logic level shifter

Todd Solak

Hello,

Does TI offer any single gate, non-inverting buffer, CMOS logic level shifters? We are looking for two separate components, one that can go from 1.8V in to 3.3V out and one that can go from 3.3V in to 1.8V out. Usually these parts have part numbers including something like 74VHCT and 74VHC, respectively.

Thanks,

Todd

over 13 years ago

0 Chris Cockrill over 13 years ago

TI__Mastermind 46480 points

For translating 1.8V to 3.3V you can use the SN74AUP1T17

For translating 3.3V to 1.8V you cna use the SN74AUP1G17

0 Todd Solak over 13 years ago in reply to Chris Cockrill

TI__Intellectual 1415 points

Do we offer anything similar to the MC74VHC1GT50? This device is beingconsidered and I am interested to know if there is a TI alternative.

0 Chris Cockrill over 13 years ago in reply to Todd Solak

TI__Mastermind 46480 points

The pinout and specs are the same as SN74AHCT1G125. The only thing different is that pin 1 is a no connect on the ON part and it is an OE for the TI part. If they could tie pin 1 to gnd it would work exactly the same for bothe parts.

0 Todd Solak over 13 years ago in reply to Chris Cockrill

TI__Intellectual 1415 points

Hello,

Can you please help me identify the single gate options to provide 1.8v to 3.3V and 3.3v to 1.8V level translation? Again the part being looked at today is the MC74VHC1GT50.

Thanks!

Todd

0 Chris Cockrill over 13 years ago in reply to Todd Solak

TI__Mastermind 46480 points

Sorry

This can translate 1.8V to 3.3V SN74AUP1T17 with Vcc =3.3V

This can translate 3.3V to 1.8V SN74AUP1G17 with Vcc = 1.8V

Both match pinout of MC74VHC1GT50

0 Todd Solak over 13 years ago in reply to Chris Cockrill

TI__Intellectual 1415 points

Hello, can you please help me with the quesion below?

"In regards to these parts we require, we have received a quote for a single line, 4 part solution for about $0.09 total. We would like a single line solution from TI around this price point if possible because we are trying to reduce the number of lines on the BOM. Once again we need a solution that is able to shift from a 1.8V input to a 3.3V output and a 3.3V input to a 1.8V output.

Please let me know if there are any other options from TI that would fulfill our needs. Thanks"

0 Todd Solak over 13 years ago in reply to Todd Solak

TI__Intellectual 1415 points

Hello,

Can someone please assist me with my recent question below?

Please let me know if there are any other options from TI that would fulfill our needs.

Thanks,

Todd

0 Chris Cockrill over 13 years ago in reply to Todd Solak

TI__Mastermind 46480 points

Hi Todd

I am not sure what you are requesting. Do you want a 4 bit translator that can translate bothe directions? If so

Here are some options

1 x SN74AVC4T245 dual vcc voltage translator.

2 x SN74CB3T3306 or 1 x SN74CB3T3245 both of these require pullup resistors on the High side

2 x SN74TVC3306 voltage clamp type device aslo requires pullups

You would need to get prices from your field sales rep.

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logic level shifter