Programming instructions

TTL
Multisim Component Reference Guide 6-66 ni.com
NAND gate truth table:
6.4.11874xx39 (Quad 2-In NAND (OC))
This device contains four independent 2-input NAND gates. For correct performance, the
open collector outputs require pull-up resistors.
Logic function:
NAND gate truth table:
6.4.11974xx390 (Dual Div-by-2, Div-by-5 Counter)
The 74390 device incorporates dual divide-by-two and divide-by-five counters.
ABY
001
101
011
110
Y = AB
ABY
001
101
011
110
ComponentRef.book Page 66 Thursday, December 7, 2006 10:12 AM