ITT - Index of

1119301
MSI One-Of-Ten Decoder
BCD CODE
Figure 10 -
DECODE ANY BCD CODE
)(3
Ao A1 A2 A3
1/10 DECODER
9301
0 123456789
0123456789
I
DECIMAL
DIGIT
Ao A1 A2 A3 0
1/10 DECODER 1
9301 2
3
0 123456789
4
5
6
7
8
9
10 II 12 13 14 15 16 17 18 19
8421 5421
OUTPUTS
Decode any BCD code using two 9301 elements. Any 4 bit BCU coDe may be decoded
by selecting outputs as shown in the table.
OUTPUT SELECTION
BCD CODE
EXCESS
3
0,18 0,18 3
1,19 1,19 4
2 2 5
3 3 6
4 4 7
5 8,10 8,10
6 9,11 9,11
7 12 12
8,10 13 13
9,11 14 14
4221
0,18
1,19
2
3
6
9,11
14
15
16
17
Figure 11 -
DIGITAL DEMULTIPLEXER
Data may be routed from a source to any of 8
outputs by addressing that output. All
non-addressed output remain high.
Complements of outputs 0 and 1 are available
at outputs 8 and 9 respectively.
0123456789
ADDRESS
ABC
0 a a
I 0 0
0 I a
I I 0
a 0 I
I 0 I
0 I I
I I I
OUTPUT
LINE
0
I
2
3
4
5
6
7
INPUT
Each output of the ITT9301 may be considered
a minterm of the input code. Several sums of
minterms may be generated economically
using discrete IC gates and one ITT9301
decoder.
Figure 12 -
A~
B~
Q=ABcD+ABcD+ABcD+ABcD c __ ---'I ~
~------~P=ABcD+ABcD 0 ~
+ABCD+ABCD
MINTERM GENERATOR
3-320
OU:rPUTP~
OUTPUTQ __ ~