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PCA9535的IO驱动

Other Parts Discussed in Thread: PCA9535

PCA9535的IO1部分用来控制LED,但是LED1~LED在另外一块PCB上,PCA9535的IO1到LED是通过线缆连接,线缆长度在一米左右,这样驱动LED的时候是否会有影响,存在驱动能力不足的情况

现在准备在9535的输出端增加74系列;另一种是在LED的板子上再用一片9535

就这种问题请教一下大家