Datasheet

74HC_HCT74 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 4 — 27 August 2012 11 of 21
NXP Semiconductors
74HC74; 74HCT74
Dual D-type flip-flop with set and reset; positive edge-trigger
Measurement points are given in Table 9.
V
OL
and V
OH
are typical voltage output levels that occur with the output load.
Fig 8. Set and reset propogation delays, pulse widths and recovery time
mna423
t
rec
t
PHL
t
PHL
t
W
t
PLH
t
PLH
V
M
V
M
V
M
t
W
V
M
V
M
V
I
GND
V
I
GND
nSD input
V
I
GND
nRD input
nCP input
V
OH
V
OL
nQ output
V
OH
V
OL
nQ output
Table 9. Measurement points
Type Input Output
V
M
V
M
74HC74 0.5V
CC
0.5V
CC
74HCT74 1.3 V 1.3 V