MC74LCX574
Low-Voltage CMOS
Octal D-Type Flip-Flop
Flow Through Pinout
With 5 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
The MC74LCX574 is a high performance, non−inverting octal
D−type flip−flop operating from a 2.3 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
MC74LCX574 inputs to be safely driven from 5.0 V devices.
The MC74LCX574 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. The LCX574 flow through design facilitates easy PC
board layout.
Features
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MARKING
DIAGRAMS
20
LCX574
AWLYYWWG
1
SOIC−20 WB
DW SUFFIX
CASE 751D
TSSOP−20
DT SUFFIX
CASE 948E
A
L, WL
Y, YY
W, WW
G or
G
=
=
=
=
=
LCX
574
ALYWG
G
•
•
•
•
•
•
•
•
Designed for 2.3 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
LVTTL Compatible
LVCMOS Compatible
24mA Balanced Output Sink and Source Capability
Near Zero Static Supply Current in All Three Logic States (10
mA)
Substantially Reduces System Power Requirements
•
Latchup Performance Exceeds 500 mA
•
ESD Performance:
♦
Human Body Model >2000 V
♦
Machine Model >200 V
•
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Assembly Location
Wafer Lot
Year
Work Week
Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
©
Semiconductor Components Industries, LLC, 2013
January, 2013
−
Rev. 9
1
Publication Order Number:
MC74LCX574/D
MC74LCX574
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)
PIN NAMES
Pins
OE
CP
D0−D7
O0−O7
Function
Output Enable Input
Clock Pulse Input
Data Inputs
3−State Outputs
7
D5
CP
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
INTERNAL
LATCHES
Q
L
H
NC
NC
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
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
MC74LCX574
MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
I
GND
T
STG
MSL
DC Supply Voltage
DC Input Voltage
DC Output Voltage
Parameter
Value
−0.5
to +7.0
−0.5
≤
V
I
≤
+7.0
−0.5
≤
V
O
≤
+7.0
−0.5
≤
V
O
≤
V
CC
+ 0.5
DC Input Diode Current
DC Output Diode Current
−50
−50
+50
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
Moisture Sensitivity
±50
±100
±100
−65
to +150
Level 1
Output in 3−State
(Note 1)
V
I
< GND
V
O
< GND
V
O
> V
CC
Condition
Units
V
V
V
V
mA
mA
mA
mA
mA
mA
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. Output in HIGH or LOW State. I
O
absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
Supply Voltage
Operating
Data Retention Only
Input Voltage
Output Voltage
(HIGH or LOW State)
(3−State)
HIGH Level Output Current, V
CC
= 3.0 V
−
3.6 V
LOW Level Output Current, V
CC
= 3.0 V
−
3.6 V
HIGH Level Output Current, V
CC
= 2.7 V
−
3.0 V
LOW Level Output Current, V
CC
= 2.7 V
−
3.0 V
Operating Free−Air Temperature
Input Transition Rise or Fall Rate, V
IN
from 0.8 V to 2.0 V, V
CC
= 3.0 V
−40
0
Parameter
Min
2.0
1.5
0
0
0
Typ
3.3
3.3
Max
3.6
3.6
5.5
V
CC
5.5
−24
24
−12
12
+85
10
Units
V
V
I
V
O
V
V
I
OH
I
OL
I
OH
I
OL
T
A
Dt/DV
mA
mA
mA
mA
°C
ns/V
ORDERING INFORMATION
Device
MC74LCX574DWR2G
MC74LCX574DWR2G
MC74LCX574DTR2G
Package
SOIC−20
(Pb−Free)
SOIC−20
(Pb−Free)
SOEIAJ−20
(Pb−Free)
Shipping
†
1000 Tape & Reel
1000 Tape & Reel
2000 Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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3
MC74LCX574
DC ELECTRICAL CHARACTERISTICS
T
A
=
−40°C
to +85°C
Symbol
V
IH
V
IL
V
OH
Characteristic
HIGH Level Input Voltage (Note 2)
LOW Level Input Voltage (Note 2)
HIGH Level Output Voltage
Condition
2.7 V
≤
V
CC
≤
3.6 V
2.7 V
≤
V
CC
≤
3.6 V
2.7 V
≤
V
CC
≤
3.6 V; I
OH
=
−100
mA
V
CC
= 2.7 V; I
OH
=
−12
mA
V
CC
= 3.0 V; I
OH
=
−18
mA
V
CC
= 3.0 V; I
OH
=
−24
mA
V
OL
LOW Level Output Voltage
2.7 V
≤
V
CC
≤
3.6 V; I
OL
= 100
mA
V
CC
= 2.7 V; I
OL
= 12 mA
V
CC
= 3.0 V; I
OL
= 16 mA
V
CC
= 3.0 V; I
OL
= 24 mA
I
OZ
I
OFF
I
IN
I
CC
DI
CC
3−State Output Current
Power Off Leakage Current
Input Leakage Current
Quiescent Supply Current
Increase in I
CC
per Input
V
CC
= 3.6 V, V
IN
= V
IH
or V
IL
,
V
OUT
= 0 to 5.5 V
V
CC
= 0, V
IN
= 5.5 V or V
OUT
= 5.5 V
V
CC
= 3.6 V, V
IN
= 5.5 V or GND
V
CC
= 3.6 V, V
IN
= 5.5 V or GND
2.3
≤
V
CC
≤
3.6 V; V
IH
= V
CC
−
0.6 V
V
CC
−
0.2
2.2
2.4
2.2
0.2
0.4
0.4
0.55
±5
10
±5
±10
500
mA
mA
mA
mA
mA
V
Min
2.0
0.8
Max
Units
V
V
V
2. These values of V
I
are used to test DC electrical characteristics only.
AC CHARACTERISTICS
(t
R
= t
F
= 2.5 ns; C
L
= 50 pF; R
L
= 500
W)
Limits
T
A
=
−40°C
to +85°C
V
CC
= 3.0 V to 3.6 V
Symbol
f
max
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
s
t
h
t
w
t
OSHL
t
OSLH
Parameter
Clock Pulse Frequency
Propagation Delay
CP to On
Output Enable Time to HIGH and LOW Levels
Output Disable Time from HIGH and LOW
Levels
Setup TIme, HIGH or LOW Dn to CP
Hold TIme, HIGH or LOW Dn to CP
CP Pulse Width, HIGH or LOW
Output−to−Output Skew (Note 3)
Waveform
1
1
2
2
1
1
3
Min
150
1.5
1.5
1.5
1.5
1.5
1.5
2.5
1.5
3.3
1.0
1.0
8.5
8.5
8.5
8.5
6.5
6.5
1.5
1.5
1.5
1.5
1.5
1.5
2.5
1.5
3.3
9.5
9.5
9.5
9.5
7.0
7.0
Max
V
CC
= 2.7 V
Min
Max
Units
MHz
ns
ns
ns
ns
ns
ns
ns
3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH−to−LOW (t
OSHL
) or LOW−to−HIGH (t
OSLH
); parameter
guaranteed by design.
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MC74LCX574
DYNAMIC SWITCHING CHARACTERISTICS
T
A
= +25°C
Symbol
V
OLP
V
OLV
Characteristic
Dynamic LOW Peak Voltage (Note 4)
Dynamic LOW Valley Voltage (Note 4)
Condition
V
CC
= 3.3 V, C
L
= 50 pF, V
IH
= 3.3 V, V
IL
= 0 V
V
CC
= 3.3 V, C
L
= 50 pF, V
IH
= 3.3 V, V
IL
= 0 V
Min
Typ
0.8
0.8
Max
Units
V
V
4. Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol
C
IN
C
OUT
C
PD
Parameter
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Condition
V
CC
= 3.3 V, V
I
= 0 V or V
CC
V
CC
= 3.3 V, V
I
= 0 V or V
CC
10 MHz, V
CC
= 3.3 V, V
I
= 0 V or V
CC
Typical
7
8
25
Units
pF
pF
pF
2.7 V
2.7 V
Dn
OE
1.5 V
0V
t
s
CP
1.5 V
0V
f
max
t
PLH
, t
PHL
V
OH
On
1.5 V
V
OL
WAVEFORM 1 - PROPAGATION DELAYS, SETUP AND HOLD TIMES
t
R
= t
F
= 2.5 ns, 10% to 90%; f = 1 MHz; t
W
= 500 ns
On
t
PZL
t
PLZ
≈
3.0 V
1.5 V
V
OL
+ 0.3 V
GND
t
h
2.7 V
On
1.5 V
t
PZH
t
PHZ
V
CC
V
OH
- 0.3 V
≈
0V
1.5 V
1.5 V
0V
WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES
t
R
= t
F
= 2.5 ns, 10% to 90%; f = 1 MHz; t
W
= 500 ns
2.7 V
CP
1.5 V
t
w
1.5 V
0V
2.7 V
1.5 V
0V
t
w
CP
1.5 V
WAVEFORM 3 - PULSE WIDTH
t
R
= t
F
= 2.5 ns (or fast as required) from 10% to 90%;
Output requirements: V
OL
≤
0.8 V, V
OH
≥
2.0 V
Figure 3. AC Waveforms
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