NXP Semiconductors
74LVC74A
Dual D-type flip-flop with set and reset; positive-edge trigger
10. Dynamic characteristics
Table 8.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). For test circuit see
Symbol Parameter
t
pd
propagation
delay
Conditions
nCP to nQ, nQ; see
V
CC
= 1.2 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
nSD to nQ, nQ; see
V
CC
= 1.2 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
nRD to nQ, nQ; see
V
CC
= 1.2 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
W
pulse width
clock HIGH or LOW; see
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
set or reset LOW; see
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
rec
recovery time
set or reset; see
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
su
set-up time
nD to nCP; see
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
h
hold time
nD to nCP; see
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
f
max
maximum
frequency
nCP; see
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
sk(o)
C
PD
output skew time V
CC
= 3.0 V to 3.6 V
power
dissipation
capacitance
per flip-flop; V
I
= GND to V
CC
V
CC
= 3.3 V
−40 °C
to +85
°C
Min
-
1.0
1.0
-
1.0
1.0
-
1.0
1.0
3.3
3.3
3.3
3.3
1.5
+1.0
2.2
2.0
1.0
+1.0
83
150
-
-
Typ
15
2.7
2.5
15
3.2
2.5
15
3.2
2.5
-
1.3
-
1.7
-
−3.0
-
0.8
-
−0.2
-
250
-
15
1.0
-
Max
-
6.0
5.2
-
6.4
5.4
-
6.4
5.4
-
-
-
-
-
-
-
-
-
-
-
−40 °C
to +125
°C
Unit
Min
-
1.0
1.0
-
1.0
1.0
-
1.0
1.0
4.5
4.5
4.5
4.5
1.0
1.0
2.2
2.0
1.0
1.0
66
120
-
-
Max
-
7.5
6.5
-
8.0
7.0
-
8.0
7.0
-
-
-
-
-
-
-
-
-
-
-
-
1.5
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
ns
pF
[1]
[2]
[3]
Typical values are measured at T
amb
= 25
°C.
For V
CC
= 3.0 V to 3.6 V range, typical values are measured at 3.3 V.
t
pd
is the same as t
PLH
and t
PHL
.
Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
74LVC74A_6
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 06 — 4 June 2007
6 of 16
PHILIPS [ NXP SEMICONDUCTORS ]
