Programming instructions

4000 Series ICs
 National Instruments Corporation 7-15 Multisim Component Reference Guide
7.2.28 4023 (Tri 3-In NAND)
This device contains three independent 3-input NAND gates.
Logic function:
NAND gate truth table:
7.2.29 4024 (7-stage Binary Counter)
The 4024 is a 7-stage binary ripple counter. A high on MR (Master Reset) forces all counter
stages and outputs low. The 4024 counts from 0 to 15 in binary on every negative (high to
low) transition of the clock pulse.
7.2.30 40240 (Dual Octal Inv Buffer)
The 40240 device is a dual octal inverting buffer with 3-state outputs.
O= I
1
+I
2
+I
3
I
1
I
2
I
3
O
1
0001
1001
0101
1101
0011
1011
0111
1110
ComponentRef.book Page 15 Thursday, December 7, 2006 10:12 AM