Is there any level shifter for QSPI?

Aki Li

Other Parts Discussed in Thread: TXB0104, SN74AXC4T774, 2N7001T, TXB0108, SN74AXC8T245

Customer is looking for level shifter for QSPI, from 1.8V to 3.3V, with 40MHz. They also prefer 1 to 2 mux part, that is 1.8V to either 3.3V or 1.8V. Could you help check it? Thank you.

over 5 years ago

0 Karan Kotadia over 5 years ago

TI__Genius 16725 points

Hello,

We don't have any QSPI specific translators. I don't know much about the QSPI protocol as well. However we have the SN74AXC4T774 or the TXB0104 which meet your translation requirements you are asking for. I am unclear on what you are looking for when you say 1 to 2 mux.

Thanks!

-Karan

0 Aki Li over 5 years ago in reply to Karan Kotadia

TI__Expert 8975 points

Hi Karan,

Thank you. As for the 1 to 2 mux, they mentioned with 1.8V input and 2 output with 3.3V or 1.8V, which can be selected with a switch function.

0 Karan Kotadia over 5 years ago in reply to Aki Li

TI__Genius 16725 points

Hi,

One possible way to achieve this mux capability would be to have multiple translation devices and turn on or off the device you want to use and not use.

You can also use our 2N7001T which is a single bit translator for individual channels.

Thanks!

-Karan

0 Aki Li over 5 years ago in reply to Karan Kotadia

TI__Expert 8975 points

Hi Karan,

I have checked with customer, that for QSPI, it needs 6-channel/bit level shifter. Do you have other suggestion similar to SN74AXC4T774 or the TXB0104? Thank you.

0 Karan Kotadia over 5 years ago in reply to Aki Li

TI__Genius 16725 points

Hi,

We don't have any 6 bit level shifters. We do have the SN74AXC8T245. This has 8 channels on which you can control the direction of 4 channels at a time. As for our auto bidirectional translators TXB, the 8 channels version is called TXB0108.'

Thanks!

-Karan

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Is there any level shifter for QSPI?