STM32F303RE datasheet(118/173 Pages) STMICROELECTRONICS

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Electrical characteristics

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DocID026415 Rev 5

Note:

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

potentially inject negative currents.

6.3.15

I/O port characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 66 are derived from tests

performed under the conditions summarized in Table 19. All I/Os are CMOS and TTL

compliant.

IINJ

Injected current on PB0, PB1, PE7, PE8, PE9, PE10,

PE11, PE12, PE13, PE14, PE15, PB12, PB13, PB14,

P15, PD8, PD9, PD10, PD11, PD12, PD13, PD14 with

induced leakage current on other pins from this group

less than -50 µA or more than +400 µA

-5

Injected current on any other FT and FTf pins

-5

Injected current on any other pins

-5

Table 65. I/O current injection susceptibility (continued)

Symbol

Description

Functional susceptibility

Unit

Negative

injection

Positive

injection

Table 66. I/O static characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL

Low level input

voltage

TC and TTa I/O

0.3 VDD+0.07 (1)

FT and FTf I/O

0.475 VDD-0.2 (1)

BOOT0

0.3 VDD–0.3 (1)

All I/Os except BOOT0

0.3 VDD (2)

VIH

High level input

voltage

TC and TTa I/O

0.445 VDD+0.398 (1)

FT and FTf I/O

0.5 VDD+0.2 (1)

BOOT0

0.2 VDD+0.95 (1)

All I/Os except BOOT0

0.7 VDD (2)

Vhys

Schmitt trigger

hysteresis

TC and TTa I/O

200 (1)

FT and FTf I/O

100 (1)

BOOT0

300 (1)

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