SN74CB3Q3257: IO pin impedance

Mark Chen52

Part Number: SN74CB3Q3257

Hi Expert,

Customer would like to know the state when 1B2, 2B2, 3B2, and 4B2 are floating, how much impedance when IO pin floating?

Regards,

Mark

0 Alex Vish over 2 years ago

Hi Mark,

Are you wondering about the impedance of these floating I/O pins when the device is powered off? If so, please see our FAQ : [FAQ] What is the Off Resistance of an Analog Switch / Multiplexer?

This can be calculated by the voltage differential of the input and output of the off-channel divided by the max OFF leakage current (I_OFF)

Thanks!

Alex

Switches & multiplexers forum