Re: Apple IIc memory expansion chips

[supertimer@aol.com (Supertimer)]

someone@wavetech.net (Greg Buchner) wrote:

>supertimer@aol.com (Supertimer) wrote:
>
>>summersb@ucs.orst.edu (Benjamin Summers) wrote:
>>
>>>Can anyone tell me what type of RAM chip is used on the Apple IIc memory
>>>expansion board?  Are these chips still available anywhere?
>>
>>Hi, they are 41256 memory chips....8 of these make 1MB (since no
>>parity).  Try http://www.allelec.com/ Alltech Electronics.
>
>Nope, slight mistake...8 41256 chips make 256K.  At least this is
>according to http://www.thechipmerchant.com/tech/ram.htm#type and
>Nec, Oki, Samsung, & Toshiba all use the 41256 to indicate that it
>is 256K by 1 bit.  The page listed is a very handy place to brush
>up on memory...it's helped a lot when I've tried to figure out how
>big SIMM's are.

Greg, you are absolutely right.  I made a stupid mistake....

8 41256 chips do make a 256k bank and the IIc memory
expansion board has 4 of these banks for 1MB.  Thanks for
the correction.