Re: Another mystery card (to me at least)

[Dan Foster <usenet@evilphb.org>]

In article <MPG.1b9561f6a3d28e9a989680@news.individual.de>, Robert Flossmann <rfka01@gmx.de> wrote:
>
> The link to the picture is is: 
> http://www.speedsurf.to/bertl/mystery.html
>
> The bigger ICs (of which two are missing) have the number: hm6116LP.3

I believe the HM6116LP-3 chips are 2Kx8 (ie, 2K) SRAM chips at 150 ns.

LP stands for 'low power'.

> Do you know this card? What do the DIP switches select? Do I have to add 
> the two missing chips before using the card?

Not familiar with this one. Appears to have three Cadmium (maybe NiCad?)
AA form factor batteries soldered to the board, and a bunch of 74LS
logic chips and resistors/capacitors.

Unfortunately, the photo is too poor to read identifying details. May
want to ask the seller to list all the names on each chip or near them.
(Such as the name on lower left corner of the board, the name on the DIP
switches, etc.)

The card does not appear to have any external peripheral attachment so
whatever it does, is probably provided through RAM and ROM on the card
and interfaces with the system's expansion slot.

Appears to be a 50 pin expansion slot card... hmm... the DIP switch
appears to say MMD, but that doesn't ring a bell to me.

-Dan