74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0
January 2008
74LVT574, 74LVTH574
Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Features
Input and output interface capability to systems at
5V V
CC
Bushold data inputs eliminate the need for external
pull-up resistors to hold unused inputs (74LVTH574),
also available without bushold feature (74LVT574)
Live insertion/extraction permitted
Power Up/Down high impedance provides glitch-free
bus loading
Outputs source/sink –32mA/+64mA
Functionally compatible with the 74 series 574
Latch-up performance exceeds 500mA
ESD performance:
– Human-body model
>
2000V
– Machine model
>
200V
– Charged-device model
>
1000V
General Description
The LVT574 and LVTH574 are high-speed, low-power
octal D-type flip-flop featuring separate D-type inputs for
each flip-flop and 3-STATE outputs for bus-oriented
applications. A buffered Clock (CP) and Output Enable
(OE) are common to all flip-flops.
The LVTH574 data inputs include bushold, eliminating
the need for external pull-up resistors to hold unused
inputs.
These octal flip-flops are designed for low-voltage (3.3V)
V
CC
applications, but with the capability to provide a TTL
interface to a 5V environment. The LVT574 and
LVTH574 are fabricated with an advanced BiCMOS
technology to achieve high speed operation similar to 5V
ABT while maintaining a low power dissipation.
Ordering Information
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
All packages are lead free per JEDEC: J-STD-020B standard.
Order Number
Package
Number Package Description
74LVT574WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LVT574SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVT574MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
74LVT574MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
74LVTH574WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LVTH574SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVTH574MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
74LVTH574MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 2
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Connection Diagram
Pin Description
Functional Description
The LVT574 and LVTH574 consist of eight edge-
triggered flip-flops with individual D-type inputs and
3-STATE true outputs. The buffered clock and buffered
Output Enable are common to all flip-flops. The eight
flip-flops will store the state of their individual D-type
inputs that meet the setup and hold time requirements
on the LOW-to-HIGH Clock (CP) transition. With the Out-
put Enable (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. Operation of the
OE input does not affect the state of the flip-flops.
Logic Symbols
IEEE/IEC
Truth Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
=
LOW-to-HIGH Transition
O
o
=
Previous O
o
before HIGH to LOW of CP
Pin Names Description
D
0
–D
7
Data Inputs
CP Clock Pulse Input
OE 3-STATE Output Enable Input
O
0
–O
7
3-STATE Outputs
Inputs Outputs
D
n
CP OE O
n
HLH
LLL
XLL O
o
XXH Z
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 3
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to
estimate propagation delays.
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 4
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Note:
1. I
O
Absolute Maximum Rating must be observed.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol Parameter Rating
V
CC
Supply Voltage –0.5V to +4.6V
V
I
DC Input Voltage –0.5V to +7.0V
V
O
DC Output Voltage
Output in 3-STATE –0.5V to +7.0V
Output in HIGH or LOW State
(1)
–0.5V to +7.0V
I
IK
DC Input Diode Current, V
I
<
GND –50mA
I
OK
DC Output Diode Current, V
O
<
GND –50mA
I
O
DC Output Current, V
O
>
V
CC
Output at HIGH State 64mA
Output at LOW State 128mA
I
CC
DC Supply Current per Supply Pin ±64mA
I
GND
DC Ground Current per Ground Pin ±128mA
T
STG
Storage Temperature –65°C to +150°C
Symbol Parameter Min Max Units
V
CC
Supply Voltage 2.7 3.6 V
V
I
Input Voltage 0 5.5 V
I
OH
HIGH-Level Output Current –32 mA
I
OL
LOW-Level Output Current 64 mA
T
A
Free-Air Operating Temperature –40 85 °C
t
/
V Input Edge Rate, V
IN
=
0.8V–2.0V, V
CC
=
3.0V 0 10 ns/V
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 5
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
DC Electrical Characteristics
Notes:
2. All typical values are at V
CC
=
3.3V, T
A
=
25°C.
3. Applies to bushold versions only (74LVTH574).
4. An external driver must source at least the specified current to switch from LOW-to-HIGH.
5. An external driver must sink at least the specified current to switch from HIGH-to-LOW.
6. This is the increase in supply current for each input that is at the specified voltage level rather than V
CC
or GND.
Symbol Parameter V
CC
(V) Conditions
T
A
=
–40°C to +85°C
UnitsMin. Typ.
(2)
Max.
V
IK
Input Clamp Diode Voltage 2.7 I
I
=
–18mA –1.2 V
V
IH
Input HIGH Voltage 2.7–3.6 V
O
0.1V or
V
O
V
CC
– 0.1V
2.0 V
V
IL
Input LOW Voltage 2.7–3.6 0.8 V
V
OH
Output HIGH Voltage 2.7–3.6 I
OH
=
–100µA V
CC
– 0.2 V
2.7 I
OH
=
–8mA 2.4
3.0 I
OH
=
–32mA 2.0
V
OL
Output LOW Voltage 2.7 I
OL
=
100µA 0.2 V
I
OL
=
24mA 0.5
3.0 I
OL
=
16mA 0.4
I
OL
=
32mA 0.5
I
OL
=
64mA 0.55
I
I(HOLD)(3)
Bushold Input Minimum
Drive
3.0 V
I
=
0.8V 75 µA
V
I
=
2.0V –75
I
I(OD)(3)
Bushold Input Over-Drive
Current to Change State
3.0
(4)
500 µA
(5)
–500
I
I
Input Current 3.6 V
I
=
5.5V 10 µA
Control Pins 3.6 V
I
= 0V or VCC ±1
Data Pins 3.6 VI = 0V –5
VI = VCC 1
IOFF Power Off Leakage Current 0 0V VI or VO 5.5V ±100 µA
IPU/PD Power up/down 3-STATE
Output Current
0–1.5 VO = 0.5V to 3.0V,
VI = GND or VCC
±100 µA
IOZL 3-STATE Output Leakage
Current
3.6 VO = 0.5V –5 µA
IOZH 3-STATE Output Leakage
Current
3.6 VO = 3.0V 5 µA
IOZH+ 3-STATE Output Leakage
Current
3.6 VCC < VO 5.5V 10 µA
ICCH Power Supply Current 3.6 Outputs HIGH 0.19 mA
ICCL Power Supply Current 3.6 Outputs LOW 5 mA
ICCZ Power Supply Current 3.6 Outputs Disabled 0.19 mA
ICCZ+Power Supply Current 3.6 VCC VO 5.5V,
Outputs Disabled
0.19 mA
ICC Increase in Power Supply
Current(6) 3.6 One Input at VCC – 0.6V,
Other Inputs at VCC or
GND
0.2 mA
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 6
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Dynamic Switching Characteristics(7)
Notes:
7. Characterized in SOIC package. Guaranteed parameter, but not tested.
8. Max number of outputs defined as (n). n–1 data inputs are driven 0V to 3V. Output under test held LOW.
AC Electrical Characteristics
Notes:
9. All typical values are at VCC = 3.3V, TA = 25°C.
10. 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 (tOSHL) or LOW-to-HIGH (tOSLH).
Capacitance(11)
Note:
11. Capacitance is measured at frequency f = 1MHz, per MIL-STD-883, Method 3012.
Symbol Parameter VCC (V)
Conditions TA = 25°C
UnitsCL = 50pF, RL = 500 Min. Typ. Max.
VOLP Quiet Output Maximum
Dynamic VOL
3.3 (8) 0.8 V
VOLV Quiet Output Minimum
Dynamic VOL
3.3 (8) –0.8 V
Symbol Parameter
TA = –40°C to +85°C
CL = 50pF, RL = 500
Units
VCC = 3.3V ± 0.3V VCC = 2.7V
Min. Typ.(9) Max. Min. Max.
fMAX Maximum Clock Frequency 150 150 MHz
tPHL Propagation Delay, CP to On1.8 4.6 1.8 5.3 ns
tPLH 1.8 4.5 1.8 5.3
tPZL Output Enable Time 1.5 5.2 1.5 6.1 ns
tPZH 1.5 4.8 1.5 5.9
tPLZ Output Disable Time 2.0 4.4 2.0 4.4 ns
tPHZ 2.0 4.8 2.0 5.1
tSSetup Time 2.0 2.4 ns
tHHold Time 0.3 0.0 ns
tWPulse Width 3.3 3.3 ns
tOSHL, tOSLH Output to Output Skew(10) 1.0 1.0 ns
Symbol Parameter Conditions Typical Units
CIN Input Capacitance VCC = Open, VI = 0V or VCC 4pF
COUT Output Capacitance VCC = 3.0V, VO = 0V or VCC 6 pF
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 7
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Physical Dimensions
Figure 1. 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
0.10 C
C
A
SEE DETAIL A
NOTES: UNLESS OTHERWISE SPECIFIED
A) THIS PACKAGE CONFORMS TO JEDEC
MS-013, VARIATION AC, ISSUE E
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS DO NOT INCLUDE MOLD
FLASH OR BURRS.
E) LANDPATTERN STANDARD: SOIC127P1030X265-20L
PIN ONE
INDICATOR
0.25
110
BC A
M
20 11
B
X 45°
8°
0°
SEATING PLANE
GAGE PLANE
DETAIL A
SCALE: 2:1
SEATING PLANE
LAND PATTERN RECOMMENDATION
F) DRAWING FILENAME: MKT-M20BREV3
0.65
1.27
2.25
9.50
13.00
12.60
11.43
7.60
7.40
10.65
10.00
0.51
0.35 1.27
2.65 MAX
0.30
0.10
0.33
0.20
0.75
0.25
(R0.10)
(R0.10)
1.27
0.40
(1.40)
0.25
D) CONFORMS TO ASME Y14.5M-1994
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 8
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Physical Dimensions (Continued)
Figure 2. 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 9
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Physical Dimensions (Continued)
Figure 3. 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 10
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs
Physical Dimensions (Continued)
Figure 4. 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT574, 74LVTH574 Rev. 1.6.0 11
TRADEMARKS
Thefollowing includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global
subsidiaries, and is not intended to be an exhaustive list of all such trademarks.
ACEx®
Build it Now
CorePLUS™
CROSSVOLT
CTL™
Current Transfer Logic™
EcoSPARK®
EZSWITCH™ *
®
Fairchild®
Fairchild Semiconductor®
FACT Quiet Series™
FACT®
FAST®
FastvCore™
FlashWriter®*
FPS™
FRFET®
Global Power ResourceSM
Green FPS™
Green FPS™e-Series™
GTO™
i-Lo
IntelliMAX™
ISOPLANAR™
MegaBuck™
MICROCOUPLER™
MicroFET™
MicroPak™
MillerDrive™
Motion-SPM™
OPTOLOGIC®
OPTOPLANAR®
®
PDP-SPM
Power220®
POWEREDGE®
Power-SPM™
PowerTrench®
Programmable Active Droop™
QFET®
QS™
QT Optoelectronics™
Quiet Series™
RapidConfigure™
SMART START™
SPM®
STEALTH™
SuperFET™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
SupreMOS™
SyncFET™®
The Power Franchise®
TinyBoost™
TinyBuck™
TinyLogic®
TINYOPTO™
TinyPower™
TinyPWM™
TinyWire™
µSerDes™
UHC®
Ultra FRFET™
UniFET™
VCX
*EZSWITCH™ and FlashWriter®are trademarks of System General Corporation, used under license by Fairchild Semiconductor.
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS
HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE
APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS
PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S
WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR
SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in a significant injury of the user.
2. A critical component in any component of a life support,
device, or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information Formative or In Design This datasheet contains the design specifications for product
development. Specifications may change in any manner without notice.
Preliminary First Production
This datasheet contains preliminary data; supplementary data will be
published at a later date. Fairchild Semiconductor reserves the right to
make changes at any time without notice to improve design.
No Identification Needed Full Production
This datasheet contains final specifications. Fairchild Semiconductor
reserves the right to make changes at any time without notice to improve
the design.
Obsolete Not In Production
This datasheet contains specifications on a product that has been
discontinued by Fairchild Semiconductor. The datasheet is printed for
reference information only.
Rev. I33
74LVT574, 74LVTH574 — Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs