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Computer chips are said to be tri-state when the bit of the output can be "ON", "OFF" or "don't care".
Tri-state chips can connected in parallel making it possible for two or more chips to control the same output line. When that occurs, the chips that are disabled do not affect the line.
What else can I help you with?
What is a tristate devices?
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.
How tristate devices are used in bus base system?
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.
How tristate occurs in a microcontroller?
Tristate in a microcontroller occurs when a pin is configured to operate in a high-impedance state, effectively disconnecting it from the circuit. This is typically achieved by configuring the pin as an input or by setting it to a special mode that allows it to neither drive a high nor a low signal. This state is useful for preventing bus contention when multiple devices share the same communication lines, allowing only one device to drive the line at any given time. In this way, tristate control is essential for managing data flow in multi-device environments.
What is the tristate area of New York?
The "tristate area" of New York consists of New York, New Jersey and Connecticut.
Do dual band routers allow g WiFi to operate at g speeds and n to operate at n speeds simultaneously?
A dual band router will allow 802.11g devices to operate on the 2.4 GHz band while allowing 802.11n devices to operate at their maximum speed on the 5GHz band. Both the G and N devices will be able to operate simultaneously.
What are tristate lines of dma 8257?
Tristate lines in the context of the DMA 8257 refer to the control lines that can be in one of three states: high, low, or high impedance (floating). This high impedance state allows multiple devices to share the same bus without interfering with each other, as it effectively disconnects the device from the bus when it is not actively transmitting data. The tristate feature is crucial for managing data transfers between the CPU and peripherals in a system, enabling efficient communication and minimizing conflicts.
What layer of OSI model is multipurpose devices on?
If devices are within the same network then they operate at the second layer.
Switch and a router are they like devices?
Yes, they are devices that operate at different layers of the OSI model for networking.
What is know as tristate of 8086?
The tristate of the 8086 microprocessor refers to the three possible states of its output pins: high (logic 1), low (logic 0), and high-impedance (high-Z). In the high-impedance state, the output effectively disconnects from the circuit, allowing multiple devices to share the same bus without interference. This capability is crucial for bus-oriented architectures, enabling efficient data communication between the CPU and other components. The tristate output is essential for managing control signals and data transfer in complex systems.
What devices instrument that use electromagnets to operate?
Some devices that use electromagnets to operate include MRI machines, transformers, electric motors, and loudspeakers. Electromagnets are used in these devices to generate magnetic fields that can be controlled and manipulated to perform specific functions.
Which hardware devices can operate at any layer of the OSI model?
Gateway
Do devices operate on power or current?
Electrical devices use power to operate, but power does not exist without current. Alternately, if current is flowing, power is being stored or used by some electrical device.
