#mcp795

Adventures with real-time clocks - part 1 - adding an RTC to my homebrew computer.

So I decided that I’d like to add a real-time clock (RTC) to the Zolatron project because … why not? Should be easy, I thought. Lots of people have done it. All I need is the right chip. Maybe that’s where I made my mistake. MCP795W20 RTC pinout As it turned out, for some reason, I already own three copies of the Micrcship MCP795W20. Why I have these and how long I’ve had them are mysteries to…