Programming instructions

74xx
 National Instruments Corporation 6-67 Multisim Component Reference Guide
BCD count sequence truth table:
Notes:
Output QA is connected to input B for BCD count.
Bi-quinary truth table:
Notes:
Output QD is connected to input A for bi-quinary.
COUNT
OUTPUT
QD QC QB QA
0 0000
1 0001
2 0010
3 0011
4 0100
5 0101
6 0110
7 0111
8 1000
9 1001
COUNT
OUTPUT
QA QD QC QB
0 0000
1 0001
2 0010
3 0011
4 0100
5 1000
6 1001
7 1010
8 1011
9 1100
ComponentRef.book Page 67 Thursday, December 7, 2006 10:12 AM