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Apr 27th
2011

SR Latch built with RTL

I just felt like experimenting with Resistor Transistor Logic (RTL) today. It's made up of two NOR gates connected as a latch.

Here's the schematic for this simple latch:

This is the real deal wired up on a veroboard:

And here it is in action (the other 6 LED's are all from another project). The right (lit) LED is the inverted output Q, and the left is the positive output Q: