TXB0108: 3.3V TTL to 5V CMOS bidirectional level shifter

Francesco Bausi

Part Number: TXB0108
Other Parts Discussed in Thread: LSF0108-Q1, SN74GTL2003, SN74LVC8T245

Hello,

I am looking for an octal bidirectional level shifter 3.3V TTL to 5V CMOS.

For reliability issues (the IC will be used in a measurement instrument) I need to control the direction with a direction pin and I don’t want the IC to sense it automatically.

I have found the TXB0108 but it only translates from CMOS (not TTL).

Other ICs I have found are SN74GTL2003 and LSF0108-Q1 but they both have automatic direction detection.

Do you have any suggestions?

Many thanks.

Best regards,

Francesco

over 6 years ago

0 Emrys Maier over 6 years ago

TI__Guru* 96591 points

Hi Francesco,

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

0 ShreyasRao over 6 years ago in reply to Emrys Maier

TI__Guru 56100 points

maybe this link for direction controlled translation helps ?

0 ShreyasRao over 6 years ago in reply to ShreyasRao

TI__Guru 56100 points

Hi Francesco,

you can filter to the right part with the link above , else , my best suggestion for you would be SN74LVC8T245.

0 Francesco Bausi over 6 years ago in reply to ShreyasRao

Prodigy 55 points

Hi ShreyasRao,

Thanks, that is exactly what I was looking for.

Thanks,

Francesco

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TXB0108: 3.3V TTL to 5V CMOS bidirectional level shifter