I am designing a battery operated system with a couple of board connected together.
To minimze power consumption, I want to turn off some sections of the system with a load switch for the power.
I have various types of IO.... 1.8V / 3.3V / 5V logic, I2C, SPI and LVDS.
I was look for some parts to disconnect the I/O and do voltage translation. So I need a couple of different parts for this I guess.
What do you recommend ?
Any tips to prevent leakage current going thru the interface IC or their clamping diodes, etc...
Thank you !