74VHC374
5/14
Table 7: AC Electrical Characteristics (Input t
r
= t
f
= 3ns)
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
Note 1: Parameter guaranteed by design. t
soLH
= |t
pLHm
- t
pLHn
|, t
soHL
= |t
pHLm
- t
pHLn
|
Table 8: Capacitive Characteristics
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/8 (per
Flip-Flop)
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
C
L
(pF)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
t
PLH
t
PHL
Propagation Delay
Time
CK to Q
3.3
(*)
15 8.1 12.7 1.0 15.0 1.0 15.0
ns
3.3
(*)
50 10.6 16.2 1.0 18.5 1.0 18.5
5.0
(**)
15 5.4 8.1 1.0 9.5 1.0 9.5
5.0
(**)
50 6.9 10.1 1.0 11.5 1.0 11.5
t
PZL
t
PZH
Output Enable
Time
3.3
(*)
15
R
L
= 1KΩ
7.1 11.0 1.0 13.0 1.0 13.0
ns
3.3
(*)
50
R
L
= 1KΩ
9.6 14.5 1.0 16.5 1.0 16.5
5.0
(**)
15
R
L
= 1KΩ
5.1 7.6 1.0 9.0 1.0 9.0
5.0
(**)
50
R
L
= 1KΩ
6.6 9.6 1.0 11.0 1.0 11.0
t
PLZ
t
PHZ
Output Disable
Time
3.3
(*)
15
R
L
= 1KΩ
10.2 14.0 1.0 16.0 1.0 16.0
ns
3.3
(*)
50
R
L
= 1KΩ
6.1 8.8 1.0 10.0 1.0 10.0
t
w
Clock Pulse Width
HIGH or LOW
3.3
(*)
5.0 5.5 5.5
ns
5.0
(**)
5.0 5.0 5.0
t
s
Setup Time D to CK
HIGH or LOW
3.3
(*)
4.5 4.5 4.5
ns
5.0
(**)
3.0 3.0 3.0
t
h
Hold Time D to CK
HIGH or LOW
3.3
(*)
2.0 2.0 2.0
ns
5.0
(**)
2.0 2.0 2.0
f
MAX
Maximum Clock
Frequency
3.3
(*)
60 250 60 60
MHz
5.0
(**)
100 270 100 100
t
OSLH
t
OSHL
Output to Output
Skew time (note 1)
3.3
(*)
50 1.5 1.5 1.5
ns
5.0
(**)
50 1.0 1.0 1.0
Symbol Parameter
Test Condition Value
Unit
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
C
IN
Input Capacitance
710 10 10pF
C
OUT
Output
Capacitance
9pF
C
PD
Power Dissipation
Capacitance
(note 1)
32 pF
Obsolete Product(s) - Obsolete Product(s)