STM32F051x
Electrical characteristics
6.3
6.3.1
Operating conditions
General operating conditions
Table 20. General operating conditions
Symbol
Parameter
Conditions
Min Max Unit
fHCLK Internal AHB clock frequency
0
48
fPCLK Internal APB clock frequency
0
48
VDD
Standard operating voltage
2
3.6
VDDA(1)
Analog operating voltage
(ADC and DAC not used)
Analog operating voltage
(ADC and DAC used)
2
3.6
Must have a potential equal
to or higher than VDD
2.4 3.6
VBAT Backup operating voltage
Power dissipation at TA =
PD
85 °C for suffix 6 or TA =
105 °C for suffix 7(2)
LQFP64
LQFP48
LQFP32
UFQFPN32
1.65 3.6
-
444
-
364
-
357
-
526
Ambient temperature for 6
Maximum power dissipation –40
85
suffix version
Low power dissipation(3)
–40 105
TA
Ambient temperature for 7
Maximum power dissipation –40 105
suffix version
Low power dissipation(3)
–40 125
6 suffix version
TJ
Junction temperature range
7 suffix version
–40 105
–40 125
MHz
V
V
V
mW
°C
°C
°C
1. When the ADC is used, refer to Table 54: ADC characteristics.
2. If TA is lower, higher PD values are allowed as long as TJ does not exceed TJmax (see Table 19: Thermal
characteristics).
3. In low power dissipation state, TA can be extended to this range as long as TJ does not exceed TJmax (see
Table 19: Thermal characteristics).
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