Logic / Digital Design Includes:
Logic gate types Logic truth table How to convert NAND / NOR gates with inverters RS Flip-Flop Edge triggered RS Flip-Flop Programmable inverter D-type frequency divider
It often happens on a logic circuit board that an NAND gate and a few inverters may be available, whereas in reality an NOR function is required. If this occurs then all is not lost. It is still possible to create an OR function from an AND / NAND gate and inverters, or an AND gate from a NOR / OR function.
The diagram below gives some of the conversions. As an example it can be seen that a NOR gate is the same as an AND gate with two inverters on the input. It is then possible to add inverters to create the function that is required.
These simple conversions can be used to save adding additional logic circuits into circuits. By using chips with spare gates, it is often possible to save adding additional chips, and thereby save cost and board space.
More Digital Logic and Embedded Topics:
FPGA programming Embedded systems How a computer works Logic circuit design basics Logic / circuit design guidelines
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