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Recent content by mikesmith

  1. mikesmith

    In-system programmable, pin-compatible 27Cxxx EPROM replacements?

    Thanks for the thought, but no; they (and their descendants) all require #WE and a bidirectional databus. The parts I think I'm recalling were specifically intended as a drop-in replacement for designs that did not support writes to ROM; everything was done by reading, using the address pins to...
  2. mikesmith

    In-system programmable, pin-compatible 27Cxxx EPROM replacements?

    Folks. I have a distant memory of a family of JEDEC-pin-compatible memory devices (EEPROM or possibly NOR flash) that could be programmed in-system by address manipulation, i.e. without needing the system to explicitly support writing to the ROM. No amount of searching has turned up anything...
  3. mikesmith

    Sun Microsystems keyboard prices

    Ditto (argh) for older HP workstations. Even if you can get a keyboard, it's often missing the (magic) cable.
  4. mikesmith

    Newbie looking to get into vintage unix workstations, requesting advice.

    A bit late to the party, but in case it's worth anything... I just picked up an HP 9000/382 with 20M/525M off eBay for $240 shipped. This is a 25MHz '040 that will run HP/UX up to 9.x as well as Linux or NetBSD (also HP Basic, or Pascal). These tend to go for a bit more, but if you're patient...
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