Electrical characteristics
STM32F103xx
5.2
Absolute maximum ratings
Stresses above the absolute maximum ratings listed in
and
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 4.
Symbol
V
DD
–V
SS
V
IN
|∆V
DDx
|
|V
SSX
−
V
SS
|
V
ESD(HBM)
Voltage characteristics
Ratings
External 3.3 V supply voltage (including V
DDA
and V
DD
)
(1)
Input voltage on five volt tolerant pin
(2)
Input voltage on any other pin
(2)
Variations between different power pins
Variations between all the different ground pins
Electrostatic discharge voltage (human body
model)
Min
–0.3
V
SS
−
0.3
V
SS
−
0.3
50
50
Max
4.0
+5.5
V
DD
+0.3
50
mV
50
see
V
Unit
1. All 3.3 V power (V
DD
, V
DDA
) and ground (V
SS
, V
SSA
) pins must always be connected to the external 3.3 V
supply.
2. I
INJ(PIN)
must never be exceeded (see
This is implicitly insured if V
IN
maximum is respected. If V
IN
maximum cannot be respected, the injection current must be limited
externally to the I
INJ(PIN)
value. A positive injection is induced by V
IN
>V
DD
while a negative injection is
induced by V
IN
< V
SS
.
Table 5.
Symbol
I
VDD
I
VSS
I
IO
Current characteristics
Ratings
Total current into V
DD
power lines (source)
(1)
Total current out of V
SS
ground lines (sink)
(1)
Output current sunk by any I/O and control pin
Output current source by any I/Os and control pin
Injected current on NRST pin
Max.
150
150
25
−
25
±5
±5
±5
± 25
mA
Unit
I
INJ(PIN) (2)(3)
ΣI
INJ(PIN)(2)
Injected current on HSE OSC_IN and LSE OSC_IN pins
Injected current on any other pin
(4)
Total injected current (sum of all I/O and control pins)
(4)
1. All 3.3 V power (V
DD
, V
DDA
) and ground (V
SS
, V
SSA
) pins must always be connected to the external 3.3 V
supply.
2. I
INJ(PIN)
must never be exceeded. This is implicitly insured if V
IN
maximum is respected. If V
IN
maximum
cannot be respected, the injection current must be limited externally to the I
INJ(PIN)
value. A positive
injection is induced by V
IN
> V
DD
while a negative injection is induced by V
IN
< V
SS
.
3. Negative injection disturbs the analog performance of the device. See note in
4. When several inputs are submitted to a current injection, the maximum
ΣI
INJ(PIN)
is the absolute sum of the
positive and negative injected currents (instantaneous values). These results are based on
characterization with
ΣI
INJ(PIN)
maximum current injection on four I/O port pins of the device.
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