Aug 15, 2011 - The Willem Programmer can handle a lot more devices than my trusty. Containing a programmer marked '2010 PCB 50', a parallel cable, a USB. It came with Windows software but I don't have anything with Windows on it. The application note includes all the details (and some interesting examples.). GQ Programmer Software version: 7.11. Download Willem EPROM Programmer + schematic + layout - Find where to buy EPROM 27C64, 27C128, 27C256, 27C512, 27C010, 27C020, 27C0 M27C1001, M27. This new hardware version (PCB50) is is more STABLE than all old PCB version and increase supports 3V3-3V6 SPI Flash devices.