Radio Shack abandons components

If you want to translate a schematic from the old TTL SSI/MSI devices to a programmable device in a dense package, it's much more likely to happen easily in a CPLD than an FPGA, though people keep telling me that FPGA's provide more logic at lower cost. I agree that it's more difficult to make it happen in FPGA, but for a circuit the size of a Multibus-1 or (somewhat smaller) S-100 board, a moderately priced CPLD should get the job done pretty well, though they used enough one-shots to complicate the job considerably. With device pin-pitch at 20-25 mils, (actually the metric equivalent) it's unlikely one will hand wire anything with them. Therefore one's limited to using PCB mounted parts. Since disposal of PCB-related materials is so costly these days, it's unlikely one will want to do that at home. What this leaves is a need for an adapter for some fairly standard-packaged-CPLD and/or FPGA, and then simply work within the confines of what one can have made up by way of an adapter from that package to something that one can hand-wire or wire-wrap. Dick ----- Original Message ----- From: <dmc!njc(a)opal.tseinc.com> To: <classiccmp(a)classiccmp.org> Sent: Tuesday, November 20, 2001 11:44 AM Subject: Re: Radio Shack abandons components