SN65MLVD203B: 1.8V IO compatibility

Shawn_Wang

Part Number: SN65MLVD203B
Other Parts Discussed in Thread: LSF0101, SN74AXC1T45

Hi team

I noticed that TI MLVDS device is not able to support 1.8V FPGA IO and usually it needs a additional level translator.

Now the customer is considering SN65MLVD203B in a 1.8V FPGA IO system, could you help recommend a correct level translator for this application?

Let me know if you have any questions.

over 2 years ago

0 Shawn_Wang over 2 years ago

TI__Expert 3811 points

I roughly found bidirectional LSF0101 and unidirectional SN74AXC1T45 should be good choices for this application.

But could you help check whether SN74AVC8T245 is suitable for this application? This device is also used on other projects and the customer wants to try this device first.

+1 David (ASIC) Liu over 2 years ago in reply to Shawn_Wang

TI__Guru*** 139405 points

Hi,

Why do you need a 8-bit level shifter? You can use SN74AXC1T45 single-bit level shifter.

Thanks

David

0 Shawn_Wang over 2 years ago in reply to David (ASIC) Liu

TI__Expert 3811 points

Emmm... SN74AXC1T45 is used in their old projects and the customer wants to do a EVM to test the MLVDS performance first.

From the view of spec, are these three device both applied to this application?

0 David (ASIC) Liu over 2 years ago in reply to Shawn_Wang

TI__Guru*** 139405 points

Hi,

If you compare the electrical characteristics in section 6.5, these two devices are not the same.

Thanks

David

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SN65MLVD203B: 1.8V IO compatibility