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STM8AF6213 数据表(PDF) 99 Page - STMicroelectronics |
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STM8AF6213 数据表(HTML) 99 Page - STMicroelectronics |
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99 / 106 page  DocID025118 Rev 5 99/106 STM8AF6213/23/23A/26 Package information 103 Assuming the following application conditions: Maximum ambient temperature TAmax= 75 °C (measured according to JESD51-2), IDDmax = 8 mA, VDD = 5 V Maximum 20 I/Os used at the same time in output at low level with: IOL = 8 mA, VOL= 0.4 V PINTmax = 8 mA x 5 V= 400 mW PIOmax = 20 x 8 mA x 0.4 V = 64 mW This gives: PINTmax = 400 mW and PIOmax 64 mW: PDmax = 400 mW + 64 mW Thus: PDmax = 464 mW. Using the values obtained in Table 63: Thermal characteristics on page 98 TJmax is calculated as follows: For LQFP32 60 °C/W TJmax = 75 °C + (60 °C/W x464 mW) = 75 °C + 27.8 °C = 102.8 °C This is within the range of the suffix C version parts (-40 < TJ < 125 °C). Parts must be ordered at least with the temperature range suffix C. |
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