STM32L051C8 datasheet(49/127 Pages) STMICROELECTRONICS

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STM32L051x6 STM32L051x8

Electrical characteristics

100

6.2

Absolute maximum ratings

Stresses above the absolute maximum ratings listed in Table 20: Voltage characteristics,

Table 21: Current characteristics, and Table 22: 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 20. Voltage characteristics

Symbol

Definition

Min

Max

Unit

VDD–VSS

External main supply voltage



(including VDDA, VDDIO2, VDD)(1)

1. All main power (VDD,VDDIO2, 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)

VIN maximum must always be respected. Refer to Table 21 for maximum allowed injected current values.

Input voltage on FT and FTf pins

VSS  0.3

VDD+4.0

Input voltage on TC pins

VSS  0.3

4.0

Input voltage on BOOT0

VSS

VDD 4.0

Input voltage on any other pin

VSS 0.3

4.0

VDD|

Variations between different VDDx power pins

|VDDA-VDDx|

Variations between any VDDx and VDDA power

pins(3)

3. It is recommended to power VDD and VDDA from the same source. A maximum difference of 300 mV

between VDD and VDDA can be tolerated during power-up and device operation. VDDIO2 is independent

from VDD and VDDA: its value does not need to respect this rule.

300

VSS|

Variations between all different ground pins

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

-0.4

VESD(HBM)

Electrostatic discharge voltage



(human body model)

see Section 6.3.11

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