Programming instructions

TTL
Multisim Component Reference Guide 6-58 ni.com
OR gate truth table:
6.4.10174xx33 (Quad 2-In NOR (OC))
This device contains four independent 2-input NOR gates. For correct performance, the open
collector outputs require pull-up resistors.
Logic function:
NOR gate truth table:
6.4.10274xx350 (4-bit Shifter w/3-state Out)
This device shifts 4-bits of data to 0, 1, 2, or 3 places under control of two select lines.
ABY
000
101
011
111
Y = A+B
ABY
001
100
010
110
ComponentRef.book Page 58 Thursday, December 7, 2006 10:12 AM