Search found 14 matches

by lezanderson
Thu Feb 28, 2019 9:58 am
Forum: Hardware
Topic: Free 68000 ICs to Good Home.
Replies: 18
Views: 2241

Re: Free 68000 ICs to Good Home.

Thoughts and ideas on designing and building a Homebrew QL My thoughts and musings on the design and possible building of a DIY / homebrew Sinclair QL Specification: 68008 CPU (HD/MC68008P12) 12Mhz Max. 512K SRAM or more 64K,128K EPROM CPLD to emulate ZX8301,ZX8302 Modern MCU to do functions of 804...
by lezanderson
Thu Feb 28, 2019 9:56 am
Forum: Hardware
Topic: Free 68000 ICs to Good Home.
Replies: 18
Views: 2241

Re: Free 68000 ICs to Good Home.

Best to email me if you want any of the ICs as I don't check the forum everyday, just occasionally.
by lezanderson
Thu Feb 28, 2019 9:55 am
Forum: Hardware
Topic: Free 68000 ICs to Good Home.
Replies: 18
Views: 2241

Re: Free 68000 ICs to Good Home.

That's a nice list. :) There's a couple of specific items I'd be grateful for. Would you be interested if I paid shipping to Texas, USA? The GALs and the 1772s. Sorry, couldn't handle the British weather any more and quit ;) I may only have WD1773s left..I'll have to check. I believe these have the...
by lezanderson
Mon Feb 25, 2019 3:12 pm
Forum: Hardware
Topic: Free 68000 ICs to Good Home.
Replies: 18
Views: 2241

Re: Free 68000 ICs to Good Home.

** More FREE ICs... to Good Home !! Are you Building a Homebrew Sinclair QL? If anyone is interested in design and building their own Sinclair QL ( or is already doing so) Then I can offer FREE ICs. I have Integrated Circuits (ICs) like : MC68008Pxx DIP48 MC68901 MFU MC68230 SIO MC68681 PIO 512K SR...
by lezanderson
Thu Jan 24, 2019 9:59 am
Forum: Hardware
Topic: Complex Programmable logic CPLDs
Replies: 4
Views: 873

Re: Complex Programmable logic CPLDs

Has anyone put the QLs ULAs onto a CPLD ? Putting QL ULAs onto a Complex programmable logic Device (CPLD)? Has anyone put the functionality of the QLs ULAs (ZX8301/ZX8302) Chips into VHDL/Verilog Code which could be used to programme a CPLD? If so how many Macrocells/logic blocks are needed, in ord...
by lezanderson
Mon Jan 21, 2019 3:48 pm
Forum: Hardware
Topic: Free 68000 ICs to Good Home.
Replies: 18
Views: 2241

Re: Free 68000 ICs to Good Home.

All Gone !!

The ICs have now all gone (or will) be going to a good home.
by lezanderson
Mon Jan 21, 2019 1:26 pm
Forum: Hardware
Topic: Complex Programmable logic CPLDs
Replies: 4
Views: 873

Complex Programmable logic CPLDs

Hi. CPLDs...Free to Good Home I have a handful of surplus CPLDs (Complex Programmable Logic Devices) EPM7128SLC84-15s and EPM7032SLC44-10s . Anyone that is interested in learning VHDL code/logic programming may find them useful as 'Glue logic ' in designs. These will work with 5V TTL logic levels. *...
by lezanderson
Sat Jan 19, 2019 10:11 am
Forum: Hardware
Topic: Free 68000 ICs to Good Home.
Replies: 18
Views: 2241

Free 68000 ICs to Good Home.

Hi. Free to Good Home. I've got some surplus 68000 ICs and stuff... if anyone wants them for Retrobrew projects etc then just email me. (Note 68000 ICs are in PLCC package): 68HC000FNxx PLCC68 1pcs 68010FNxx PLCC68 1pcs 68008FNxx PLCC52 1pcs 68901 PLCC 1pcs 68230 PLCC 1pcs 68881 FPU PLCC 1pcs 512K S...
by lezanderson
Sat Dec 28, 2013 12:59 pm
Forum: Hardware
Topic: Homebrew QL kits for DIY QL builders !
Replies: 10
Views: 4108

Re: Homebrew QL kits for DIY QL builders !

Sorry No PCB .. but at the price you can't really complain.. .. Just ICs, some D-type sockets, PS/2 keyboard connectors, switches, LEDs 7805 reg etc They are aimed mainly at those interested in electronics and possibly building their own homebrew machine and learning about microelectronics on the wa...
by lezanderson
Sat Dec 28, 2013 12:56 pm
Forum: Hardware
Topic: Homebrew QL kits for DIY QL builders !
Replies: 10
Views: 4108

Re: Homebrew QL kits for DIY QL builders !

these kits are aimed at those with an electronics or technical background (or those willing to learn) whom wish to make/design their own 68000 machine..possibly a low cost Sinclair QL. Thus learning about how to design and build your own microcomputer system The EPM7128 can be programmed to decode m...