Tri-State Buffer Quiz and Flashcards in Digital Electronics

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is another name for a Tri-State buffer?

Universal Buffer

Multi-State Buffer

Three-State Buffer (correct)

Bi-State Buffer

What is the function of the second input in a Tri-State buffer?

It disconnects the output (correct)

It inverts the output

It gates the output

It amplifies the output

Why is high impedance state important in a Tri-State buffer?

To disable the output without affecting the circuit (correct)

To increase the speed of the circuit

To invert the output logic

To amplify the output signal

What is the purpose of an 'Output Enable' (OE) control input in a Tri-State buffer?

To control whether the output is active or in high-impedance state Signup and view all the answers

What is the function of the OE (Output Enable) input in the 74374 integrated circuit?

Tri-states the buffered output Signup and view all the answers

How are tri-state buffers used to resolve the issue with the basic memory element similar to a D latch?

To prevent data always being present on the input Signup and view all the answers

In a 4-bit memory register made up of latches, what does the RD signal control?

Output buffer Signup and view all the answers

What does an active low signal mean in the context of the WR signal used in the memory element solution?

Signal is active when low Signup and view all the answers

How does a bus function in a computer system?

Transmits bits between computer components Signup and view all the answers

What is the role of a control bus in a computer system?

Indicates timing and control functions between units Signup and view all the answers

Which type of memory is known for high-density storage at low power requirements by using charges on capacitors?

DRAM Signup and view all the answers

What distinguishes read-only memory (ROM) from read/write memory in terms of functionality?

ROM can only be read from, not written to. Signup and view all the answers

Which type of memory is characterized by its ability to retain data even when the power is turned off?

Flash memory Signup and view all the answers

What are the relative advantages of EPROM, EEPROM, and flash memory?

EEPROM can be electronically erased and reprogrammed in-circuit. Signup and view all the answers

What is the main purpose of semiconductor memories in a computer system?

To provide fast operation as the main memory Signup and view all the answers

How is a Memory Word defined?

A group of bits in a memory that represents instructions or data Signup and view all the answers

Which term is synonymous with the concept of 'Capacity' in memory terminology?

Density Signup and view all the answers

What is the significance of an 'Address' in a digital system?

It identifies the location of a word in memory Signup and view all the answers

How is the term 'Byte' defined in the context of memory systems?

A special term used for a group of eight bits Signup and view all the answers

In memory terminology, what does 'Density' refer to?

Another term for capacity; ability to store more bits in a given space Signup and view all the answers

Study Notes

Tri-State Buffers

Another name for a Tri-State buffer is a three-state buffer.
The second input in a Tri-State buffer is an enable input that allows the output to be high, low, or high impedance.
High impedance state is important in a Tri-State buffer as it allows the output to be disconnected from the input, preventing bus contention.
The purpose of an 'Output Enable' (OE) control input in a Tri-State buffer is to control the output of the buffer.
In the 74374 integrated circuit, the OE (Output Enable) input functions as a control signal to enable or disable the output of the buffer.

Memory Elements

Tri-state buffers are used to resolve the issue with the basic memory element similar to a D latch by allowing multiple devices to share a common bus.
In a 4-bit memory register made up of latches, the RD signal controls the reading of data from the memory register.
An active low signal, in the context of the WR signal used in the memory element solution, means that the signal is active or asserted when it is in the low state (0).

Bus and Memory

A bus in a computer system functions as a shared transmission medium that allows multiple devices to communicate with each other.
The control bus in a computer system plays a crucial role in managing the flow of data and instructions between different components.
Dynamic Random Access Memory (DRAM) is known for high-density storage at low power requirements by using charges on capacitors.
Read-only memory (ROM) is distinguished from read/write memory in that it can only be written once during manufacturing and can only be read by the computer.
Non-volatile memory is characterized by its ability to retain data even when the power is turned off.
EPROM, EEPROM, and flash memory are characterized by their ability to be reprogrammed, with EPROM requiring a UV light, EEPROM allowing for byte-level reprogramming, and flash memory allowing for bulk reprogramming.
The main purpose of semiconductor memories in a computer system is to provide a means of storing data and instructions.
A Memory Word is defined as a group of bits that are transferred and stored as a single unit.
The term 'Capacity' is synonymous with the concept of 'Size' in memory terminology.
An 'Address' in a digital system is a unique identifier that specifies the location of a memory cell or register.
A 'Byte' is defined as a group of 8 bits that are used to represent a character, number, or other type of data.
In memory terminology, 'Density' refers to the amount of data that can be stored per unit of area or volume.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on Tri-State Buffers in digital electronics with this quiz. Learn about the IEEE/ANSI symbol, control input, and the concept of 'high impedance' or 'Z'. Practice identifying the status of the buffer based on the control input and understand its significance in logic circuits.