LSF0101: Input Impedance on EN

Brandon Gee

Part Number: LSF0101

I'm looking for a bi-directional logic translator that will power on with tri-state/High Z input impedance until enabled. Will the LSF family work here? The reason power-on needs high Z input impedance is b/c the processor uses the GPIO on power up for it's boot source and then releases them when done.

over 7 years ago

0 Emrys Maier over 7 years ago

TI__Guru* 96591 points

Hi Brandon,

I have notified the appropriate applications engineer who will get back with you soon.

0 ShreyasRao over 7 years ago in reply to Emrys Maier

TI__Guru 55970 points

Hi Brandon ,

The LSF, TXS ,TXB family all have OE enable pins which ensures the channels are in Hi-Z unless activated.All these devices are auto directional translators.
Each device have their own characteristic differences in their operation. LSF and TXS are passive translators with no drive and TXB is suited for push pull applications but with minimum drive.

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LSF0101: Input Impedance on EN