STM32L15XRC datasheet(55/136 Pages) STMICROELECTRONICS

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STM32L151xC STM32L152xC

Electrical characteristics

109

6.2

Absolute maximum ratings

Stresses above the absolute maximum ratings listed in Table 11: Voltage characteristics,

Table 12: Current characteristics, and Table 13: 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 11. Voltage characteristics

Symbol

Ratings

Min

Max

Unit

VDD–VSS

External main supply voltage

(including VDDA and VDD)(1)

–0.3

4.0

VIN(2)

Input voltage on five-volt tolerant pin

VSS −0.3

VDD+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 different ground pins(3)

-50

VREF+ –VDDA

Allowed voltage difference for VREF+ > VDDA

-0.4

VESD(HBM)

Electrostatic discharge voltage

(human body model)

see Section 6.3.11

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

permitted range.

2. VIN maximum must always be respected. Refer to Table 12 for maximum allowed injected current values.

3. Include VREF- pin.

Table 12. Current characteristics

Symbol

Ratings

Max.

Unit

IVDD(Σ)

Total current into sum of all VDD_x power lines (source)(1)

100

IVSS(Σ)(2)

Total current out of sum of all VSS_x ground lines (sink)(1)

100

IVDD(PIN)

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

IVSS(PIN)

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

-70

IIO

Output current sunk by any I/O and control pin

Output current sourced 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)

-60

IINJ(PIN) (3)

Injected current on five-volt tolerant I/O(4), RST and B pins

-5/+0

Injected current on any other pin (5)

± 5

ΣIINJ(PIN)

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

± 25

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

permitted range.

2. This current consumption must be correctly distributed over all I/Os and control pins. The total output current must not be

sunk/sourced between two consecutive power supply pins referring to high pin count LQFP packages.

3. Negative injection disturbs the analog performance of the device. See note in Section 6.3.17.

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