Datasheet

Electrical characteristics STM32F103xx
30/84
5.2 Absolute maximum ratings
Stresses above the absolute maximum ratings listed in Table 4: Voltage characteristics,
Table 5: Current characteristics, and Table 6: 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 4. Voltage characteristics
Symbol Ratings Min Max Unit
V
DD
–V
SS
External main supply voltage (including V
DDA
and V
DD
)
(1)
1. All main power (V
DD
, 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
Input voltage on five volt tolerant pin
(2)
2. I
INJ(PIN)
must never be exceeded (see Table 5: Current characteristics). 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
.
V
SS
− 0.3 +5.5
Input voltage on any other pin
(2)
V
SS
− 0.3 V
DD
+0.3
|∆V
DDx
| Variations between different power pins 50 50
mV
|V
SSX
− V
SS
| Variations between all the different ground pins 50 50
V
ESD(HBM)
Electrostatic discharge voltage (human body
model)
see Section 5.3.11:
Absolute maximum ratings
(electrical sensitivity)
Table 5. Current characteristics
Symbol Ratings Max. Unit
I
VDD
Total current into V
DD
power lines (source)
(1)
1. All main power (V
DD
, V
DDA
) and ground (V
SS
, V
SSA
) pins must always be connected to the external power
supply, in the permitted range.
150
mA
I
VSS
Total current out of V
SS
ground lines (sink)
(1)
150
I
IO
Output current sunk by any I/O and control pin 25
Output current source by any I/Os and control pin − 25
I
INJ(PIN)
(2)(3)
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 Section 5.3.17: 12-bit ADC
characteristics.
Injected current on NRST pin ± 5
Injected current on HSE OSC_IN and LSE OSC_IN pins ± 5
Injected current on any other pin
(4)
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.
± 5
ΣI
INJ(PIN)
(2)
Total injected current (sum of all I/O and control pins)
(4)
± 25