• Resolved

Is there any level shifter for QSPI?

Intellectual 2710 points

Replies: 5

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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.

  • 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

  • In reply to Karan Kotadia:

    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.

  • In reply to Aki Li:

    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

  • In reply to Karan Kotadia:

    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.

  • In reply to Aki Li:

    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