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Explorer
Explorer
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Registered: ‎04-19-2016

Is there LVDS 1.8V IO support in the XC7Z020

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Hello All, 

 

I am currently planning to use XC7Z020 SoC. It has LVDS_25 IO signal attribute. However, I wonder that whether the XC7Z020 contains LVDS 1.8V signal buffers or not?  

 

LVDS (Low-Voltage Differential Signaling), 1.8V is written in this XC7Z020's  Datasheet . But it is not clear whether XC7Z020 has LVDS_18 or not ?

 

Regards,

 

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Moderator
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Registered: ‎07-23-2015

@doner_t XC7Z020 has only HR banks. So only LVDS_25 is supported. 

 

However LVDS_25 & LVDS have the same specs except that LVDS_25 is for HR (2.5V Vcco if using outputs) & LVDS is available for HP Banks (1.8V Vcco needed if outputs needed)

- Giri
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Moderator
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7,431 Views
Registered: ‎07-23-2015

@doner_t XC7Z020 has only HR banks. So only LVDS_25 is supported. 

 

However LVDS_25 & LVDS have the same specs except that LVDS_25 is for HR (2.5V Vcco if using outputs) & LVDS is available for HP Banks (1.8V Vcco needed if outputs needed)

- Giri
--------------------------------------------------------------------------------------------------------------------
There's no such thing as a stupid question. Feel free to ask but do a quick search to make sure it ain't already answered.
Keep conversing, give Kudos and Accept Solution when you get one.
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Explorer
Explorer
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Registered: ‎04-19-2016

Hello, 

 

LVDS at the 1.8V may be needed. But XC7Z020 has only HR banks. So only LVDS_25 is supported. OK.

So maybe we can use the XC7Z045 or XC7Z100 that has the HP banks, 1.8V LVDS avaliable, if i am not wrong ? 

 

Regards,

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Moderator
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Registered: ‎07-23-2015

@doner_t If you only have 1.8V available and want LVDS, then yes, you will need to use HP banks which are present in XC7Z030 & higher devices i..e XC7Z030, XC7Z035, XC7Z040, XC7Z100

 

- Giri
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There's no such thing as a stupid question. Feel free to ask but do a quick search to make sure it ain't already answered.
Keep conversing, give Kudos and Accept Solution when you get one.
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Registered: ‎04-19-2016

 

Dear gnarahar, 

 

Thank you so much.

 

Regards,

doner_t

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