
Philips Semiconductors
Product specification
74ALS74A
Dual D-type flip-flop with set and reset
1996 Jul 01
5
AC WAVEFORMS
For all waveforms, V
M
= 1.3V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
V
M
V
M
CPn
V
M
V
M
V
M
V
M
V
M
V
M
t
su
(H)
t
h
(H)
Dn
Qn
V
M
t
w
(H)
1/f
max
t
su
(L)
t
h
(L)
V
M
V
M
t
PLH
Qn
t
w
(L)
t
PHL
t
PHL
t
PLH
SF00049
Waveform 1.
Data Setup and Hold Times, Clock Width,
and Maximum Clock Frequency
Propagation Delay for Data to Output,
V
M
CPn
Qn
V
M
V
M
Qn
t
PHL
t
PLH
SDn
V
M
V
M
t
w
(L)
SC00040
Dn
t
REC
Waveform 2.
Set Pulse Width and Recovery Time for Set to Clock
Propagation Delay for Set to Output,
V
M
CPn
Qn
V
M
V
M
Qn
t
PHL
t
PLH
RDn
V
M
V
M
t
w
(L)
SC00041
Dn
t
REC
Waveform 3.
Reset Pulse Width and Recovery Time for Reset to Clock
Propagation Delay for Reset to Output,