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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.
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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.
What is the tristate area of New York?
The "tristate area" of New York consists of New York, New Jersey and Connecticut.
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.
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 tristate bus and how it used in microprocessor?
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...
Where did James Wright the Inventor of silly putty attend college?
Tristate University
Do Phineas and fern live in tristate area or dry state area?
Tri-state
How tristate devices operate?
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 would be a great name for a new basketball association?
Tristate Trojans representing Vermont, new Hampshire, and Maine
What does a tristate signal in electronics signify?
a digital signal that can disconnect from the line it is driving to let something else drive it
Whats the largest Walmart stores in the tristate area lower michigan (Im located in Hillsdale,MI)?
fourth
What is active pull up in TTL NAND gate?
All standard TTL devices use a two transistor "totempole" output, one transistor provides an active pull down and the other an active pull up. Only one of these transistors is on at a time and one or the other is always on. Open collector TTL devices omit the active pull up transistor so that several outputs can be "wired" together and an external resistor provides a passive pull up. The only problem with this is the risetime of a passive pullup is much longer than the risetime of an active pull up, making the circuit slower. Tristate TTL devices have the same two transistor "totempole" output as standard TTL devices, but the circuits that control these transistors are more complex allowing a "third state" in which both transistors are turned off, leaving the output of the device floating. This allows many tristate TTL devices to be connected to a single line with only one actually driving it at a time (preventing conflicts with one device pulling up and another pulling down).
