[time-nuts] HP 3314A ROMs

[Dave M]

> In message <BANLkTi=fpfEuPw+vL8rsZz1R7bsA4NKcVA at mail.gmail.com>,
> Joseph Gray wr ites:
>> No luck so far. I wired up an adapter and tried reading the Mostek
>> part as a 2764. All I got was zeros. I read that sometimes this is
>> due
>> to not enough power to read the old parts, so I plugged a wall wart
>> into my programmer for extra juice (it's USB powered normally). This
>> didn't help. I guess I'll have to wait until I get a proper
>> definition
>> for the software to read this part.
>
> Check if the MK36* need more than a single +5V supply...  Old EPROMS
> usually needed two or even three different supplies.
>
>
> On Mon, Apr 18, 2011 at 2:32 AM, Poul-Henning Kamp
> <phk at phk.freebsd.dk> wrote:
>> Check if the MK36* need more than a single +5V supply... ?Old EPROMS
>> usually needed two or even three different supplies.
>>
>> --
>> Poul-Henning Kamp ? ? ? | UNIX since Zilog Zeus 3.20
>

The Motorola MCM68766 is listed as a direct pip-for-pin replacement for the 
Mostek device.  If your programmer can handle the Motorola part, you should 
be able to read the Mostek devices and write the data into a Motorola part. 
I bought a supply of the MCM68766 EPROMs a few years ago (Ebay), and still 
have a few.  Jameco used to stock them, but apparently, no longer.
I checked Ebay just now... there are several vendors selling them.  One 
vendor is offerring ten in a package deal for $20 + S/H (Item # 
350344738234).

Cheers,
David
dgminala at mediacombb dot net