STM32F050C4 datasheet(37/97 Pages) STMICROELECTRONICS

37 / 97 page

STM32F050xx

Electrical characteristics

Doc ID 023683 Rev 1

37/97

6.2

Absolute maximum ratings

Stresses above the absolute maximum ratings listed in Table 12: Voltage characteristics,

Table 13: Current characteristics, and Table 14: 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 12.

Voltage 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.

Symbol

Ratings

Min

Max

Unit

VDD–VDDA

Allowed voltage difference for VDD >VDDA

-0.4

VIN

(2)

VIN maximum must always be respected. Refer to Table 13: Current characteristics for the maximum

allowed injected current values.

Input voltage on FT and FTf pins

VSS −0.3

VDD + 4.0

Input voltage on TTa pins

VSS −0.3

4.0

Input voltage on any other pin

VSS −0.3

4.0

ΔVDDx|

Variations between different VDD power pins

|VSSX −VSS|

Variations between all the different ground

pins

-50

VESD(HBM)

Electrostatic discharge voltage (human

body model)

see Section 6.3.11: Electrical

sensitivity characteristics

Table 13.

Current characteristics

Symbol

Ratings

Max.

Unit

IVDD(Σ)

Total current into sum of all VDD_x and VDDSDx power lines

(source)(1)

120

IVSS(Σ)

Total current out of sum of all VSS_x and VSSSD ground lines

(sink)(1)

-120

IVDD(PIN)

Maximum current into each VDD_x or VDDSDx power pin (source)(1)

100

IVSS(PIN)

Maximum current out of each VSS_x or VSSSD ground pin (sink)(1)

-100

IIO(PIN)

Output current sunk by any I/O and control pin

Output current source by any I/O and control pin

- 25

ΣIIO(PIN)

Total output current sunk by sum of all IOs and control pins(2)

Total output current sourced by sum of all IOs and control pins(2)

-80

IINJ(PIN)

Injected current on FT, FTf and B pins(3)

-5/+0

Injected current on TC and RST pin(4)

± 5

Injected current on TTa pins(5)

± 5

ΣIINJ(PIN)

Total injected current (sum of all I/O and control pins)(6)

± 25

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

permitted range.

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