STM32L151X8 datasheet(52/133 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L151x6/8/B STM32L152x6/8/B

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DocID17659 Rev 12

6.2

Absolute maximum ratings

Stresses above the absolute maximum ratings listed in Table 10: Voltage characteristics,

Table 11: Current characteristics, and Table 12: 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 10. Voltage characteristics

Symbol

Ratings

Min

Max

Unit

VDD–VSS

External main supply voltage

(including VDDA and VDD)(1)

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

supply, in the permitted range.

–0.3

4.0

VIN(2)

2. VIN maximum must always be respected. Refer to Table 11 for maximum allowed injected current values.

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)

3. Include VREF- pin.

-50

VREF+ −VDDA Allowed voltage difference for VREF+ > VDDA

-0.4

VESD(HBM)

Electrostatic discharge voltage

(human body model)

see Section 6.3.11

Table 11. Current characteristics

Symbol

Ratings

Max.

Unit

IVDDΣ

Total current into VDD/VDDA power lines (source)(1)

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

supply, in the permitted range.

IVSSΣ

Total current out of VSS ground lines (sink)(1)

IIO

Output current sunk by any I/O and control pin

Output current sourced by any I/O and control pin

- 25

IINJ(PIN) (2)

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

Injected current on five-volt tolerant I/O(3)

3. Positive current injection is not possible on these I/Os. A negative injection is induced by VIN<VSS. IINJ(PIN)

must never be exceeded. Refer to Table 10 for maximum allowed input voltage values.

-5/+0

Injected current on any other pin (4)

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

must never be exceeded. Refer to Table 10: Voltage characteristics for the maximum allowed input voltage

values.

± 5

ΣIINJ(PIN)

Total injected current (sum of all I/O and control pins)(5)

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

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