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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1413690/sn74hcs86-q1-sn74hcs86qbqarq1-thermal-pad
工具与软件：
必须将 SN74HCS86QBQARQ1的散热焊盘连接到 SN74HCS86QBQARQ1的 GND。 这在数据表中不清楚。
GND 或悬空；请参阅 [常见问题解答]在哪里连接逻辑 QFN 器件的散热焊盘？
谢谢你
