home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!news.larc.nasa.gov!grissom.larc.nasa.gov!kludge
- From: kludge@grissom.larc.nasa.gov (Scott Dorsey)
- Newsgroups: sci.electronics
- Subject: Re: Strange microcontroller
- Date: 2 Jan 1993 01:03:58 GMT
- Organization: NASA Langley Research Center and Reptile Farm
- Lines: 22
- Message-ID: <1i2pluINN5e5@rave.larc.nasa.gov>
- References: <N2sPwB1w165w@tfsquad.mn.org>
- NNTP-Posting-Host: grissom.larc.nasa.gov
-
- In article <N2sPwB1w165w@tfsquad.mn.org> mike_d@tfsquad.mn.org (mike diack) writes:
- >Anyone ever heard of a microcontroller&/microprocessor called a
- >D77P20D ?. I met a few of these the other day, and a quick glance in
- >someone elses IC Master (mine is about 8000 miles away at present) told
- >me that it was a DSP optimised chip with a bloody fast multiply - well
- >compared to a '51 or 6805/11 anyway. My interest was aroused that these
- >could be useful in grotty little audio applications where the more fancy
- >(and expensive) DSP units were not needed. They are made by NEC and are
- >in a ceramic windowed package.
-
- These are fairly nifty chips, with a rather slick 8-bit DSP design. They
- aren't TMS320's by any means, but they look like they'd be easy to work
- with and fine for a lot of simple work.
-
- The bad news is that NEC doesn't want to sell you any. I managed to get
- data out of them only after several hours talking to various people at
- the US offices. They basically told me that none of their distributors
- will handle it, and since I only needed a couple hundred, I was small
- potatoes and not worth talking to.
-
- NEC is really ghastly to deal with. But Sanyo is even worse.
- --scott
-