RMS.G.EH%MIT-OZ%mit-mc@sri-unix.UUCP (06/18/83)
From: Edward Huang <RMS.G.EH%MIT-OZ@mit-mc> Hello, I'm building a EPROM programmer (See the superb Ciacia's Circut Cellar in BYTE) for 2716 eproms. The Heath H89 uses TMS2716 not Intel 2716 5volt eproms. I got a pinout of the TMS2716 but am not sure of how to program it. Seems like Vcc pin must be grounded (PE) and VDD (+12) applied plus two pins switched around so the TMS2716 can be used in a i2716 socket/programmer. Thank you, -Ed
Clements@BBNA.ARPA (06/20/83)
From: Bob Clements <Clements@BBNA.ARPA> My advice is to ignore TMS2716's. TI should be shot for using the same number (2716) for a three-voltage version of the one-voltage 2716. Both chips are so cheap now that you can afford to throw out your few TMS2716's and replace them with real 2716's. Then you only have to program one kind. The H19 allows jumpering for either kind. I don't know about the H89's processor card, but I'd bet it was the same way. (The TI version of the "real" 2716 is called a TMS2516, by the way.) /Rcc -------
JTW%mit-xx@sri-unix.UUCP (06/21/83)
From: John T. Wroclawski <JTW@mit-xx> Return-path: <info-cpm-request@BRL> Received: from BRL by MIT-XX; Mon 20 Jun 83 02:24:59-EDT From: Bob Clements <Clements@BBNA.ARPA> Subject: Re: Intel 2716 and TI 2716 (TMS2716) My advice is to ignore TMS2716's. TI should be shot for using the same number (2716) for a three-voltage version of the one-voltage 2716. Good advice, but you have shot the wrong people. The TI (3 voltage) 2716 was a quite correctly numbered compatible follow-on product to the (3 voltage) 2708 and 2704 series. It was also available well before the 1-voltage product. It is Intel that ought to be shot for giving the same family number to a radically different device. -john -------
RMS.G.EH%MIT-OZ%mit-mc@sri-unix.UUCP (06/23/83)
From: Edward Huang <RMS.G.EH%MIT-OZ@mit-mc> Hello, Thanks for your replies (Bob Clements,I dont know but OZ refuses to reply to your net site so sending your reply here instead) Well, i'm not going to use the TMS2716 (yeech..3 volt supplies) but reason I asked is that I wanted to try to read some TMS2716 EPROMS with my new programmer/reader. Hmmm...Maybe both Intel and TMS should be shot...the numbering is out of whack. 2716 should belong to Intel as Intel stuff are 27xx .... Ti caused confusion as its eproms are 25xx but had a 2716 in its line with diff voltage...oh well....just like those famous laws (forgot the name). Anyway,...enough on this subject.. thanks to those who replied. -Ed -------