Datasheet

STM32F051x Electrical characteristics
Doc ID 022265 Rev 3 43/105
6.3 Operating conditions
6.3.1 General operating conditions
Table 20. 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 3.6 V
V
DDA
(1)
1. When the ADC is used, refer to Table 54: ADC characteristics.
Analog operating voltage
(ADC and DAC not used)
Must have a potential equal
to or higher than V
DD
23.6
V
Analog operating voltage
(ADC and DAC used)
2.4 3.6
V
BAT
Backup operating voltage 1.65 3.6 V
P
D
Power dissipation at T
A
=
85 °C for suffix 6 or T
A
=
105 °C for suffix 7
(2)
2. If T
A
is lower, higher P
D
values are allowed as long as T
J
does not exceed T
Jmax
(see Table 19: Thermal
characteristics).
LQFP64 - 444
mW
LQFP48 - 364
LQFP32 - 357
UFQFPN32 - 526
T
A
Ambient temperature for 6
suffix version
Maximum power dissipation –40 85
°C
Low power dissipation
(3)
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
Table 19: Thermal characteristics).
–40 105
Ambient temperature for 7
suffix version
Maximum power dissipation –40 105
°C
Low power dissipation
(3)
–40 125
T
J Junction temperature range
6 suffix version –40 105
°C
7 suffix version –40 125