STM32F051R4T6TR STMicroelectronics, STM32F051R4T6TR Datasheet - Page 101

• Manufacturer Part Number: STM32F051R4T6TR
• Description: ARM Microcontrollers - MCU ARM Cortex M0 16kB 48 MHz CPU 8kB Flash
• Manufacturer: STMicroelectronics

Specifications of STM32F051R4T6TR

• Rohs: yes

Package characteristics
Note:
102/105
With this given P
(order code suffix 6 or 7).
Suffix 6: T
Suffix 7: T
Example 2: High-temperature application
Using the same rules, it is possible to address applications that run at high ambient
temperatures with a low dissipation, as long as junction temperature T
specified range.
Assuming the following application conditions:
Thus: P
Using the values obtained in
This is above the range of the suffix 6 version parts (–40 < T
In this case, parts must be ordered at least with the temperature range suffix 7 (see
Section 8: Part
use suffix 6 parts.
Refer to figure 38 to select the required temperature range (suffix 6 or 7) according to your
ambient temperature or power requirements.
Figure 39. LQFP64 P
Maximum ambient temperature T
I
level with I
P
P
This gives: P
P
–
T
DDmax
Jmax
INTmax
IOmax
Dmax
Dmax
For LQFP64, 45 °C/W
Amax
Amax
= 100 °C + (45 °C/W × 134 mW) = 100 °C + 6.03 °C = 106.03 °C
= 70 + 64 = 134 mW
= 20 mA, V
= 20 × 8 mA × 0.4 V = 64 mW
= 134 mW
= 20 mA × 3.5 V= 70 mW
700
600
500
400
300
200
100
= T
= T
OL
numbering) unless we reduce the power dissipation in order to be able to
Dmax
0
INTmax
= 8 mA, V
Jmax
Jmax
65
we can find the T
DD
- (45°C/W × 447 mW) = 105-20.115 = 84.885 °C
- (45°C/W × 447 mW) = 125-20.115 = 104.885 °C
D
= 70 mW and P
75
max vs. T
= 3.5 V, maximum 20 I/Os used at the same time in output at low
OL
Table 72
Doc ID 022265 Rev 3
= 0.4 V
85
A
95
T
Amax
T
A
Amax
Jmax
(°C)
IOmax
105
= 100 °C (measured according to JESD51-2),
allowed for a given device temperature range
is calculated as follows:
= 64 mW:
115
125
135
J
< 105 °C).
Suffix 6
Suffix 7
J
remains within the
STM32F051x