eprom burners

[KA4HJH]

Dan wrote:
>anyone have a recomendation for a good, single chip eprom burner?
>preferably one that connects via parallel or serial interfaces?

Check out the burners from Lucid Technologies. They're inexpensive, have
all the features you really need and are not platform dependent; all you
need is a terminal program. They also have the best, least expensive stereo
FM transmitter I've ever seen (everything's synthesised so it's rock solid).

http://www.cs.com/lucid/

Several years ago I bought the semi-kit version of a burner from MicroMint
(the Lucid Tech model showed up on the cover of Radio-Electronics six
months later). The firmware isn't quite as good but it does have one great
feature: NO personality modules. It was designed by computer hardware guru
Steve Ciarcia and employs a clever trick. It applies the correct voltages
to the correct pins on any 24 or 28 pin EPROM using LM317's. As everyone
knows, an LM317 can't go all the way down to zero volts, but Steve got
around this by taking an LM337 negative regulator, setting it to it's
"lowest" volatage, and using the output as the ground reference for all the
positive regulators. Now they go down to zero! You could, of course, use
something else to create a negative reference but what could be simpler or
more elegant?

I don't know if they still sell it or not but check them out.

http://www.micromint.com


Terry Bowman, KA4HJH