We are using SN74CBTLV3125 switch for isolation purpose. Buffer is powered by 3.3V but the signal we are transferring is 1.8V.
1. I like to confirmation on the VCC voltage (3.3V) doesn't have an impact on the I/O data signal switching ?
2. what is the maximum speed this switch will support on the I/O signal transfer ?
Thanks
1) The SN74CBTLV321 datasheet states that it has rail to rail I/O support which means it can switch a signal ranging from 0 V to Vcc (supply voltage). This means with a 3.3 V supply you will have not issue passing a 1.8V signal
2) You can refer to the digital switch guide which has I/O speed for CBTLV family of devices as <=200Mhz .
Thank you,
Adam
