Tri-State logic devices--

Tri-State logic devices-

an essentials for proper functioning of bus-oriented system in which same bus line are shared by several components

Tri-state Inverter-

                                                                               

Buffer is used primarily to increase the current driving capability of logic circuits. It is commonly used to increase the capability of data & address bus . Ex. of tri-state buffer-1) IC 74LS244 ---> Octal Buffer

                                                                                                       2)IC 74LS240 etc. LS-low power schottky TTL.