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该器件可以将VREFA设置成3.3V,VREFB也是3.3V，用于同等级的SPI缓冲吗？另外，使用场景为板内和板外SPI通信，这就意味着PCB的走线比较长，是否可以？如果不可以，是否能推荐一款SPI的缓冲器？
您好，
h d 说：该器件可以将VREFA设置成3.3V,VREFB也是3.3V
不可以的：
具体原因分析见下面文档1.2章节：
https://www.tij.co.jp/jp/lit/an/scea060/scea060.pdf
看下下面链接的推荐，
https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1079688/sn74lvc125a-q1-for-long-distance-of-spi?tisearch=e2e-sitesearch&keymatch=SPI%25252520buffer#
