Electrical characteristics
STM32F105xx, STM32F107xx
5.2
Absolute maximum ratings
Stresses above the absolute maximum ratings listed in Table 6: Voltage characteristics,
Table 7: Current characteristics, and Table 8: 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 6.
Symbol
Voltage characteristics
Ratings
External main supply voltage (including VDDA
Min
Max
Unit
VDD–VSS
–0.3
4.0
(1)
and VDD
)
V
Input voltage on five volt tolerant pin
Input voltage on any other pin
VSS − 0.3
VSS − 0.3
VDD + 4.0
(2)
VIN
4.0
50
50
|ΔVDDx
|
Variations between different VDD power pins
Variations between all the different ground pins
mV
|VSSX − VSS
|
see Section 5.3.11:
Absolute maximum ratings
(electrical sensitivity)
Electrostatic discharge voltage (human body
model)
VESD(HBM)
1. All main power (VDD, VDDA) and ground (VSS, VSSA) pins must always be connected to the external power
supply, in the permitted range.
2. VIN maximum must always be respected. Refer to Table 7: Current characteristics for the maximum
allowed injected current values.
Table 7.
Symbol
IVDD
IVSS
Current characteristics
Ratings
Max.
Unit
Total current into VDD/VDDA power lines (source)(1)
Total current out of VSS 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 five volt tolerant pins(3)
Injected current on any other pin(4)
150
150
25
IIO
− 25
-5/+0
5
mA
(2)
IINJ(PIN)
ΣIINJ(PIN)
Total injected current (sum of all I/O and control pins)(5)
25
1. All main power (VDD, VDDA) and ground (VSS, VSSA) pins must always be connected to the external power
supply, in the permitted range.
2. Negative injection disturbs the analog performance of the device. See Note: on page 75.
3. Positive 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 6: Voltage characteristics for the maximum allowed input voltage
values.
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 6: Voltage characteristics for the maximum allowed input voltage
values.
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).
34/104
Doc ID 15274 Rev 6
STMICROELECTRONICS [ ST ]
