Datasheet

Electrical characteristics STM32L052x6 STM32L052x8
54/143 DocID025936 Rev 8
6.2 Absolute maximum ratings
Stresses above the absolute maximum ratings listed in Table 22: Voltage characteristics,
Table 23: Current characteristics, and Table 24: 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. Device mission profile (application conditions)
is compliant with JEDEC JESD47 Qualification Standard. Extended mission profiles are
available on demand.
Table 22. Voltage characteristics
Symbol Definition Min Max Unit
V
DD
–V
SS
External main supply voltage
(including V
DDA
, V
DD_USB
, V
DD
)
(1)
1. All main power (V
DD
,V
DD_USB
, V
DDA
) and ground (V
SS
, V
SSA
) pins must always be connected to the
external power supply, in the permitted range.
–0.3 4.0
V
V
IN
(2)
2. V
IN
maximum must always be respected. Refer to Table 23 for maximum allowed injected current values.
Input voltage on FT and FTf pins V
SS
− 0.3 V
DD
+4.0
Input voltage on TC pins V
SS
− 0.3 4.0
Input voltage on BOOT0 V
SS
V
DD
+ 4.0
Input voltage on any other pin V
SS
− 0.3 4.0
|ΔV
DD
| Variations between different V
DDx
power pins - 50
mV|V
DDA
-V
DDx
|
Variations between any V
DDx
and V
DDA
power
pins
(3)
3. It is recommended to power V
DD
and V
DDA
from the same source. A maximum difference of 300 mV
between V
DD
and V
DDA
can be tolerated during power-up and device operation. V
DD_USB
is independent
from V
DD
and V
DDA
: its value does not need to respect this rule.
- 300
|ΔV
SS
| Variations between all different ground pins - 50
V
REF+
–V
DDA
Allowed voltage difference for V
REF+
> V
DDA
-0.4V
V
ESD(HBM)
Electrostatic discharge voltage
(human body model)
see Section 6.3.11
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