stm8af6148 STMicroelectronics, stm8af6148 Datasheet - Page 82
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stm8af6148
Manufacturer Part Number
stm8af6148
Description
Automotive 8-bit Mcu, With Up To 32 Kbytes Flash, Eeprom, 10-bit Adc, Timers, Lin, Spi, I 2c, 3 V To 5.5 V
Manufacturer
STMicroelectronics
Datasheet
1.STM8AF6148.pdf
(90 pages)
- Current page: 82 of 90
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Electrical characteristics
11.4.2
82/90
Selecting the product temperature range
When ordering the microcontroller, the temperature range is specified in the order code (see
Figure 43: STM8A order codes on page 86
The following example shows how to calculate the temperature range needed for a given
application.
Assuming the following application conditions:
Using the values obtained in
calculated as follows:
Maximum ambient temperature T
I
level with I
This gives: P
Thus: P
–
DDmax
For LQFP64 46°C/W
This is within the range of the suffix B version parts (-40 < T
Parts must be ordered at least with the temperature range suffix B.
= 8 mA, V
Dmax
T
OL
Jmax
INTmax
= 464 mW
= 8 mA, V
= 82° C + (46° C/W x 464 mW) = 82°C + 21°C = 103° C
DD
= 400 mW and P
= 5 V, maximum 20 I/Os used at the same time in output at low
OL
Table 41: Thermal characteristics on page 81
P
= 0.4 V
IOmax
P
INTmax
P
Dmax
= 20 x 8 mA x 0.4 V = 64 mW
Amax
= 8 mA x 5 V= 400 mW
IOmax
= 400 mW + 64 mW
= 82 °C (measured according to JESD51-2),
).
64 mW:
STM8AF61xx STM8AH61xx
J
< 105° C).
T
Jmax
is
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