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 oli
Dang,Nepal
A tristate device is a device that has three states instead of two. The normal states are low and high, where the output is pulled down or up by turning on one of the two output transistors. The third state is floating, where neither transistor is turned on. Tristate devices are useful in a bus design where, for instance, more than one device can drive a data bus, but only one at a time.
Tristate devices are used in bus based systems to allow multiple bus drivers to control the bus, each at different times, while all the rest are allowed to read the bus. Only one device can drive the bus at any one time. All the others "tristate" or float, so they neither drive the bus low nor high.
The "tristate area" of New York consists of New York, New Jersey and Connecticut.
In Microprocessor based system devices are connected n parallel through the bus in this situation it is required that one device is interact with the bus at a time .If more than one device make communication wid bus then more then one signal is places that they will produce damaging current known as Bus Contention.To avoid bus contention tristate buffer are placed between buses and peripheral...
what dose device mean
Tristate University
Tri-state
The tristate area usually refers to the area where three states meet, such as New York, New Jersey, and Connecticut. The population and size can vary depending on the specific region being referenced within those states.
A device that accomplishes its purpose electronically.
Tristate Trojans representing Vermont, new Hampshire, and Maine
fourth
a digital signal that can disconnect from the line it is driving to let something else drive it