74HC109 Philips, 74HC109 Datasheet - Page 7

• Manufacturer Part Number: 74HC109
• Description: Dual JK flip-flop with set and reset positive-edge trigger
• Manufacturer: Philips

Philips Semiconductors
AC WAVEFORMS
1997 Nov 25
Dual JK flip-flop with set and reset;
positive-edge trigger
The shaded areas indicate when the
input is permitted to change for
predictable output performance.
Fig.6
(1) HC: V
Fig.7
HCT: V
Waveforms showing the clock (nCP) to output (nQ, nQ) propagation delays, the clock pulse width, the nJ,
nK to nCP set-up, the nCP to nJ, nK hold times, the output transition times and the maximum clock pulse
Waveforms showing the set (nS
and reset pulse widths and the nR
frequency.
M
handbook, full pagewidth
M
= 50%; V
= 1.3 V; V
I
= GND to V
I
= GND to 3 V.
nQ OUTPUT
nQ OUTPUT
nR D INPUT
nCP INPUT
nS D INPUT
CC
.
t PHL
V M
D
) and reset (nR
(1)
D
t W
V M
, nS
t PLH
V M
(1)
(1)
D
to nCP removal time.
7
D
) input to output (nQ, nQ) propagation delays, the set
t rem
t PLH
V M
t PHL
(1)
t W
t rem
V M
MBK216
(1)
74HC/HCT109
Product specification