sn74alvc245 inputs tolerant to 3.3V when VCC=1.8V??

Prasanthi Busineni

Other Parts Discussed in Thread: SN74ALVC245, SN74LVC245A, SN74AUC245

hi ,

I want to use SN74ALVC245 for shifting the voltage from 3.3V to 1.8V. If my VCC is 1.8V will the inputs of the chip are tolerant to 3.3V? the datasheet VIH max value is not given and VI is given as 0 to VCC.

Thanks

Prasanthi

over 11 years ago

0 Chris Cockrill over 11 years ago

TI__Mastermind 46480 points

Hi Prasanthi

Use one of these instead SN74LVC245A or SN74AUC245.

0 Prasanthi Busineni over 11 years ago in reply to Chris Cockrill

Prodigy 180 points

hi chris,

Thank you for reply.

sn74lvc245a is lvttl output. so I am not sure of it driving the 1.8V LVCMOS logic. can you suggest.

SN74AUC245 I can use but I want it to be future footprint compatible,

thanks

Prasanthi

Logic

Logic forum

sn74alvc245 inputs tolerant to 3.3V when VCC=1.8V??