74LVTH2244MTCX [ONSEMI]
低压八路缓冲器/线路驱动器（带3态输出）;
| 型号： | 74LVTH2244MTCX |
| 厂家： | 
ONSEMI |
| 描述： | 低压八路缓冲器/线路驱动器（带3态输出） 驱动 信息通信管理 光电二极管 逻辑集成电路 驱动器 |
| 文件： | 总11页 (文件大小：399K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
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February 2008
74LVT2244, 74LVTH2244
Low Voltage Octal Buffer/Line Driver with 3-STATE
Outputs and 25Ω Series Resistors in the Outputs
Features
General Description
■ Input and output interface capability to systems at
The LVT2244 and LVTH2244 are octal buffers and line
drivers designed to be employed as memory address
drivers, clock drivers and bus oriented transmitters or
receivers which provides improved PC board density.
The equivalent 25Ω-Series resistors helps reduce output
overshoot and undershoot.
5V V
CC
■ Equivalent 25Ω-Series resistors on outputs
■ Bushold data inputs eliminate the need for external
pull-up resistors to hold unused inputs (74LVTH2244),
also available without bushold feature (74LVT2244)
The LVTH2244 data inputs include bushold, eliminating
the need for external pull-up resistors to hold unused
inputs.
■ Live insertion/extraction permitted
■ Power Up/Down high impedance provides glitch-free
bus loading
■ Outputs source/sink –12mA/+12mA
■ Latch-up performance exceeds 500mA
■ ESD performance:
These octal buffers and line drivers are designed for low-
voltage (3.3V) V applications, but with the capability to
CC
provide a TTL interface to a 5V environment. The
LVT2244 and LVTH2244 are fabricated with an
advanced BiCMOS technology to achieve high speed
operation similar to 5V ABT while maintaining low power
dissipation.
– Human-body model > 2000V
– Machine model > 200V
– Charged-device model > 1000V
Ordering Information
Package
Order Number
74LVT2244WM
74LVT2244SJ
Number
Package Description
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
M20D
74LVT2244MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
74LVTH2244WM
74LVTH2244SJ
74LVTH2244MTC
M20B
M20D
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
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.
©1999 Fairchild Semiconductor Corporation
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
Connection Diagram
Logic Symbol
IEEE/IEC
Pin Description
Pin Names
Description
OE , OE
3-STATE Output Enable Inputs
1
2
I –I
Inputs
0
7
Truth Tables
O –O
Outputs
0
7
Inputs
Outputs
OE
L
I
(Pins 12, 14, 16, 18)
1
n
L
L
H
Z
L
H
X
H
Inputs
Outputs
OE
L
I
(Pins 3, 5, 7, 9)
2
n
L
L
H
Z
L
H
X
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
©1999 Fairchild Semiconductor Corporation
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
2
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.
Symbol
Parameter
Rating
V
Supply Voltage
–0.5V to +4.6V
CC
V
DC Input Voltage
DC Output Voltage
Output in 3-STATE
–0.5V to +7.0V
I
V
O
–0.5V to +7.0V
–0.5V to +7.0V
–50mA
(1)
Output in HIGH or LOW State
I
DC Input Diode Current, V < GND
I
IK
I
DC Output Diode Current, V < GND
–50mA
OK
O
I
DC Output Current, V > V
O
O
CC
Output at HIGH State
Output at LOW State
64mA
128mA
I
DC Supply Current per Supply Pin
DC Ground Current per Ground Pin
Storage Temperature
64mA
CC
I
128mA
GND
T
–65°C to +150°C
STG
Note:
1. I Absolute Maximum Rating must be observed.
O
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
Min.
2.7
0
Max.
3.6
5.5
–12
12
Units
V
V
Supply Voltage
Input Voltage
CC
V
V
I
I
HIGH-Level Output Current
LOW-Level Output Current
Free-Air Operating Temperature
mA
mA
°C
OH
I
OL
T
–40
0
85
A
∆t/∆V
Input Edge Rate, V = 0.8V–2.0V, V = 3.0V
10
ns/V
IN
CC
©1999 Fairchild Semiconductor Corporation
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
3
DC Electrical Characteristics
TA = –40°C to +85°C
Symbol
Parameter
Input Clamp Diode Voltage
Input HIGH Voltage
VCC (V)
2.7
Conditions
Min.
Typ.(2) Max. Units
V
V
I = –18mA
–1.2
0.8
V
V
V
V
IK
IH
I
2.7–3.6
2.7–3.6
2.7–3.6
3.0
V
V
≤ 0.1V or
2.0
O
O
≥ V – 0.1V
CC
V
Input LOW Voltage
IL
V
Output HIGH Voltage
I
I
I
I
= –100µA
= –12mA
= 100µA
= 12mA
V
– 0.2
CC
OH
OH
OH
OL
OL
2.0
V
Output LOW Voltage
2.7
0.2
0.8
V
OL
3.0
(3)
I
Bushold Input Minimum Drive
3.0
V = 0.8V
75
–75
500
–500
µA
µA
µA
I(HOLD)
I
V = 2.0V
I
(3)
(4)
I
Bushold Input Over-Drive Current to
Change State
3.0
I(OD)
(5)
I
Input Current
Control Pins
Data Pins
3.6
3.6
3.6
V = 5.5V
10
1
I
I
V = 0V or V
I
CC
V = 0V
–5
1
I
V = V
I
CC
I
Power Off Leakage Current
0
0V ≤ V or V ≤ 5.5V
100
100
µA
µA
OFF
I
O
I
Power up/down 3-STATE
Output Current
0–1.5
V = 0.5V to 3.0V,
O
PU/PD
V = GND or V
I
CC
I
3-STATE Output Leakage Current
3-STATE Output Leakage Current
3-STATE Output Leakage Current
Power Supply Current
3.6
3.6
3.6
3.6
3.6
3.6
3.6
V
V
V
= 0.5V
= 3.0V
–5
5
µA
µA
OZL
O
I
OZH
O
I
+
< V ≤ 5.5V
10
µA
OZH
CC
O
I
Outputs HIGH
Outputs LOW
0.19
5
mA
mA
mA
mA
CCH
I
Power Supply Current
CCL
CCZ
I
Power Supply Current
Outputs Disabled
0.19
0.19
I
+
Power Supply Current
V
≤ V ≤ 5.5V,
CC O
CCZ
Outputs Disabled
(6)
∆I
Increase in Power Supply Current
3.6
One Input at
0.2
mA
CC
V
– 0.6V, Other
CC
Inputs at V or GND
CC
Notes:
2. All typical values are at V = 3.3V, T = 25°C.
CC
A
3. Applies to bushold versions only (74LVTH2244).
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 or GND.
CC
©1999 Fairchild Semiconductor Corporation
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
4
(7)
Dynamic Switching Characteristics
Conditions
T = 25°C
A
Symbol
Parameter
V
CC
(V) C = 50pF, R = 500Ω Min. Typ. Max. Units
L
L
(8)
(8)
V
Quiet Output Maximum
3.3
0.8
V
V
OLP
Dynamic V
OL
V
Quiet Output Minimum
Dynamic V
3.3
–0.8
OLV
OL
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
T = –40°C to +85°C,
A
C = 50pF, R = 500Ω
L
L
V
= 3.3V 0.3V
V
= 2.7V
CC
CC
(9)
Symbol
Parameter
Min.
1.0
1.0
1.0
1.1
1.9
1.8
Typ.
Max.
Min.
1.0
1.0
1.0
1.1
1.9
1.8
Max.
Units
t
t
Propagation Delay Data to Output
4.4
4.1
5.9
5.5
6.1
4.5
1.0
5.3
4.4
7.7
6.2
6.8
4.5
1.0
ns
PLH
PHL
PZH
t
Output Enable Time
Output Disable Time
ns
ns
ns
t
PZL
PHZ
t
t
PLZ
(10)
t
, t
Output to Output Skew
OSHL OSLH
Notes:
9. All typical values are at V = 3.3V, T = 25°C.
CC
A
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 (t
) or LOW-to-HIGH (t
).
OSHL
OSLH
(11)
Capacitance
Symbol
Parameter
Conditions
Typical
Units
pF
C
Input Capacitance
Output Capacitance
V
V
= 0V, V = 0V or V
CC
3
6
IN
CC
I
C
= 3.0V, V = 0V or V
CC
pF
OUT
CC
O
Note:
11. Capacitance is measured at frequency f = 1MHz, per MIL-STD-883B, Method 3012.
©1999 Fairchild Semiconductor Corporation
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
5
Physical Dimensions
13.00
12.60
A
11.43
20
11
B
9.50
10.65 7.60
10.00 7.40
2.25
1
PIN ONE
INDICATOR
10
0.65
0.51
0.35
1.27
1.27
M
0.25
C B A
LAND PATTERN RECOMMENDATION
SEE DETAIL A
2.65 MAX
0.33
0.20
C
0.10
C
0.30
0.10
SEATING PLANE
0.75
0.25
X 45°
NOTES: UNLESS OTHERWISE SPECIFIED
(R0.10)
(R0.10)
A) THIS PACKAGE CONFORMS TO JEDEC
MS-013, VARIATION AC, ISSUE E
GAGE PLANE
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS DO NOT INCLUDE MOLD
FLASH OR BURRS.
0.25
8°
0°
D) CONFORMS TO ASME Y14.5M-1994
1.27
0.40
SEATING PLANE
E) LANDPATTERN STANDARD: SOIC127P1030X265-20L
F) DRAWING FILENAME: MKT-M20BREV3
(1.40)
DETAIL A
SCALE: 2:1
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/
©1999 Fairchild Semiconductor Corporation
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
6
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
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
7
Physical Dimensions (Continued)
Figure 3. 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
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
8
TRADEMARKS
The following 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®
PDP-SPM™
SupreMOS™
FPS™
Power220®
SyncFET™
Build it Now™
CorePLUS™
CROSSVOLT™
CTL™
Current Transfer Logic™
EcoSPARK®
EZSWITCH™ *
™
FRFET®
POWEREDGE®
Power-SPM™
PowerTrench®
Programmable Active Droop™
QFET®
®
Global Power ResourceSM
Green FPS™
Green FPS™e-Series™
GTO™
i-Lo™
IntelliMAX™
ISOPLANAR™
MegaBuck™
MICROCOUPLER™
MicroFET™
The Power Franchise®
TinyBoost™
TinyBuck™
TinyLogic®
TINYOPTO™
TinyPower™
TinyPWM™
TinyWire™
µSerDes™
UHC®
QS™
QT Optoelectronics™
Quiet Series™
RapidConfigure™
SMART START™
SPM®
STEALTH™
SuperFET™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
®
Fairchild®
Fairchild Semiconductor®
FACT Quiet Series™
FACT®
MicroPak™
MillerDrive™
Motion-SPM™
OPTOLOGIC®
FAST®
Ultra FRFET™
UniFET™
VCX™
OPTOPLANAR®
FastvCore™
®
FlashWriter® *
* 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 2. A critical component in any component of a life support,
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.
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
This datasheet contains the design specifications for product
development. Specifications may change in any manner without notice.
Advance Information
Formative or In Design
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.
Preliminary
First Production
Full Production
Not In Production
This datasheet contains final specifications. Fairchild Semiconductor
reserves the right to make changes at any time without notice to improve
the design.
No Identification Needed
Obsolete
This datasheet contains specifications on a product that has been
discontinued by Fairchild Semiconductor. The datasheet is printed for
reference information only.
Rev. I33
©1999 Fairchild Semiconductor Corporation
74LVT2244, 74LVTH2244 Rev. 1.5.0
www.fairchildsemi.com
9
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ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
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Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
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相关型号：
74LVTH2244WMX
LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, 0.300 INCH, MS-013, SOIC-20
ROCHESTER
74LVTH2245
Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25ヘ Series Resistors in the B Port Outputs
FAIRCHILD
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