CD40109B

I am not familiar with SPI levels. What voltage levels do you need translated?

Hi Chris,

                   Do not need translated, just need to find an SPI bus buffers, the voltage needs at least 15V or more，do you have any suggest? thanks. 

CD4010B should work

Hi Chris,

             The cd40109b and cd4010 function different? if the use cd40109 or cd4010 at VCC=VDD can work? thanks.

The CD4010 is simply a buffer that works at 15V. The CD40109 is a translator but can be use as a buffer if VCC and Vdd are equal.