27 Sep
2021
27 Sep
'21
10:57 a.m.
On Mon, Sep 27, 2021 at 8:23 AM Tom Hunter via cctalk
<cctalk at classiccmp.org> wrote:
The part is an Intersil IM5600CP, but these were also made by others, for
example Signetics and Philips made the 82S23 and TI and NTE made the faster
SN74S188N. Some vendors still sell these parts and there are even a few on
Ebay.
How do I program these PROMs? I found one somewhat obscure description of
the algorithm in the NTE datasheet, but I suspect that each manufacturer
had (somewhat) different algorithms.
Is there an affordable commercial programmer out there which can program
these PROMs?
How do you program a single bipolar PROM as a one time occurance? Find
someone willing to do it for you for the cost of the postage :)
Are there affordable commercial programmers which can reliably program
bipolar PROMs with device vendor approved programming algorithms? I
have an older Data I/O UniSite and a newer BP Microsystems BP-1610
which between the two of them can cover the majority of those older
devices, and the BP-1610 is currently supported with regular software
updates. I wouldn't call either of those two programmers "affordable",
and you have to be patient to pick one up on eBay.
The older parallel port interface BP-1200 and BP-1400 device
programmers probably have the same bipolar PROM support as the
BP-1610, and can more often be found at somewhat reasonable prices on
eBay, but software updates for new devices were discontinued for those
non-USB interface programmers several years ago.