Logic gates ICs

Logic ICs

Fig. 2.1.1 illustrates a selection of the basic logic gates that are available from a number of manufacturers in standard families of integrated circuits. Each logic family is designed so that gates and other logic ICs within that family (and other related families) can be easily combined, and built into larger logic circuits to carry out complex functions with the minimum of additional components.
Typically, standard logic gates are available in 14 pin or 16 pin DIL (dual in line) chips. The number of gates per IC varies depending on the number of inputs per gate. Two−input gates are common, but if only a single input is required, such as in the 7404 NOT(or inverter) gates, a 14 pin IC can accommodate 6 (or Hex) gates. The greatest number of inputs on a single gate is on the 74133 13 input NAND gate, which is accommodated in a 16 pin package.

Data Sheets

7400 Quad 2 input NAND gates
7402 Quad 2 input NOR gates
7404 Hex NOT gates (Inverters)
7408 Quad 2 input AND gates
7432 Quad 2 input OR gates
7486 Quad 2 input XOR gates
747266 Quad 2 input XNOR gates
74133 Single 13 input NAND gate