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VKuma63
Beginner
393 Views

In my design i am using the cyclone device with the manufacturer partnumber "EP3C55F484I7NGA". We are sending some single ended signals with 1.8V. But i have doubt that whether the device has capability of LVCMOS mode of logic?

 
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4 Replies
YuanLi_S_Intel
Employee
52 Views

Hi Vilas,

 

Why not? LVCMOS is available in Cyclone III.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyc3/cyc3_ciii52001.pdf (Page 10)

 

Regards,

YL

VKuma63
Beginner
52 Views

Hello Sooyl,

 

Thanks! for your info.

 

I have referred the datasheet earlier itself it states clearly, there will be option for LVTTL/LVCMOS 1.8 V in page No 10.

 

But i have to do Signal integrity analysis for the same signals using the Cyclone3 IBIS models. In that LVCMOS 1.8V model selector was not available. Only LVTTL models are present.I got confused over here.

 

So, what can be considered for SI simulations. kindly provide your suggestion.

 

Regards,

Vilas Kumar S

YuanLi_S_Intel
Employee
52 Views

Hi Vilas Kumar,

 

Sorry for confusing, LVTTL / LVCMOS 1.8V share the same I/O behavior. Thus, you may use LVTTL 1.8V for LVCMOS 1.8V for SI simulation.

 

Regards,

YL

VKuma63
Beginner
52 Views

Thanks

 

Regards,

Vilas Kumar S

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