Homework 3 for ECE 109 / CSCI 255

Due date

This assignment is due in class or to my office assistant in RH 215 by 4:30 pm on 5 March.

Problem 1

How many select lines are needed for a 16-input MUX?

Problem 2

How many select lines are needed for a 32-output decoder?

Problem 3

Describe how the three input Boolean function X ~Y + Y Z can be implmented with a single three-input MUX.

Problem 3

Describe how the three input Boolean function X ~Y Z + ~X Y Z can be implmented with a 3-input decoder and a single OR gate.

Problem 5

A 2 MB memory has a 32 bit wordsize. How many 32 bit words can be stored in this memory?

Problem 6

A 2 MB memory has a 32 bit wordsize. How many bits are required to address this memory?

Problem 7

A computer memory has a 32 bit words stored in 64k locations. What is the size of this memory in bytes?