Status: Released - see https://github.com/etomuc/CPC6128_iRAM-640
== currently in development ==
=== CPC iRAM/1088 ===
* perfectly fits into a CPC 6128, even with socketed ROM or RAM. In Schneider CPC 6128 the metal shielding needs to be removed or altered.
Status: Finished, will be released Released - see https://github.com/etomuc/CPC6128_iRAM-1088 == currently in late 2025development ==
=== CPC iRAM/1024 ===
* easy to assemble, all through-hole components
Status: Finished, final PCB design will be tested, will be released in late 2025 === CPC iRAM/1024s === * much smaller than iRAM/1024, more similar in size to iRAM/640* for CPC 464 and 664* single 1MB SMD SRAM, upgrade to 1024K* [http://norecess.cpcscene.net/advancedmemoryusage.html C3 RAM banking] supported* easy to assemble, mostly through-hole components but one SMD SRAM Status: working prototype assembled, release unclear
== considered ==
* 1Mb upgrade for Plus series
* less DIY friendly, probably needs more complex CPLDs (ATF150xATF1504)
Status: very early stage, still considering if it's feasible
* 512K upgrade for GX4000
* less DIY friendly, probably needs more complex CPLDs (ATF150xATF1504)
Status: just an idea
== abandoned ==
=== CPC iRAM/640s ===
* minified iRAM/640
* for CPC 6128
* size just a tiny bit bigger than Z80 CPU socket
* TSSOP SMD components below Z80
* requires good soldering skills and special tools to program SMD CPLDs
Status: fully designed, abandoned as it offers no advantage over DIY friendly version and would only benefit commercial sellers
(Hint: Lotharek offers a similar expansion commercially for a good price)
=== CPC iRAM/1024s ===
* smaller than iRAM/1024, more similar in size to iRAM/640
* for CPC 464 and 664
* single 1MB SMD SRAM, upgrade to 1024K
* [http://norecess.cpcscene.net/advancedmemoryusage.html C3 RAM banking] supported
* easy to assemble, mostly through-hole components but one SMD SRAM
Status: working prototype
=== CPC iRAM/576 ===