Electrical characteristics
Table 7.
Symbol
I
VDD
I
VSS
I
IO
STM32F103x8, STM32F103xB
Current characteristics
Ratings
Total current into V
DD
/V
DDA
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
mA
±5
±5
±5
± 25
Unit
I
INJ(PIN) (2)(3)
I
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 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.
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
I
INJ(PIN)
is the absolute sum of the
positive and negative injected currents (instantaneous values). These results are based on
characterization with
I
INJ(PIN)
maximum current injection on four I/O port pins of the device.
Table 8.
Thermal characteristics
Ratings
Storage temperature range
Maximum junction temperature
Value
–65 to +150
150
Unit
°C
°C
Symbol
T
STG
T
J
5.3
5.3.1
Operating conditions
General operating conditions
Table 9.
Symbol
f
HCLK
f
PCLK1
f
PCLK2
V
DD
General operating conditions
Parameter
Internal AHB clock frequency
Internal APB1 clock frequency
Internal APB2 clock frequency
Standard operating voltage
Analog operating voltage
(ADC not used)
Analog operating voltage
(ADC used)
Backup operating voltage
Conditions
Min
0
0
0
2
2
Must be the same potential
as V
DD(2)
2.4
1.8
Max
72
36
72
3.6
3.6
V
3.6
3.6
V
V
MHz
Unit
V
DDA(1)
V
BAT
36/96
Doc ID 13587 Rev 12
STMICROELECTRONICS [ STMICROELECTRONICS ]
