Programming instructions

TTL
Multisim Component Reference Guide 6-72 ni.com
6.4.12574xx44 (Exc-3-Gray-to-Decimal Dec)
This excess-3-gray-to-decimal decoder consists of eight inverters and ten four-input NAND
gates.
Excess-3-gray-to-decimal decoder truth table:
6.4.12674425 (Quad Bus Buffer with 3-State)
This bus buffer has 3-state outputs that, when enabled, have the low impedance characteristics
of a TTL output and additional drive capability at high logic levels to permit driving heavily
loaded bus lines without external pull-up resistors.
6.4.12774426 (Quad Bus Buffer with 3-State)
This bus buffer has 3-state outputs that, when enabled, have the low impedance characteristics
of a TTL output and additional drive capability at high logic levels to permit driving heavily
loaded bus lines without external pull-up resistors.
EXCESS-3-GRAY
INPUT
DECIMAL OUTPUT
No.DCBA0123456789
000100111111111
101101011111111
201111101111111
301011110111111
401001111011111
511001111101111
611011111110111
711111111111011
811101111111101
910101111111110
INVALID
10111111111111
10011111111111
10001111111111
00001111111111
00011111111111
00111111111111
ComponentRef.book Page 72 Thursday, December 7, 2006 10:12 AM