NXP Semiconductors
74HC74; 74HCT74
Dual D-type flip-flop with set and reset; positive edge-trigger
11. Waveforms
9
,
Q' LQSXW
*1'
W
K
W
VX
9
,
Q&3 LQSXW
*1'
W
:
W
3+/
9
2+
Q4 RXWSXW
9
2/
W
3/+
9
2+
Q4 RXWSXW
9
2/
W
7/+
9
0
W
7+/
DDD
9
0
W
K
I
PD[
W
VX
9
0
W
3/+
9
0
W
3+/
Measurement points are given in
V
OL
and V
OH
are typical voltage output levels that occur with the output load.
Fig 7.
Input to output propagation delay, output transition time, clock input pulse width and maximum
frequency
74HC_HCT74
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© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 4 — 27 August 2012
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