Tektronix 7834

Set-Clear
(J-K)
Flip-Flop
D (data) Type
Flip-Flop
Triggered
Set-Clear
(J-K )
Flip-Flop
Flip-Flop
with
Direct Inputs
(may be applied
to all triggered
flip-flops)
Symbol
A D
FF
0
X
TABLE 3-1 (cont)
Description
A bistable device with two inputs
and two outputs (either or both
outputs
may be used) . The outputs
change
state in response to the
states at the inputs . The outputs are
complementary (i .e ., when one out-
put is HI the other is LO) .
A bistable device with two inputs
and two outputs (either or both
outputs
may be used) . When trig-
gered the state of the "1" output
changes to
the state at the data (D)
input prior to the trigger . The
outputs are complementary (i .e .,
when one output is H I the other is
LO) . The edge symbol on the trig-
ger (T) input may be of either
polarity, depending on the device .
A bistable device with three or
more inputs and two outputs
(either or both outputs may be
used) . When triggered,
the outputs
change
state in
response to
the
states at the inputs prior to the
trigger . The outputs are comple-
mentary (i .e ., when one output is
HI the other is LO) . The edge
symbol on the trigger (T) input
may be of either polarity depending
on the device .
For
devices with direct-set (S ID ) or
direct-clear (C o ) inputs, the indi-
cated state at either of these inputs
over-rides all other inputs (in-
cluding trigger) to set the outputs
to the
states shown in the input/
output table .
Theory
of
Operation--7834
Input/Output Table
Output conditions shown after
trigger pulse
Output conditions shown after
trigger pulse
(D - Has no effect in this case
l Output state determined by
conditions at triggered inputs
Input / Output
A X I X
LO LO HI
HI HI LO