Friday, July 19, 2013

New EPROM Tools!

I have ordered some tools to experiment with EPROMs. I ordered a "Universal Memory Programmer" that goes by the name MEMprog2 from eBay user cosmicmedevac. The unit arrived quickly and very well packed.

MEMprog2 Programmer
MEMprog2 Programmer
I was able to load a file onto an old Intel D27256 EPROM that I have and then read the file back successfully. The programmer is a very nice piece of gear with device coverage of over 15000 units.

I have also ordered a very low-cost EPROM eraser from eBay user techex_us. This unit also arrived quickly and well packed. It is definitely a piece of gear that I do not plan to leave connected to mains unattended. The entire device feels quite cheap. The AC power cord is thin and the rotary dial seems to have a mind of its' own. The one small piece that I do trust is the mains power switch. I can't complain for less than $25 shipped.

Cheap EPROM Eraser
I had no trouble erasing a few EPROMs in this little oven. I am quite happy with the product despite its' quality shortcomings.

I have a box of Intel 8035L microcontrollers (from the MCS-48, 8048 line) that have been in my collection for a few years. They have a copyright date of 1977 on them. I plan to bring one of these processors online on a breadboard. It should be interesting to experiment with a processor that is nearly twice my age.