19 STAR*TECH Journal APRIL 1982
GREMLIN/SEGA'S
DIGITAL TECH TEST (PART 4)
10) What output will be selected
in the following circuit?
ENABLE
Yo
Y1
Y2
Y3
y4
1
A
1
B
0
C
Ys
Ys
Y1
11) What will be the output of
the following circuit?
0
Do
0
D1
0
D2
1
D3
1
D4
0
D5
0
Ds
1
~
y
OUTPUT=_
C
B A
1
0
Part 3 Answers
8) QA = 1, QB = 1, QC
QG = 1, QH = 1
= 1, QD = 0, QE = 0, QF = 0,
1
9) 01 = Hi-Impedance, 02 = 1
PART 4 ANSWERS NEXT MONTH
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