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ReAgnus Board (Design Complete)

Help & news on accelerators from TF, Amiga, Atari, CD32 etc

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exxos
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Re: ReAgnus Board (Design Complete)

Post by exxos »

What FPGA is that then ? Assume it must have 5V tolerant IO ports or something as @terriblefire original had buffers on it.
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Gooeyblob
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Re: ReAgnus Board (Design Complete)

Post by Gooeyblob »

ICE65l04f-tcb132c from the schematics.
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alexh
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Re: ReAgnus Board (Design Complete)

Post by alexh »

Doesn't say 5v tolerant in the datasheet
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cmorley
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Re: ReAgnus Board (Design Complete)

Post by cmorley »

alexh wrote: Wed Sep 07, 2022 6:23 am Doesn't say 5v tolerant in the datasheet
The absolute max ratings near the end of the datasheet say 5.5v for (most of) the IO.
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Re: ReAgnus Board (Design Complete)

Post by exxos »

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Gooeyblob
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Re: ReAgnus Board (Design Complete)

Post by Gooeyblob »

Banks 0,1 and 2 are 5v tolerant, bank 3 will interface with the 3.3v 4MB PSRAM x 2 ...
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