tm1640 共阴驱动
时间: 2023-10-30 22:25:46 浏览: 45
TM1640共阴驱动是指TM1640芯片在驱动LED显示器时使用的一种编码方式。在TM1640中,LED的共阴极被连接在一起,通过控制引脚的高低电平来点亮LED。共阴极表示LED的负极或阴极是共用的,而每个LED的正极或阳极则分别通过TM1640芯片的引脚来控制。通过改变引脚的电平,可以实现对LED的点亮和熄灭。 TM1640是一种LED显示器驱动控制专用电路芯片,内部集成了MCU数字接口、数据锁存器、LED驱动等电路。它采用共阴驱动编码方式,可以实现对LED显示器的控制。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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