Archive for the ‘Retro Innovations’ Category

RETRO Innovations (JIM Brain) – 6540 Rom Adapter & Short IEC Cable

August 23rd, 2013 No comments

I bought a few things from the site Retro Innovations of Jim Brain.

6540 Rom Adapter:

  • This PCB converts the MOS 6540 DIP pinout to a JEDEC standard 2764-27512 EPROM pinout.  The optional 5 upper address lines are available via pads complete with provision for pullup resistors (10K).

Commodore IEC Disk Drive Cable:

Retro Innovations ROM-el Atmel 49F001AN Adapter

May 7th, 2011 5 comments

Retro Innovations ROM-el:

To program the ROM-el chip by Retro Innovations you need a Adapter. The ROM-el chip uses a Atmel flashrom AT49F001AN (128K x 8) and we must build an adapter that converts the pins of the 2364 PROM Commodore 64 Kernel, which is used in ROM-el chip, to the original state of the chip AT49F001.

After this work, you can use the Willem programmer to program the FlashROM with one or more C64 kernel.

Retro Innovations Zoom Floppy & ROM-el

April 20th, 2011 No comments
Retro Innovations Zoom Floppy & ROM-el and IEEE-488 connector.


ZoomFloppy is an USB device for connecting Commodore disk drives to your PC. The ZoomFloppy is an improvement based on XU1541 from Till Harbaum.

Nate Lawson and Jim Brain teamed up to produce a professional product. This controller will support IEC drives, IEEE-488 drives and a user-port connection for parallel.

source: ieee488 beta software docs & firmware