>-----Original Message-----
>From: Brendan Moran [mailto:annirack@SHAW.CA]
>Sent: 16 January 2004 06:53
>To: PICLIST@MITVMA.MIT.EDU
>Subject: [EE]: PDA Memory
>
>
>I was wondering if anyone knew what kind of memory PDAs use.
>
>The three possibilities I see are:
>SRAM
>Flash
>SDRAM
>
>SRAM is really expensive in any size over 4Mib...  64MiB would
>seem prohibitively expensive, yet some companies use it...
>And for products that colst little more than the price of
>their LCD too. Flash Is non-volatile, yet PDAs don't use it.
>Probably because of the write life. SDRAM uses a lot of power,
>and requires refresh to maintain its memory.
>
>So, SRAM looks like the most suitable for PDAs, but I can't
>see how they can kepp the prices down with SRAM.
>
>Is there something I'm missing here?  Or am I just looking in
>the wrong places for SRAM?
>
>--Brendan

Having taken apart both my Palm V and my Dell Axim Pocket PC, they both use
low power SDRAM.  ISTR the memory in the Axim was specifically designed for
low power mobile computer use.

Regards

Mike




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