Tiny dual port RAM needed

Another option (if they are still in the catalog):  Motorola MC68HC34.
We used to use them by the hundreds of thousands as dual port rams.
Worked quite well.

On Thu, 02 Jun 2005 14:21:32 -0700, Jim Stewart <jstewart@jkmicro.com>
wrote:

>Eric wrote:
>
>> A $1.00 CPLD from Xilinx or Altera would do the job. You would just
>> have to code up a little VHDL or Verilog to define the dual port ram
>> function.
>
>I predict he'll need a macrocell per bit
>and it will cost him more like $3 per part.

If one side supports DMA and other supports a wait operation
you can just use the CPLD to provide a state machine and
buffering: steal from the existing RAM on one side.

Stephen

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