25 Dec
2001
25 Dec
'01
8:31 a.m.
On December 21, Tony Duell wrote:
I've used these chips in a few projects recently. They work very well
and are easy to interface to PIC microcontrollers.
Definitely neat stuff. I'm surprised they were able to get any sort
of amplitude range from those nonvolatile cells, but they seem to have
perfected it.
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
Today I
stopped at a thrift and found a Blue/White metal device made by
ISD and can't really figure it out. It has a place burn a chip and the
one in it is ISD 1016 AP; a four inch speaker at the top and on the
IIRC the ISD... chips were non-volatile, speech-quality audio storage
devices. Not digitised speech, they used different charge levels in
E2PROM-like cells to store analogue qunatities.