How tri state device can be used to control the direction of a data bus?

Those types of digital devices having three logic states .they are high impendence, 0(low level) and 1(High level). they are used to share output line in multiplexed system.Amar oliDang,Nepal

Tri-state devices have three output modes; low, high, and open. They are essential in a bus oriented system because several can be connected together and, so long as only one at a time is turned on,...

tri state means three states of operation. usually it is used on data buss whereby data is transferred to peripheral devices called I/O the transfer is 0 or 1 on a try state device if not zero or one...

A tri-state bus is a collection of pins (a bus) that supports three states, high, low, and floating/input. This is commonly used to implement bi-directional data flow.

Multiplexing of the data and address buses is done to reduce the pin count on the microprocessor chip. The address information is emitted at the beginning of a memory cycle, and external logic is...