Re: TI-H: Internal mem expander question

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Internal mem expander question
From: Grant Stockly <gussie@alaska.net>
Date: Thu, 19 Nov 1998 16:37:25 -0900
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: ti-hardware@lists.ticalc.org


>---Filip Matousek <filip.matousek@swipnet.se> wrote:
>> OK, I have a questoin about the internal mem expander, is there some
>> schems?
>> and could anyone send them to me?
>> And I wounder if anyone knows the conection of the ram chip in the
>> ti-83, 85?
>>
>>
>> I would be verry pleased if I got the ansers.
>> Thanks
>> Filip
>
>Yes, there are schems (i made them.) I will upload them when i get the
>chance.
>
>Neil
>
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Ummm...  Wire one goes to wire 1...   Put transistors on csel lines to
select chip and keep contents, add chipselect switch.

does your schematics have those?

Grant

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