Next EPROM Question - Sizes

Zane H. Healy healyzh at aracnet.com
Sun Sep 16 23:00:16 CDT 2007


At 11:00 PM -0500 9/16/07, Dave Dunfield wrote:
>Mirroring in both halfs is always safe, or do what I do
>and put a jumper on the extra address pin - lets you have
>two selectable ROMS (nor application and a debugger in
>my case usually).

This is actually my end target, though I'll be using switches rather 
than jumpers to select the version I want.  I'll have to get the 
datasheets and pay close attention to the pinouts when building the 
adapters for the ones that are supposed to use the 27128.

Zane


-- 
| Zane H. Healy                    | UNIX Systems Administrator |
| healyzh at aracnet.com (primary)    | OpenVMS Enthusiast         |
| MONK::HEALYZH (DECnet)           | Classic Computer Collector |
+----------------------------------+----------------------------+
|     Empire of the Petal Throne and Traveller Role Playing,    |
|          PDP-10 Emulation and Zane's Computer Museum.         |
|                http://www.aracnet.com/~healyzh/               |



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