MC74VHC374
http://onsemi.com
4
DC ELECTRICAL CHARACTERISTICS
Unit
T
A
= − 40 to 85°CT
A
= 25°C
V
CC
V
Test ConditionsParameterSymbol Unit
MaxMinMaxTypMin
V
CC
V
Test ConditionsParameterSymbol
I
in
Maximum Input
Leakage Current
V
in
= 5.5V or GND 0 to 5.5 ± 0.1 ± 1.0 μA
I
OZ
Maximum
Three−State Leakage
Current
V
in
= V
IL
or V
IH
V
out
= V
CC
or GND
5.5 ± 0.25 ± 2.5 μA
I
CC
Maximum Quiescent
Supply Current
V
in
= V
CC
or GND 5.5 4.0 40.0 μA
AC ELECTRICAL CHARACTERISTICS (Input t
r
= t
f
= 3.0ns)
Symbol Parameter Test Conditions
T
A
= 25°C T
A
= − 40 to 85°C
Unit
Min Typ Max Min Max
f
max
Maximum Clock Frequency
(50% Duty Cycle)
V
CC
= 3.3 ± 0.3V C
L
= 15pF
C
L
= 50pF
80
55
130
85
70
50
ns
V
CC
= 5.0 ± 0.5V C
L
= 15pF
C
L
= 50pF
130
85
185
120
110
75
t
PLH
,
t
PHL
Maximum Propagation Delay,
CP to Q
V
CC
= 3.3 ± 0.3V C
L
= 15pF
C
L
= 50pF
8.1
10.6
12.7
16.2
1.0
1.0
15.0
18.5
ns
V
CC
= 5.0 ± 0.5V C
L
= 15pF
C
L
= 50pF
5.4
6.9
8.1
10.1
1.0
1.0
9.5
11.5
t
PZL
,
t
PZH
Output Enable Time,
OE
to Q
V
CC
= 3.3 ± 0.3V C
L
= 15pF
R
L
= 1kΩ C
L
= 50pF
7.1
9.6
11.0
14.5
1.0
1.0
13.0
16.5
ns
V
CC
= 5.0 ± 0.5V C
L
= 15pF
R
L
= 1kΩ C
L
= 50pF
5.1
6.6
7.6
9.6
1.0
1.0
9.0
11.0
t
PLZ
,
t
PHZ
Output Disable Time,
OE
to Q
V
CC
= 3.3 ± 0.3V C
L
= 50pF
R
L
= 1kΩ
10.2 14.0 1.0 16.0
ns
V
CC
= 5.0 ± 0.5V C
L
= 50pF
R
L
= 1kΩ
6.1 8.8 1.0 10.0
t
OSLH
,
t
OSHL
Output to Output Skew
V
CC
= 3.3 ± 0.3V C
L
= 50pF
(Note 1)
1.5 1.5 ns
V
CC
= 5.0 ± 0.5V C
L
= 50pF
(Note 1)
1.0 1.0 ns
C
in
Maximum Input Capacitance 4 10 10 pF
C
out
Maximum Three−State Output
Capacitance (Output in
High−Impedance State)
6 pF
C
PD
Power Dissipation Capacitance (Note 2)
Typical @ 25°C, V
CC
= 5.0V
pF
32
1. Parameter guaranteed by design. t
OSLH
= |t
PLHm
− t
PLHn
|, t
OSHL
= |t
PHLm
− t
PHLn
|.
2. C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: I
CC(OPR
)
= C
PD
V
CC
f
in
+ I
CC
/ 8 (per flip−flop). C
PD
is used to determine the
no−load dynamic power consumption; P
D
= C
PD
V
CC
2
f
in
+ I
CC
V
CC
.
