STM32F328C8 datasheet(74/109 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F328C8

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DocID026351 Rev 3

Note:

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

potentially inject negative currents.

6.3.13

I/O port characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 46 are derived from tests

performed under the conditions summarized in Table 18. All I/Os are CMOS and TTL

compliant.

IINJ

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

PA6, PA7, PB0, PB1, 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 all other TC, TTa and RESET pins

– 5

Table 45. I/O current injection susceptibility (continued)

Symbol

Description

Functional susceptibility

Unit

Negative

injection

Positive

injection

Table 46. 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)

Vhys

Schmitt trigger

hysteresis

TT, TC and TTa I/O

200 (1)

FT and FTf I/O

100 (1)

BOOT0

300 (1)

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