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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
SOIC−20
DW SUFFIX
CASE 751D
1
LCX574
AWLYYWW
20
1
20
TSSOP−20
DT SUFFIX
CASE 948E
1
LCX
574
ALYW
20
1
•
•
•
•
•
•
•
•
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
•
Pb−Free Packages are Available*
20
SOEIAJ−20
M SUFFIX
CASE 967
1
74LCX574
AWLYWW
20
1
A
L, WL
Y, YY
W, WW
=
=
=
=
Assembly Location
Wafer Lot
Year
Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2005
1
February, 2005 − Rev. 5
Publication Order Number:
MC74LCX574/D
MC74LCX574
V
CC
20
O0
19
O1
18
O2
17
O3
16
O4
15
O5
14
O6
13
O7
12
CP
11
OE
CP
1
11
nCP
D
nCP
D
nCP
D
nCP
D
nCP
D
nCP
D
nCP
D
nCP
D
19
Q
D0
2
O0
1
OE
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7
10
GND
D1
18
Q
3
O1
Figure 1. Pinout: 20−Lead
(Top View)
D2
4
17
Q
O2
D3
5
16
Q
O3
PIN NAMES
Pins
OE
CP
D0−D7
O0−O7
Function
Output Enable Input
Clock Pulse Input
Data Inputs
3−State Outputs
D4
15
Q
6
O4
14
Q
D5
7
O5
13
Q
D6
8
O6
D7
9
12
Q
O7
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
Parameter
DC Supply Voltage
DC Input Voltage
DC Output Voltage
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
I
IK
I
OK
DC Input Diode Current
DC Output Diode Current
−50
−50
+50
I
O
I
CC
I
GND
T
STG
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
±50
±100
±100
−65 to +150
Output in 3−State
Note 1
V
I
< GND
V
O
< GND
V
O
> V
CC
Condition
Unit
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
V
I
V
O
I
OH
I
OL
I
OH
I
OL
T
A
Dt/DV
Supply Voltage
Input Voltage
Output Voltage
(HIGH or LOW State)
(3−State)
Parameter
Operating
Data Retention Only
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
−40
0
+85
10
Unit
V
V
V
mA
mA
mA
mA
°C
ns/V
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
ORDERING INFORMATION
Device
MC74LCX574DWR2
MC74LCX574DWR2G
MC74LCX574DT
MC74LCX574DTR2
MC74LCX574MEL
Package
SOIC−20
SOIC−20
(Pb−Free)
TSSOP−20*
TSSOP−20*
SOEIAJ−20
Shipping
†
1000 Tape & Reel
1000 Tape & Reel
75 Units / Rail
2000 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.
*This package is inherently Pb−Free.
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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
I
I
OZ
I
OFF
I
CC
Input Leakage Current
3−State Output Current
Power−Off Leakage Current
Quiescent Supply Current
2.7 V
≤
V
CC
≤
3.6 V; 0 V
≤
V
I
≤
5.5 V
2.7
≤
V
CC
≤
3.6 V; 0 V
≤
V
O
≤
5.5 V;
V
I
= V
IH
or V
IL
V
CC
= 0 V; V
I
or V
O
= 5.5 V
2.7
≤
V
CC
≤
3.6 V; V
I
= GND or V
CC
2.7
≤
V
CC
≤
3.6 V; 3.6
≤
V
I
or V
O
≤
5.5 V
DI
CC
Increase in I
CC
per Input
2.7
≤
V
CC
≤
3.6 V; V
IH
= V
CC
− 0.6 V
2. These values of V
I
are used to test DC electrical characteristics only.
V
CC
− 0.2
2.2
2.4
2.2
0.2
0.4
0.4
0.55
±5.0
±5.0
10
10
±10
500
mA
mA
mA
mA
mA
mA
V
Min
2.0
0.8
Max
Unit
V
V
V
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
Unit
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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