STM8S005K6T6C Datasheet, PDF (98/103 Pages) STMicroelectronics – Value line, 16 MHz STM8S 8-bit MCU, 32 Kbytes Flash

Thermal characteristics
STM8S005K6 STM8S005C6
• Maximum 8 standard I/Os used at the same time in output at low level with IOL = 10 mA,
V_OL= 2 V
• Maximum 4 high sink I/Os used at the same time in output at low level with IOL = 20 mA,
V_OL= 1.5 V
• Maximum 2 true open drain I/Os used at the same time in output at low level with IOL =
20 mA, V_OL= 2 V
P_INTmax = 15 mA x 5.5 V = 82.5 mW
P_IOmax = (10 mA x 2 V x 8 )+(20 mA x 2 V x 2)+(20 mA x 1.5 V x 4) = 360 mW
This gives: P_INTmax = 82.5 mW and P_IOmax 360 mW:
P_Dmax = 82.5 mW + 360 mW
Thus: P_Dmax = 443 mW
T_Jmax for LQFP32 can be calculated as follows, using the thermal resistance Θ_JA :
T_Jmax = 75° C + (59° C/W x 464 mW) = 75°C + 27°C = 102° C
This is within the range of the suffix 6 version parts (-40 < T_J < 106° C). In this case, parts
must be ordered at least with the temperature range suffix 6.
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