STM32F328C8 datasheet(46/109 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F328C8

46/109

DocID026351 Rev 3

6.2

Absolute maximum ratings

Stresses above the absolute maximum ratings listed in Table 15: Voltage characteristics,

Table 16: Current characteristics, and Table 17: Thermal characteristics may cause

permanent damage to the device. These are stress ratings only and functional operation of

the device at these conditions is not implied. Exposure to maximum rating conditions for

extended periods may affect device reliability.

Table 15. Voltage characteristics(1)

Symbol

Ratings

Min.

Max.

Unit

VDD–VSS

External main supply voltage (including VDDA, VBAT

and VDD)

-0.3

1.95

VDDA–VSS

External analog supply voltage

-0.3

4.0

VDD–VDDA

Allowed voltage difference for VDD > VDDA

-0.4

VIN(2)

Input voltage on FT and FTf pins

VSS −0.3

VDD + 4.0

Input voltage on TTa

VSS −0.3

4.0

Input voltage on POR pin

VSS −0.3

VDDA+ 4.0

Input voltage on any other pin

VSS −0.3

4.0

Input voltage on Boot0 pin

ΔVDDx|

Variations between different VDD power pins

|VSSX −VSS|

Variations between all the different ground pins

VESD(HBM)

Electrostatic discharge voltage (human body

model)

see Section 6.3.11: Electrical

sensitivity characteristics

1. All main power (VDD, VDDA) and ground (VSS, VSSA) pins must always be connected to the external power supply, in the

permitted range. The following relationship must be respected between VDDA and VDD:

VDDA must power on before or at the same time as VDD in the power up sequence.

VDDA must be greater than or equal to VDD.

2. VIN maximum must always be respected. Refer to Table 16: Current characteristics for the maximum allowed injected

current values.

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