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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1052410/sn74hc595-when-it-is-working-the-mcu-is-suddenly-powered-off-and-the-output-status-of-sn74hc595
大家好、，
？工作时、MCU 突然断电、输出状态为 SN74HC595 μ A
输出仅随 RCLK 而变化。 当 MCU 断电时、RCLK 会发生什么情况？
