When making a digital circuit, generally, ready made ICs are used.
On these pages, I will introduce a way of making Original ICs.
In my way, CPLD(Complex Programmable Logic Device) is used.
CPLD is sold from several companies. In my pages, CPLD (XC9500 series) of Xilinx Inc. is used.
The XC9500 series has a lot of kinds. In my page, I take up four kinds from them.
They are XC9536-PC44, XC9572-PC44, XC9572-PC84 and XC95108-PC84.
These devices are the type which uses PLCC socket and can mount
on the universal printed board. The design tool (the
software) is free and I could acquired the
device. This is the reason that
I am using them.
Because I am describing while studying, there seems to be mistakes in the contents.
Do at your own risk.