STM32F051C8 datasheet(41/104 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F051x

42/105

Doc ID 022265 Rev 3

Table 18.

Current characteristics

Symbol

Ratings

Max.

Unit

IVDD

Total current into VDD power lines (source)

(1)

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

supply, in the permitted range.

100

IVSS

Total current out of VSS ground lines (sink)

(1)

100

IIO

Output current sunk by any I/O and control pin

Output current source by any I/Os and control pin

− 25

IINJ(PIN)

Injected current on FT, FTf and B pins

-5(2)

Positive injection is not possible on these I/Os and does not occur for input voltages lower than the

specified maximum value.

Injected current on TC and RST pin

± 5(3)

A positive injection is induced by VIN>VDD while a negative injection is induced by VIN <VSS. IINJ(PIN) must

never be exceeded. Refer also to Table 17: Voltage characteristics for the maximum allowed input voltage

values.

Injected current on TTa pins

± 5(4)

A positive injection is induced by VIN>VDDA while a negative injection is induced by VIN<VSS. IINJ(PIN) must

never be exceeded. Refer also to Table 17: Voltage characteristics for the maximum allowed input voltage

values. Negative injection disturbs the analog performance of the device. See note 2 below Table 56 on

page 78.

ΣIINJ(PIN)

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

pins)(5)

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).

± 25

Table 19.

Thermal characteristics

Symbol

Ratings

Value

Unit

TSTG

Storage temperature range

–65 to +150

°C

Maximum junction temperature

150

°C

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