This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: 59mm: F/NHL
EﬁﬂLLJTxaxuj ECE 25] Au 2% FWAL EXAM
{closed book, 4single sided pagﬁ ufnutea allowed) 1. Convert ﬁle BCD number given below to octal and hexadecimal:
ﬁlll 111111 ”010.011! ﬂlﬂl (5PT.!) '7 612+?5‘ 5m. IJGGgricocafﬁ' WNWH
_7E; 55" 1 Li 3 C" " E 3!."
I L.
1’8 Ff
Tia llODEJI‘.{EJEp.Jf:lu
.51 : __ w
’3: ' 1 ’ “Ea” ~ L
Answer: _
Octal I H '3 O. (a
Haxadacmal 3 I E3 x g;
2. Add (8A)lﬁand{9?)lﬁ wiﬂmut converﬁngtodecimal: (Spa)
$53 HQ
=9? 7 3. Commathe ﬁmction f together withﬂm dun’t care conciitiﬂns d:
f (w,x,5r,z)= E m(ﬂ,3,4,ﬁ,?,9) , d (w,x,y,z)= E inﬁll] 1,12,13,14,] 5) rrvva: halal _[{j"?:‘
if!“ HI} a) Identify the aim ' Prime Implicimts. (13pm) 6593011 Elk In} Find a minimal smuofprodmts expression. (5 pm) 1t; bﬁgi +32 +102 4r? 5. 4. Cunsider the circuit given below. {a}W1iteequaﬁonsforthe outputs admsdljd: and 5d; hitermsufﬂminpmﬁﬁ, Kn, 1m,
x], 5'1. :1, 3r; x3, y; antic], a: nude; (19pm) My: xn 9 1 chngE95
51331: 33: G? L liftE321} EFLll
Evil, :.. :11 {'1} £31999 C2
”*3: “'5 a: 133mm 63 (h) Writﬁ equaﬁonsform, :2, maximum circuit do? (19pm
Cr": {1‘0 L_L]u SIS} + mica Jr {ch EliaJr S.
,{H;$S3+1rcr4{{fl&33\)rcr C L: X: jKjH23leﬂ ﬂmﬂjiyzgrfg ﬁrsri Thrs mm; mm; 2 mimmmmm
by {md’uﬁﬁ Hie Subﬁ‘aah' (113291.“ "3‘: nilHa 51:] {‘3 5‘3 :r 9:5 Him”Magi”; (if 333281;ij [ 6:! 33: C10 :4! J mﬂméx Fiaxyusa 1%.
E’ Limphixramkd j 3 (c) Calculaie the 01¢th value (5d; 5‘12, deSdu} for the input values: 33.X2.K1.x0= [1111
Y3.Y2,FLY0= ﬂlﬂl forbaﬂ13=ﬂ and S=1. (m pats.)
<5 ID S: 1
{Diff mgpjill',JI9:G II]
Lg JD  " " " L I: 0 :I U"‘*..___ 3; I!
GTE—é gig1w ' _ ‘5
king"
(3? iﬁﬁrrg 5. a}Const1uctthe state diagram fora Mealymnchine with one input X and one
output Z, whose output Z is l (coincident with the last {II in the input sequence)
whenever the input sequence Itllllll is reeeived. (10pm) V3 SE?" It’ll1"”:
SI ;  NM
52 ID 0/0 2" Hit} r';"1.t
H'Cfp' limit“ [1) Consmtct the state table for the state diagram you constructed in La). (10pm) ”1'91:th Klein w : {3, Jt t
_. _ i——v—— —
 .__"
u'ﬂ in a' D " 5.x] I ll
3] C 'r ’3' _—‘r ’3
.4 f
" a. if U "’
. r.
: p 3 r"" 2' O 1‘1]; D
f 5‘
all] 34': ,r I JIJ D c) How many flipﬂops would you need to implement this sequential machine? Show thestatetable with binary codes assigned to the state: (5 pm) '3 T7154:
pm 5"
___§'?_!’h.’19
in U Ii“? (93W 90 VILL {j W
t. L: c e ascr'jnnWf“
a? L" 31:]
‘3 c r
m a
H5 9'
H 63 If. ti. You are to: design a counter, using J—K ﬂipﬂops, that wants in the following sequenee:
t} 42—24 4’6 :=t} ._ a) Construct the state table and determine the values for J, K inputs of the ﬂipﬂops.
(MPH) b} Derive the equations for the ﬂipﬂap inputs. {13pm} IIIIII} 'if} i
M “—13 'II— T": D. " sz JD: 0
(1 I ﬁt 0 I \K I.l y! i
' a.”
GD . __ _, r". f .
f_‘“'{\~ I _ _ . Till—I. KU—  {0
I???”  I. 5; J '. x“ a
"""ee 4%” ' *4 _.i
q :I‘L i J k .9 , it i
IL  ...
View
Full Document
 Winter '08
 Staff

Click to edit the document details