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STM32F042x4 STM32F042x6
6.3
Operating conditions
6.3.1
General operating conditions
Symbol
f
Internal AHB clock frequency
HCLK
f
Internal APB clock frequency
PCLK
V
Standard operating voltage
DD
V
I/O supply voltage
DDIO2
Analog operating voltage
(ADC not used)
V
DDA
Analog operating voltage
(ADC used)
V
Backup operating voltage
BAT
V
I/O input voltage
IN
Power dissipation at T
P
for suffix 6 or T
D
suffix 7
Ambient temperature for the
suffix 6 version
T
A
Ambient temperature for the
suffix 7 version
T
Junction temperature range
J
1. For operation with a voltage higher than V
2. If T
is lower, higher P
A
D
3. In low power dissipation state, T
Thermal characteristicsSection 7.8: Thermal
6.3.2
Operating conditions at power-up / power-down
The parameters given in
temperature condition summarized in
Table 21. General operating conditions
Parameter
= 85 °C
A
= 105 °C for
A
(2)
+ 0.3 V, the internal pull-up resistor must be disabled.
DDIOx
values are allowed as long as T
can be extended to this range as long as T
A
characteristics).
Table 22
DocID025832 Rev 5
Conditions
-
-
-
Must not be supplied if V
is not present
Must have a potential equal
to or higher than V
DD
-
TC and RST I/O
TTa I/O
FT and FTf I/O
LQFP48
UFQFPN48
WLCSP36
LQFP32
UFQFPN32
UFQFPN28
TSSOP20
Maximum power dissipation
(3)
Low power dissipation
Maximum power dissipation
(3)
Low power dissipation
Suffix 6 version
Suffix 7 version
does not exceed T
. See
J
Jmax
does not exceed T
J
are derived from tests performed under the ambient
Table
21.
Electrical characteristics
Min
Max
0
48
0
48
2.0
3.6
DD
1.65
3.6
V
3.6
DD
2.4
3.6
1.65
3.6
-0.3
V
+0.3
DDIOx
-0.3
V
+0.3
DDA
(1)
-0.3
5.5
-
364
-
606
-
313
-
351
-
526
-
170
-
263
–40
85
–40
105
–40
105
–40
125
–40
105
–40
125
Section 7.8: Thermal
characteristics.
(see
Section 7.8:
Jmax
Unit
MHz
V
V
V
V
(1)
V
mW
°C
°C
°C
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