Re: TI-H: Memory expansion


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Re: TI-H: Memory expansion




ide buy em if they had the Lcd and Microcontoller.

>Last I checked (a week ago) there were still about 2000 each of the
>NM29A040 and NM29A080 chips available for purchase. These are the 512kB
>and 1MB chips which were used at the core of the Expander SF by Mel 
Tsai.
>
>If I wrote an enhanced TI-85 driver for the ESF, got some of these 
chips,
>and built them into expanders, how many people would buy? Cost for a 
512kB
>ESF would be about $25 to $33, and the 1MB ESF would around $40.
>
>And how many people would pay more for an expander, based on the same
>chip, with microcontroller to run an LCD panel and a few buttons in a
>small alpha-numeric pager case? This particular model could be 
controlled
>entirely through TI-OS, but I'd make an ASM driver as well.
>
>
>-- 
>Greg Hill
>greg-hill@bigfoot.com
>www.comports.com/link
>
>
>


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