Programming instructions

Tiny Logic
 National Instruments Corporation 7-49 Multisim Component Reference Guide
4-bit comparator truth table:
7.3 Tiny Logic
Tiny Logic is a line of single function digital CMOS chips which are intended for applications
which require only a single gate to complete a design.
7.3.1 NC7S00
This device contains a single 2-input NAND gate.
Logic function:
COMPARING INPUTS
CASCADING
INPUTS
OUTPUTS
A3, B3 A2, B2 A1, B1 A0, B0 IA>B IA<B IA=B OA>B OA<B OA=B
A
3
>B
3
X X X 1XX100
A
3
<B
3
X X X XXX010
A
3
=B
3
A
2
>B
2
X X 1XX100
A
3
=B
3
A
2
<B
2
X X XXX010
A
3
=B
3
A
2
=B
2
A
1
>B
1
X 1XX100
A
3
=B
3
A
2
=B
2
A
1
<B
1
X XXX010
A
3
=B
3
A
2
=B
2
A
1
=B
1
A
0
>B
0
1XX100
A
3
=B
3
A
2
=B
2
A
1
=B
1
A
0
<B
0
XXX010
A
3
=B
3
A
2
=B
2
A
1
=B
1
A
0
=B
0
X01001
A
3
=B
3
A
2
=B
2
A
1
=B
1
A
0
=B
0
100100
A
3
=B
3
A
2
=B
2
A
1
=B
1
A
0
=B
0
X10010
A
3
=B
3
A
2
=B
2
A
1
=B
1
A
0
=B
0
X11011
A
3
=B
3
A
2
=B
2
A
1
=B
1
A
0
=B
0
000000
1 = HIGH state (the more positive voltage)
0 = LOW state (the less positive voltage)
X = state is immaterial
Y= AB
ComponentRef.book Page 49 Thursday, December 7, 2006 10:12 AM