Nand Gate Diagram. That s fine for the nands that you re using to perform and functions but the rightmost nand in that diagram is actually being used to perform an or function. The standard 4000 series cmos ic is the 4011 which includes four independent two input nand gates.
What is a nand gate nand logic. Let s take a look at the symbol and the truth table. So with two buttons we can realize the truth table of nand gate.
The boolean expression for a logic nand gate is denoted by a single dot or full stop symbol.
In the last figure in max s article each nand gate is drawn as an and with inverted output. These devices are available from most semiconductor manufacturers such as fairchild semiconductor philips or texas instruments. In all the other cases its output is high. So when the button is pressed the corresponding pin of gate goes high.
