,

PC1, PC2, PC3, PB14(2), PB15(2)

-0

NA(1)

Injected current on any other FT or FTf pins

-5

NA(1)

Injected current on any other pins

-5

1. Injection is not possible.

2. PB14 and PB15 in the STM32F723xx devices.

Table 61. 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

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