Programming instructions

TTL
Multisim Component Reference Guide 6-12 ni.com
6.4.22 74xx126 (Quad bus BUFFER w/3-state Out)
This device contains four independent BUFFER/non-inverting gates with 3-state outputs.
BUFFER gate truth table
The output of the bus buffer is disabled when G is low.
6.4.23 74xx13 (Dual 4-In NAND (Schmitt))
This device is a dual 4-input Schmitt-triggered NAND gate.
6.4.24 74xx132 (Quad 2-In NAND (Schmitt))
NAND gate truth table:
6.4.25 74xx133 (13-In NAND)
Logic function:
AGY
111
010
X0Z
Z = high impedance
ABY
110
0X1
X01
VT+ = 1.8V (at 5 Volt test condition)
VT- = 0.95V (at 5 Volt test condition)
Y = ABCDEFGHIJKLM
ComponentRef.book Page 12 Thursday, December 7, 2006 10:12 AM