MICROPROCESSOR AND MICROCONTROLLER

IO AND MEMORY INTERFACE

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A three state gate defined as:
A
Analog circuit
B
Analog fundamentals
C
Both a&b
D
Digital circuit
Explanation: 

Detailed explanation-1: -Tri-state gates have additional circuitry via which the gate outputs can be enabled or disabled. This is very useful in digital systems where devices communicate via common wires called busses. Only one device can talk at a time; the others are disabled.

Detailed explanation-2: -Tristate gate is a logic inverter, which has a tristate output. This digital circuit can be electronically connected or disconnected from the output circuit. In other words we can say that the circuit can be electronically switched “ON” or “OFF” by an external control.

Detailed explanation-3: -A three-state, or Tri-State™, output has three electrical states: One, zero, and “Hi-Z, ‘’ or “open.” The hi-Z state is a high-impedance state in which the output is disconnected, leaving the signal open, to be driven by another device (or to be pulled up or down by a resistor provided to prevent an undefined state).

Detailed explanation-4: -tri·state ˈtrī-ˈstāt.-ˌstāt. : of, relating to, or consisting of three adjoining states.

There is 1 question to complete.