74LVC574A
Low-Voltage CMOS Octal
D-Type Flip-Flop
With 5 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
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The 74LVC574A is a high performance, non−inverting octal D−type
flip−flop operating from a 1.2 to 3.6 V supply. High impedance TTL
compatible inputs significantly reduce current loading to input drivers
while TTL compatible outputs offer improved switching noise
performance. A V
I
specification of 5.5 V allows 74LVC574A inputs to
be safely driven from 5 V devices.
The 74LVC574A consists of 8 edge−triggered flip−flops with
individual D−type inputs and 3−state true outputs. The buffered clock
and buffered Output Enable (OE) are common to all flip−flops. The
eight flip−flops will store the state of individual D inputs that meet the
setup and hold time requirements on the LOW−to−HIGH Clock (CP)
transition. With the OE LOW, the contents of the eight flip−flops are
available at the outputs. When the OE is HIGH, the outputs go to the
high impedance state. The OE input level does not affect the operation
of the flip−flops.
Features
MARKING
DIAGRAM
20
20
1
TSSOP−20
DT SUFFIX
CASE 948E
1
A
L, WL
Y, YY
W, WW
G or
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
LCV
574A
ALYWG
G
(Note: Microdot may be in either location)
•
•
•
•
•
•
Designed for 1.2 to 3.6 V V
CC
Operation
5 V Tolerant − Interface Capability With 5 V TTL Logic
Supports Live Insertion and Withdrawal
I
OFF
Specification Guarantees High Impedance When V
CC
= 0 V
24 mA Output Sink and Source Capability
Near Zero Static Supply Current in All Three Logic States (10
mA)
Substantially Reduces System Power Requirements
•
ESD Performance:
♦
Human Body Model >2000 V
♦
Machine Model >200 V
•
These are Pb−Free Devices
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of
this data sheet.
©
Semiconductor Components Industries, LLC, 2015
1
September, 2015 − Rev. 1
Publication Order Number:
74LVC574A/D
74LVC574A
OE
CP
1
11
CP
Q
D
18
Q
D
17
Q
D
16
Q
D
CP
Q
D
14
Q
D
CP
Q
D
12
Q
D
O7
13
O6
O5
15
O4
O3
O2
O1
19
O0
2
D0
V
CC
20
O0
19
O1
18
O2
17
O3
16
O4
15
O5
14
O6
13
O7
12
CP
11
3
D1
CP
4
D2
CP
5
1
OE
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7
10
GND
6
D4
D3
CP
Figure 1. Pinout: 20−Lead
(Top View)
7
CP
PIN NAMES
Pins
OE
CP
D0−D7
O0−O7
Function
Output Enable Input
Clock Pulse Input
Data Inputs
3−State Outputs
D5
8
D6
9
D7
CP
Figure 2. Logic Diagram
TRUTH TABLE
INPUTS
OE
L
L
L
H
H
H
H
h
L
l
NC
X
Z
↑
↑
=
=
=
=
=
=
=
=
=
CP
↑
↑
↑
↑
↑
↑
Dn
l
h
X
X
l
h
OUTPUTS
On
L
H
NC
Z
Z
Z
OPERATING MODE
Load and Read Register
Hold and Read Register
Hold and Disable Outputs
Load Internal Register and Disable Outputs
High Voltage Level
High Voltage Level One Setup Time Prior to the Low−to−High Clock Transition
Low Voltage Level
Low Voltage Level One Setup Time Prior to the Low−to−High Clock Transition
No Change, State Prior to Low−to−High Clock Transition
High or Low Voltage Level and Transitions are Acceptable
High Impedance State
Low−to−High Transition
Not a Low−to−High Transition; For I
CC
Reasons, DO NOT FLOAT Inputs
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2
74LVC574A
MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
Parameter
DC Supply Voltage
DC Input Voltage
DC Output Voltage
Output in 3−State
Output in HIGH or LOW State
(Note 1)
I
IK
I
OK
DC Input Diode Current
DC Output Diode Current
V
I
< GND
V
O
< GND
V
O
> V
CC
I
O
I
CC
I
GND
T
STG
T
L
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
Lead Temperature, 1 mm from Case for
10 Seconds
Junction Temperature Under Bias
Thermal Resistance (Note 2)
Moisture Sensitivity
Level 1
Condition
Value
−0.5 to +6.5
−0.5
≤
V
I
≤
+6.5
−0.5
≤
V
O
≤
+6.5
−0.5
≤
V
O
≤
V
CC
+ 0.5
−50
−50
+50
±50
±100
±100
−65 to +150
T
L
= 260
Unit
V
V
V
V
mA
mA
mA
mA
mA
mA
°C
°C
°C
°C/W
T
J
qJA
MSL
T
J
= 135
110.7
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. I
O
absolute maximum rating must be observed.
2. Measured with minimum pad spacing on an FR4 board, using 10 mm−by−1 inch, 2 ounce copper trace no air flow.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
Parameter
Supply Voltage Operating Functional
Min
1.65
1.2
0
0
0
Typ
Max
3.6
3.6
5.5
V
CC
5.5
mA
−24
−12
mA
24
12
−40
0
0
+125
20
10
°C
ns/V
V
V
Unit
V
V
I
V
O
Input Voltage
Output Voltage
HIGH or LOW State
3−State
HIGH Level Output Current
V
CC
= 3.0 V − 3.6 V V
CC
= 2.7 V − 3.0 V
LOW Level Output Current
V
CC
= 3.0 V − 3.6 V V
CC
= 2.7 V − 3.0 V
Operating Free−Air Temperature
Input Transition Rise or Fall Rate,
V
CC
= 1.65 to 2.7 V
V
CC
= 2.7 to 3.6 V
I
OH
I
OL
T
A
Dt/DV
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
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3
74LVC574A
DC ELECTRICAL CHARACTERISTICS
−40 to +855C
Typ
(Note 3)
−
−
−
−
−
−
−
−
−40 to +1255C
Typ
(Note 3)
−
−
−
−
−
−
−
−
Symbol
V
IH
Parameter
HIGH−level input voltage
Conditions
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
Min
1.08
0.65 x
V
CC
1.7
2.0
−
−
−
−
Max
−
−
−
−
0.12
0.35 x
V
CC
0.7
0.8
Min
1.08
0.65 x
V
CC
1.7
2.0
−
−
−
−
Max
−
−
−
−
0.12
0.35 x
V
CC
0.7
0.8
Unit
V
V
IL
LOW−level input voltage
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
V
OH
HIGH−level output voltage
V
I
= V
IH
or V
IL
I
O
= −100
mA;
V
CC
= 1.65 V to 3.6 V
I
O
= −4 mA; V
CC
= 1.65 V
I
O
= −8 mA; V
CC
= 2.3 V
I
O
= −12 mA; V
CC
= 2.7 V
I
O
= −18 mA; V
CC
= 3.0 V
I
O
= −24 mA; V
CC
= 3.0 V
V
CC
−
0.2
1.2
1.8
2.2
2.4
2.2
−
−
−
−
−
−
−
−
−
−
−
−
V
CC
−
0.3
1.05
1.65
2.05
2.25
2.0
−
−
−
−
−
−
−
−
−
−
−
−
V
V
OL
LOW−level output voltage
V
I
= V
IH
or V
IL
I
O
= 100
mA;
V
CC
= 1.65 V to 3.6 V
I
O
= 4 mA; V
CC
= 1.65 V
I
O
= 8 mA; V
CC
= 2.3 V
I
O
= 12 mA; V
CC
= 2.7 V
I
O
= 24 mA; V
CC
= 3.0 V
−
−
−
−
−
−
−
−
−
−
−
−
±0.1
±0.1
0.2
0.45
0.6
0.4
0.55
±5
±5
−
−
−
−
−
−
−
−
−
−
−
−
±0.1
±0.1
0.3
0.65
0.8
0.6
0.8
±20
±20
V
I
I
I
OZ
Input leakage current
OFF−state output current
V
I
= 5.5 V or GND;
V
CC
= 3.6 V
VI = VIH or VIL;
V
O
= 5.5 V or GND;
V
CC
= 3.6 V
V
I
or V
O
= 5.5 V; V
CC
= 0.0 V
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 3.6 V
per input pin;
V
I
= V
CC
− 0.6 V; I
O
= 0 A;
V
CC
= 2.7 V to 3.6 V
mA
mA
I
OFF
I
CC
DI
CC
Power−off leakage current
Supply current
Additional supply current
−
−
−
±0.1
0.1
5
±10
10
500
−
−
−
±0.1
0.1
5
±20
40
5000
mA
mA
mA
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. All typical values are measured at T
A
= 25°C and V
CC
= 3.3 V, unless stated otherwise.
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74LVC574A
AC ELECTRICAL CHARACTERISTICS
(t
R
= t
F
= 2.5 ns)
−40 to +855C
Min
−
4.6
2.6
1.5
1.5
−
1.5
1.5
1.5
1.5
−
2.5
1.0
1.5
1.5
5.0
4.0
3.3
3.3
4.0
2.5
2.0
2.0
3.0
2.0
1.5
1.5
100
125
150
150
−
Typ
(Note 4)
17.0
6.4
3.9
3.7
3.5
19.0
7.0
4.0
4.1
3.2
9.0
4.1
2.3
3.1
2.9
−
−
−
1.7
−
−
−
0.3
−
−
−
−0.2
−
−
−
200
−
Max
−
13.1
7.9
8.0
7.0
−
17.1
9.4
8.5
7.5
−
10.1
5.7
6.5
6.0
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
1.0
−40 to +1255C
Min
−
4.6
2.6
1.5
1.5
−
1.5
1.5
1.5
1.5
−
2.5
1.0
1.5
1.5
5.0
4.0
3.3
3.3
4.0
2.5
2.0
2.0
3.0
2.0
1.5
1.5
80
100
120
120
−
Typ
(Note 4)
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Max
−
15.1
9.1
10.0
9.0
−
19.8
10.9
11.0
9.5
−
11.6
6.6
8.5
7.5
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
1.5
ns
MHz
ns
ns
ns
ns
ns
ns
Symbol
t
pd
Parameter
Propagation Delay (Note 5)
CP to On
Conditions
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
Unit
t
en
Enable Time (Note 6)
OE to On
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
dis
Disable Time (Note 7)
OE to On
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
w
Pulse Width
Clock HIGH or LOW
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
su
Set−up Time
Dn to CP
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
h
Hold Time
Dn to CP
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
fmax
Maximum Frequency
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
sk(0)
Output Skew Time (Note 8)
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. Typical values are measured at T
A
= 25°C and V
CC
= 3.3 V, unless stated otherwise.
5. t
pd
is the same as t
PLH
and t
PHL
.
6. t
en
is the same as t
PZL
and t
PZH
.
7. t
dis
is the same as t
PLZ
and t
PHZ
.
8. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
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