STM32F091VC datasheet(79/127 Pages) STMICROELECTRONICS

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STM32F091xB STM32F091xC

Electrical characteristics

6.3.14

I/O port characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 53 are derived from tests

performed under the conditions summarized in Table 24: General operating conditions. All

I/Os are designed as CMOS- and TTL-compliant.

Table 52. I/O current injection susceptibility

Symbol

Description

Functional

susceptibility

Unit

Negative

injection

Positive

injection

IINJ

Injected current on BOOT0

-0

Injected current on PF1 pin (FTf pin)

-0

Injected current on PC0 pin (TTA pin)

-0

Injected current on PA4, PA5 pins with induced leakage

current on adjacent pins less than -20 μA

-5

Injected current on other FT and FTf pins

-5

Injected current on all other TC, TTa and RST pins

-5

Table 53. I/O static characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL

Low level input

voltage

TC and TTa I/O

0.3 VDDIOx+0.07(1)

FT and FTf I/O

0.475 VDDIOx–0.2(1)

All I/Os

0.3 VDDIOx

VIH

High level input

voltage

TC and TTa I/O

0.445 VDDIOx+0.398(1)

FT and FTf I/O

0.5 VDDIOx+0.2(1)

All I/Os

0.7 VDDIOx

Vhys

Schmitt trigger

hysteresis

TC and TTa I/O

200(1)

FT and FTf I/O

100(1)

Ilkg

Input leakage

current(2)

TC, FT and FTf I/O

TTa in digital mode

VSS ≤ VIN ≤ VDDIOx

± 0.1

µA

TTa in digital mode

VDDIOx ≤ VIN ≤ VDDA

TTa in analog mode

VSS ≤ VIN ≤ VDDA

± 0.2

FT and FTf I/O

VDDIOx ≤ VIN ≤ 5 V

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