Programming instructions

4000 Series ICs
 National Instruments Corporation 7-41 Multisim Component Reference Guide
BCD counter truth table:
7.2.79 4519 (Quad Multiplexer)
The 4519 device provides four multiplexing circuits with common select inputs (SA, SB).
Each circuit contains two inputs (An, Bn) and one output (On).
7.2.80 4520 (Dual Binary Counter)
The 4520 device is a dual 4-bit internally synchronous binary counter.
CP0 CP1 MR MODE
·10 COUNTER
ADVANCES
0‚0 COUNTER
ADVANCES
‚ X 0 NO CHANGE
X · 0 NO CHANGE
· 0 0 NO CHANGE
1 ‚ 0 NO CHANGE
X X 1 O0 TO O3 = LOW
ComponentRef.book Page 41 Thursday, December 7, 2006 10:12 AM