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74HCT245损坏,求帮忙,谢谢

Other Parts Discussed in Thread: ULN2003A

求解:SN74HCT245PWR 经常损坏

使用环境:使用STM32F103R8T6 通过 SN74HCT245PWR 做驱动器 驱动ULN2003A(TI),后来发现STM32F103R8T6 和SN74HCT245PWR都坏了,两款芯片的 电源的对地阻抗都不对了,原理图如下: