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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1435008/sn74lv05a-is-it-any-issues-of-output-with-5v-pull-up-when-vcc-3-3v-or-power-off
工具与软件：
您好！
当 Vcc=3.3V 且 SN74LV05A 断电时、是否存在任何"具有5V 上拉的输出"问题？
您能告诉我们吗？
谢谢、此致、 M.Hattori.
绝对最大额定值和建议运行条件允许这一点。
我得到了以下答案：
https://e2e.ti.com/support/logic-group/logic/f/logic-forum/737423/sn74lv05a-absolute-maximum-ratings-of-output-voltage-range?tisearch=e2e-sitesearch&keymatch=SN74LV05A%252520%252526%252526%252520pull-up#
因此、我认为没有发生任何问题。
