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3.3V时钟如何转成5V时钟?

Other Parts Discussed in Thread: TXS0101, SN74HC14

DSP(VC33)作为主处理器,FPGA作为从处理器。为了实现两者时钟同步,外部采用了一片3.3V的有源晶振,但FPGA的IO电源为5V,请问如何转换?

考虑过在FPGA时钟输入与有源晶振输出之间加一片HC14,利用施密特整形,但HC14的V+最大值正好在3.3V左右,余量很小,电路的可靠性要求高,请问该如何解决?