MICROPROCESSOR AND MICROCONTROLLER

INTRODUCTION TO MICROPEOCESSOR

MICRO PROCESSOR AND MICRO CONTROLLER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The number of output pins of 8085 microprocessor are
A
40
B
27
C
21
D
19
Explanation: 

Detailed explanation-1: -Concept: There are total 40 pins in 8085 microprocessors out of which 27 are output pins, 21 are input pins and 8 pins (AD0-AD7) are shared between output and input signals.

Detailed explanation-2: -Definition: 8085 is an 8-bit microprocessor as it operates on 8 bits. The size of the address bus in 8085 is 16 bits. Thus, can address 64 KB memory. An 8085 microprocessor is an IC with 40 pins and operates with +5V power supply.

Detailed explanation-3: -Thus we can have 2 8 = 256 input ports and 256 output ports are possible in 8085-based microcomputer.

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