UmTRXv2 final project

Alexander Chemeris alexander.chemeris at
Tue Jul 3 20:59:58 UTC 2012

On Wed, Jul 4, 2012 at 12:39 AM, Alexander Chemeris
<alexander.chemeris at> wrote:
> On Wed, Jul 4, 2012 at 12:36 AM, Jean-Samuel Najnudel - BJT PARTNERS
> SARL <jsn at> wrote:
>> Hi Alexander,
>> On 7/3/12, Alexander Chemeris <alexander.chemeris at> wrote:
>>> Hi Jean-Samuel,
>>> We should be fine with this chip:
>>> (with no PCB changes).
>> This looks good. However, this SRAM is 18 MBits instead of 36 MBits.
>> This makes a quite big difference.
>> Are you sure this will be fine ?
>> Andrey, do you confirm this is fine ? Is this chip fully pin compatible ?
> 18Mbit is fine, but I was wrong with the pin compatibility. Now
> looking at other options.

I apologize again - it _is_ pin-to-pin compatible. A photo at DigiKey
messed things for me. But Andrey Sviyazov and Andrew Karpenkov checked
with datasheet and confirm that it is a direct replacement.

Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио

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