Textbook & Lecture Note Mistakes Found by Students
1.Page 46: line 13, maxterm M3 is missing. Thanks to Sandy Liu.
2.Page 71 - In figure 3.9, there should be a 1 in the 1110 box of the map. 
Thanks to Matt Osborne.
3.Page 76 - In the second line of example 3.7, there should be a summation 
symbol for the sum of minterms in the boolean function F.Thanks to Matt Osborne.
4.In the textbook pg. 50, just below half of the page, it has F2 = 
x(y'+z)(x'+y+z'), but according to Figure 2-3(b), it should be F2 = 
x(y'+z)(x'+y+z). Thanks to Kelvin Lam.
5.There is a couple of misprints in example 2-4, pg. 47. Line 8 is missing the 
duplicate AB'C term that is mentioned on the next line. On line 11 the second 
minterm should be AB'C' (m4).Thanks to Craig Johnson.
6.pg 56, figure 2-7(c). The written function is incorrect. the first (DE') term 
should be (DE)'. (complement outside the parenthesis).Thanks to Craig Johnson.
7.pg. 106, problem 3-1, part d, ignore the S. Problem 3-4, replace x map w/ k 
map.Thanks to Ben Ellenberger. 
8.p.7 at the bottom: it should be 26153.7406 not 26153.7460 after the "=". 
Thanks to Niko Rebenich. 
9.p.63 references: Boole, G. 1854 (not 1954!) Check here: 
http://www-gap.dcs.st-and.ac.uk/~history/Bookpages/Boole9.gif. Thanks to Niko 
Rebenich.
10.p.88 schematics on the top: both are labeled with (a). Thanks to Niko 
Rebenich.
11.p. 121 second map on the top right: it should be C = xy + ... not S again. 
Thanks to Niko Rebenich.
12.pg. 67 example 3-1, it should be m4 + m6 = xy'z' + xyz' = xz'(y'+y) = xz' 
instead of m4 + m6 = xy'z' + xyz' = xz' + (y'+y) = xz'. Thanks to Kelvin Lam. 
13.on page 52, in table 2-8, for Boolean function F3=X, the comments should be X 
instead of X prime. Thanks to Sandy Liu.
14.In the lecture note 6, slide No.27 assign= A| (B&C) | (~B&C), it should be 
assign= A| (B&C) | (~B&D), since it corresponds to the function x= A + BC+B'D. 
Thanks to Sandy Liu.
15. Example 2-1 on page 43. In the paragraph below the example it states: 
"Functions 1 and 2 are the dual of each other." They are not the dual of each 
other. The true dual of 1 is x' +xy.Thanks to Chris Garand.
16.Error on slide 15 of lecture 6 notes. It says that "two input XOR is 1 if 
inputs are similar". Should be "two input XOR is 0 if inputs are similar". 
Thanks to Matthew Edwards.
17.In lecture note 5, slide No.23, NOR implementation rules, "1. Convert all ORs 
to NAND gates-----", it should be "convert all Ors to NOR gates", same as in 
rules 2 and 3. Thanks to Fiona Warman. 
18.page 133. the line above the equation "Xi = AiBi + Ai'Bi' for i = 0,1,2,3" in 
the middle of the page, the "exclusive-OR" function should change to 
"exclusive-NOR" function since the equation is corresponding to XNOR function. 
Thanks to Ronnie Lai. 
19.On page 181 in Figure 5-15 I believe there should be a line connecting the 
AND gate to D input on flip-flop with output B, but there is none. Thanks to 
Kyle Ford. 
20. p 210, table 5-14, row 7, TA2 TA1 TA0 should be 001. 
21.On page 183, under the section "State Diagram," paragraph 2, should read: 
"... the state diagram of Fig 5-16 clearly shows that, starting from state 10" 
instead of "starting from state 00." If you look at the diagram, an input of 1 
at state 00 would transfer to state 01 instead of maintaining the state as the 
text suggests. Thanks to Jim Barlow. 
22.(p.505, Question 5-10c). B( t + 1) = x A' B' + x' A' B + y' A' B should 
correct to B( t + 1) = x A' B' + x' A' B + y A' B. Thanks to Ronnie Lai. 
23.On page 227 it says "this causes a shirt-right operation, with the serial 
input transferred into flip-flop $A_4$", but there is no flip-flop $A_4$. It 
should say flip-flop $A_3$. Thanks to Kyle Ford. 
24.On page 140 Figure 4-22, in the K-map for y, the 10 column should all be 0 
instead of 1. Thanks to Kelvin Lam. 
25.For the answer provided in the text for problem 5-13b, the last input should 
be 1 instead of 0. Thanks to Tracy Wong. 
26. p. 138: It should read at the begining of the page: "minterms" not "minterm" 
or at least "minterm(s)" p. 147: It should read in the 5th line: "enabled". 
Thanks to Niko Rebenich. 
27. On page 271, second paragraph-eighth sentence tells the reader to refer to 
the Fig 6-1 for the array logic convention when it should really be Fig 7-1. 
Also on page 285, the last sentence of the first paragraph should say that the 
three-state buffer is controlled by the OE input instead of EO input. Thanks to 
Tracy Wong. 
28. On page 272 of the textbook in the second sentence it should read: "A 
programmable connection between 2 lines is logically equivalent to a switch that 
can be altered to either be closed...". Thanks to Kyle Ford. 
29.on page 227, corresponding to figure 6-7 on page 226, "When S1S0=10, a 
shift-left operation resuits, with the other serial input going into flip-flop 
A1". It should be "into A0". Thanks to Sandy Liu. 
30.On page 506, in the solution to question 6-24b. The answer should be Tc=AC + 
A'B'C' not Tc=AC +A'B'C. Thanks to Chris Garand.