STM32F334C6U6TR datasheet(76/125 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F334x4 STM32F334x6 STM32F334x8

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DS9994 Rev 9

The failure is indicated by an out of range parameter: ADC error above a certain limit (higher

than 5 LSB TUE), out of conventional limits of induced leakage current on adjacent pins (out

of –5 µA/+0 µA range), or other functional failure (for example reset occurrence or oscillator

frequency deviation). The test results are given in the table below.

Note:

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

potentially inject negative currents.

6.3.14

I/O port characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 50 are derived from tests

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

compliant.

Table 49. I/O current injection susceptibility

Symbol

Description

Functional susceptibility

Unit

Negative

injection

Positive

injection

IINJ

Injected current on BOOT0

– 0

NA (Injection is not

possible)

Injected current on PC0, PC1, PC2, PC3 (TTa pins) and PF1

pin (FT pin)

-0

Injected current on PA0, PA1, PA2, PA3, PA4, PA5, PA6,

PA7, PC4, PC5, PB0, PB1, PB2, PB12, PB13, PB14, PB15

with induced leakage current on other pins from this group

less than -100 µA or more than +900 µA

-5

Injected current on PB11, other TT, FT, and FTf pins

– 5

Injection is not

possible

Injected current on all other TC, TTa and RESET pins

– 5

Table 50. I/O static characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

VIL

Low-level input

voltage

TT, 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

TTa and TT 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)

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