STMicroelectronics STM32F042C4, Руководство пользователя

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STM32F042xx Electrical characteristics
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6.3 Operating conditions
6.3.1 General operating conditions
Table 21. General operating conditions
Symbol Parameter Conditions Min Max Unit
f
HCLK
Internal AHB clock frequency 0 48
MHz
f
PCLK
Internal APB clock frequency 0 48
V
DD
Standard operating voltage 2.0 3.6 V
V
DDIO2
I/O supply voltage
Must not be supplied if V
DD
is not present
1.65 3.6 V
V
DDA
Analog operating voltage
(ADC not used)
Must have a potential equal
to or higher than V
DD
V
DD
3.6
V
Analog operating voltage
(ADC used)
2.4 3.6
V
BAT
Backup operating voltage 1.65 3.6 V
V
IN
I/O input voltage
TC and RST I/O -0.3 V
DDIOx
+0.3
V TTa I/O -0.3 V
DDA
+0.3
FT and FTf I/O -0.3 5.5
(1)
P
D
Power dissipation at T
A
= 85 °C
for suffix 6 or T
A
= 105 °C for
suffix 7
(2)
LQFP48 - 364
mW
UFQFPN48 - 606
WLCSP36 - 313
LQFP32 - 351
UFQFPN32 - 526
UFQFPN28 - 170
TSSOP20 - 263
T
A
Ambient temperature for the
suffix 6 version
Maximum power dissipation –40 85
°C
Low power dissipation
(3)
–40 105
Ambient temperature for the
suffix 7 version
Maximum power dissipation –40 105
°C
Low power dissipation
(3)
–40 125
T
J
Junction temperature range
Suffix 6 version –40 105
°C
Suffix 7 version –40 125
1. To sustain a voltage higher than V
DDIOx
+0.3 V, the internal pull-up/pull-down resistors must be disabled.
2. If T
A
is lower, higher P
D
values are allowed as long as T
J
does not exceed T
Jmax
. See Section 7.2: Thermal characteristics .
3. In low power dissipation state, T
A
can be extended to this range as long as T
J
does not exceed T
Jmax
(see Section 7.2:
Thermal characteristics ).