ECE 85 Sample Quiz #7 Spring 2015
1.
What is the binary representation of the letter J (upper case) with ODD parity
2. What is the binary representation of the punctuation letter % with EVEN parity
3. You are intent on interconnecting two large computers

ECE 85 Sample Quiz #9 Spring 2015
1. Show the design of a 555-based Astable Multivibrator with the following
characteristics:
Frequency=10kHz
Duty Cycle = 65%
2.
Show the design of a 74121-based one-shot with a positive trigger whos output lasts
for 5mS o

ECE 85 Sample Quiz #8 Spring 2015
1.
How would an 8 bit computer store the following numbers in memory?
a. -1
b. +125
2. Show the gate design of a two bit adder. You are allowed to use any of the six gate types.
3. The following two signed integers are fo

ECE 85 Sample Quiz #10 Spring 2015
1. Complete the timing Diagram for the following Flip Flop by showing the output Q*. Assume
Q* starts in the 0 state.
2.
Complete the timing Diagram for the following Flip-Flop by showing the output Q. Assume
Q starts in

ECE 85 Sample Quiz #6 Spring 2015
1.
You have been assigned a project to implement 16 Boolean combinatorial equations in
a single PLD. The equations utilize from 2 variables to 6 variables. What is the
minimum size PLD required (M X N X R)?
2.
Implement t

ECE 85 Sample Quiz #12 Spring 2015
For any of the problems which require device timing use the following parameters:
Gates /Inverters
Gate Propagation Delay 6ns (all gates except inverter)
Inverter Propagation Delay 5 ns
Flip-Flops (any type)
Propagation

ECE 85 Lecture 18-19
Attendance
Review of Lecture 17
Characteristic Tables
Latches
Flip-Flops
Summary
Homework
Review of Lecture 17
Simple circuits with memory are called
Multivibrators. They are classified depending
upon the number of output states whic

ECE 85 Lecture 20
Attendance
Review of Lecture 18-19
State Machines and Classification
Synchronous and Nearly Synchronous State
Machines
Input Synchronization and Debounce
Counters
Summary
Homework
Review of Lecture 18-19
Latches
S*-R*
S-R
Gated S-R

ECE 85 Lecture 15
Attendance
Review of Lecture 14
Arithmetic Circuits
Comparators
Summary
Homework
Review of Lecture 14
Representation of integers and
signed integers in Binary
Binary Arithmetic
Overflow
Arithmetic Circuits
Since the computer stores a

ECE 85 Lecture 17
Attendance
Exam Review
Review of Lecture 15
The concept of a state
Multivibrators
The Astable Multivibrator
The Monostable Multivibrator
Summary
Homework
Review of Lecture 15
Half and Full Adder Circuitry
Ripple and Look-Ahead Carry
T

ECE 85 Lecture 2
Number Systems
Positional Number Systems
Functions of Numbers
The systems we will use
Number System Conversion
Numeric Codes
Summary
Homework
Number Systems
A Number System is a collection or row of
symbols used to represent a Number. Th

ECE 85 Sample Quiz #11 Spring 2015
1.
Classify each of these state machines as 1) Synchronous; 2)Asynchronous or 3)Nearly
Synchronous:
a. The Headlight control system in your car;
b. Your clock radio
c. An electric controller for an entrance gate
d. The p