Part Datasheet Search > Microcontrollers > ST Microelectronics > STM8S103K3T6C Datasheet PDF > STM8S103K3T6C Datasheet Pages 105/118
STM8S103K3T6C Datasheet - ST Microelectronics
| Manufacturer: | ST Microelectronics |
| Category: | Microcontrollers |
| Case Package: | LQFP-32 |
| Description: | MCU 8Bit STM8 CISC 8KB Flash 3.3V/5V 32Pin LQFP Tray |
| Pictures: |
STM8S103K3T6CDatasheet PDF
Page:
of 118 Go
If the format of the manual is confusing, please download and read the original PDF file.
DocID15441 Rev 12 105/118
STM8S103F2 STM8S103F3 STM8S103K3 Thermal characteristics
105
12.2 Selecting the product temperature range
When ordering the microcontroller, the temperature range is specified in the order code (see
Section 13: Ordering information).
The following example shows how to calculate the temperature range needed for a given
application.
Assuming the following application conditions:
Maximum ambient temperature T
Amax
= 75°C (measured according to JESD51-2),
I
DDmax
= 8 mA, V
DD
= 5 V, maximum 20 I/Os used at the same time in output at low
level with
I
OL
= 8 mA, V
OL
= 0.4 V
P
INTmax
=
8 mA x 5 V= 400 mW
P
IOmax
=
20 x 8 mA x 0.4 V = 64 mW
This gives: P
INTmax
= 400 mW and P
IOmax
64 mW:
P
Dmax
=
400 mW +
64 mW
Thus: P
Dmax
= 464 mW.
Using the values obtained in Table 58: Thermal characteristics on page 104 T
Jmax
is
calculated as follows:
For LQFP32 60 °C/W
T
Jmax
= 75 °C + (60 °C/W x 464 mW) = 75 °C + 27.8 °C = 102.8 °C
This is within the range of the suffix 6 version parts (-40 < T
J
< 105 °C).
Parts must be ordered at least with the temperature range suffix 6.
Part Datasheet PDF Search
72,405,303 Parts Datasheet PDF, Update more than 5,000 PDF files ervery day.