目前我们的产品是由FPGA和DSP组成的系统。由于两边的的电压不一直,需要FPGA对DSP做一些控制。只是一些很简单的GPIO的高低电平的控制。没有数据通信。比如:需要2.5V/1.8V 的GPIO通过高低电平控制其他的的设备的IO。不知TXB-0108是合适?
I2C的我们选的是TXS系列的应该是合适的。
谢谢。盼复。
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需要看下GPIO的驱动能力啊,TXB0108对输入端的要求是:
For proper operation, the device driving the data I/Os of the TXB0108 must have drive strength of at least ±2 mA.