Tag: 65c02

Adapts a W65C816 processor to a 65C02-compatible socket while generating the missing clock and synchronization signals.

The board was out of stock on 2026-07-24. It adapts processor signals but does not provide an independent accelerator clock; the stated 14 MHz is a board capability, not a promise that an Apple IIc will run at 14 MHz. Confirm socket type, clearance, and host timing before installation.

Improved firmware for the Apple IIc and IIc Plus, offered as a current ROM programming service.

Infinity Products listed its ROM 4X and ROM 5X flashing service without an out-of-stock marker on 2026-07-24. The open firmware project had a current March 2026 release.

Upgrades an original Apple IIe with a 65C02 processor and the Enhanced IIe system and video ROMs.

The current page exposed selectable computer and video-ROM options with an Add to cart path on 2026-07-24. Select the 24-pin US or 28-pin European video-ROM option that matches the motherboard.

Period 3.6 MHz accelerator with a 65C02, 256K of high-speed memory, and optional 16-bit processor upgrades.

This is a period product obtained used and is distinct from TransWarp GS. Confirm the exact card revision, installed processor, diagnostics, and slowdown behavior before buying. The brochure says it works with most DMA cards, but a mixed vintage system still needs card-by-card verification.

Accelerates an Apple IIe to as much as 16.6 MHz and adds fast auxiliary and Slinky memory.

The product page offered an Add to Cart path on 2026-07-24. Software with cycle-sensitive timing may need the speed reduced; confirm processor, memory configuration, and slot use before ordering.

Replaces a failed Commodore PET motherboard with a modern 32 KB board supporting selectable 40- and 80-column modes, several BASIC versions, and original PET interfaces.

Tynemouth Software's active Tindie listing offered revision 1.84B as either a through-hole self-assembly kit or a built and tested board on 2026-07-27. International buyers are instructed to contact the seller for a shipping quote.

Provides hardware-assisted assembly-language tracing and debugging for the Apple IIe and Apple IIgs.

A2Heaven showed two Apple IIe firmware options and one Apple IIgs option in stock on 2026-07-24. ReActiveMicro also exposed assembled and kit selectors for its licensed reproduction. Select the correct DDT8 or DDT16 firmware; IIgs use requires the appropriate support logic.

Period 5 MHz 65C02 CPU replacement for the Apple II, II Plus, IIe, and IIc.

This is a period upgrade obtained used. The floppy-controller slot must run at 1 MHz or a diskette can be damaged; slots 5 and 6 default to 1 MHz, while other slots default to full speed. Slow DMA and some CP/M cards may need additional slowdown settings. Do not cache Apple SCSI, RamFactor, bank-switched ROM, or other hardware that the manual excludes. Installation requires removing a socketed CPU, and an Apple IIc must be disassembled.