Monday, 6 April 2015

GAL-Programmer finished

My GAL-programmer is ready to burn!
I made a schematic and a 10x8cm single-sided PCB layout with Eagle CAD.
There are sockets for the 16v8 / 22v10 DIP and a wide 24-pin-socket for the 22v10-PLCC-adapter.
I added a 74HCT245-buffer for better printer-port voltage compatibility.
The 15V-burning-voltage is provided by a TL497 switching regulator.

Thanks to ChaN (1997/1999): Simple GAL-Programmer

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