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关于74ACT244数据手册的问题

Other Parts Discussed in Thread: CD74AC244, CD74ACT244, SN74ACT244

  关于这个芯片的供电的问题:  手册上说

   Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V

  推荐供电:

  VCC Supply voltage                          4.5           ~             5.5 V

  但是我看到几个DSP芯片,都是3V3的系统,也是在用这个芯片,这样使用合适么?