Programming instructions

TTL
Multisim Component Reference Guide 6-86 ni.com
Bistable latch truth table:
6.4.15074xx76 (Dual JK FF (pre, clr))
This device contains two independent J-K flip-flops with individual J-K, clock, preset, and
clear inputs.
JK flip-flop truth table:
6.4.15174xx77 (4-bit Bistable Latches)
This 4-bit latch is available in a 14-pin flat package.
Sample bistable latch truth table:
INPUTS OUTPUTS
DCQQ
0101
1110
X0Q0Q0
PRE CLR CLK J KQQ
01XXX10
10XXX01
00XXX11
11· 00Hold
11· 1010
11· 0101
1 1 · 1 1 Toggle
· = pulse triggered (level sensitive)
DCLH
0110
1110
X 0 Hold
ComponentRef.book Page 86 Thursday, December 7, 2006 10:12 AM