TI有没有这样的开机芯片。当按键J1按一下,U2输出高电平.U2输出高电平后。按键J1.短按U2不作任何反应(U2还是一直输出高电平)。按键J1长按,U2输出低电平!!
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TI有没有这样的开机芯片。当按键J1按一下,U2输出高电平.U2输出高电平后。按键J1.短按U2不作任何反应(U2还是一直输出高电平)。按键J1长按,U2输出低电平!!