STR910FAM32 datasheet(59/99 Pages) STMICROELECTRONICS

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STR91xFAx32 STR91xFAx42 STR91xFAx44

Electrical characteristics

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Table 11.

Current characteristics

Symbol

Ratings

Maximum

value

Unit

IVDD_IO

(1)

The user can use GPIOs to source or sink current. In this case, the user must ensure that these absolute

max. values are not exceeded (taking into account the RUN power consumption).

Total current into VDD_IO power lines (source)

(2)

All 3.3 V or 5.0 V power (VDD_IO, VDDA_ADC, VDDA_PLL) and ground (VSS_IO, VSSA_ADC, VDDA_ADC) pins

must always be connected to the external 3.3V or 5.0V supply.

200

IVSS_IO

(1)

Total current out of VSS ground lines (sink)

(2)

200

IIO

Output current sunk by any I/O and control pin

Output current source by any I/Os and control pin

- 25

IINJ(PIN)

(3)

IINJ(PIN) must never be exceeded. This is implicitly insured if VIN maximum is respected. If VIN maximum

cannot be respected, the injection current must be limited externally to the IINJ(PIN) value. A positive

injection is induced by VIN>VDD while a negative injection is induced by VIN<VSS.

Injected current on any pin during overload condition(4)

When several inputs are submitted to a current injection, the maximum

ΣIINJ(PIN) is the absolute sum of the

positive and negative injected currents (instantaneous values). These results are based on

characterization with

ΣIINJ(PIN) maximum current injection on four I/O port pins of the device.

± 5

ΣIINJ(PIN)(3)

Absolute sum of all input currents during overload condition

(4)

± 25

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