TI 54ACT244

54AC244,54ACT244
54AC244/54ACT244 Octal Buffer/Line Driver with TRI-STATE Outputs
Literature Number: SNOS098B
July 29, 2011
54AC244/54ACT244
Octal Buffer/Line Driver with TRI-STATE® Outputs
General Description
Features
The 'AC/'ACT244 is an octal buffer and line driver designed
to be employed as a memory address driver, clock driver and
bus-oriented transmitter/receiver which provides improved
PC board density.
■ ICC and IOZ reduced by 50%
■ TRI-STATE outputs drive bus lines or buffer memory
■
■
■
■
Logic Symbol
address registers
Outputs source/sink 24 mA
'ACT244 has TTL-compatible inputs
Standard Microcircuit Drawing (SMD)
— 'AC244: 5962-87552
— 'ACT244: 5962-87760
54AC244 now qualified to 300Krad RHA designation, refer
to the SMD for more information
Pin Names
IEEE/IEC
Description
OE1, OE2
TRI-STATE Output Enable Inputs
I0–I7
Inputs
O0–O7
Outputs
10028201
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT™ is a trademark of Fairchild Semiconductor
© 2011 National Semiconductor Corporation
100282
100282 Version 3 Revision 1
www.national.com
Print Date/Time: 2011/07/29 21:07:23
54AC244/54ACT244 Octal Buffer/Line Driver with TRI-STATE Outputs
OBSOLETE
54AC244 • 54ACT244
Connection Diagrams
Truth Table
Inputs
Pin Assignment for DIP
and Flatpak
Outputs
OE1
In
(Pins 12, 14, 16, 18)
L
L
H
L
H
X
L
H
Z
H = HIGH Voltage Level
L = LOW Voltage Level
Inputs
In
(Pins 3, 5, 7, 9)
L
L
H
L
H
X
L
H
Z
X = Immaterial
Z = High Impedance
10028202
Pin Assignment for LCC
10028203
www.national.com
2
100282 Version 3 Revision 1
Outputs
OE2
Print Date/Time: 2011/07/29 21:07:23
Recommended Operating
Conditions
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
VI = VCC + 0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
per Output Pin (ICC or IGND)
Storage Temperature (TSTG)
Junction Temperature (TJ)
CDIP
Supply Voltage (VCC)
'AC
'ACT
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
54AC/ACT
−0.5V to +7.0V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
±50 mA
±50 mA
−65°C to +150°C
2.0V to 6.0V
4.5V to 5.5V
0V to VCC
0V to VCC
−55°C to +125°C
Minimum Input Edge Rate (ΔV/Δt)
'AC Devices
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
125 mV/ns
Minimum Input Edge Rate (ΔV/Δt)
'ACT Devices
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
125 mV/ns
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not
recommend operation of FACT™ circuits outside databook specifications.
175°C
DC Characteristics for 'AC Family Devices
54AC
Symbol
Parameter
VCC
TA =
(V)
−55°C to +125°C
Units
Conditions
Guaranteed Limits
VIH
VIL
VOH
Minimum High
3.0
2.1
Level Input
4.5
3.15
Voltage
5.5
3.85
Maximum Low
3.0
0.9
Level Input
4.5
1.35
Voltage
5.5
1.65
Minimum High
3.0
2.9
Level Output
Voltage
4.5
5.5
4.4
5.4
VOUT = 0.1V
V
or VCC − 0.1V
VOUT = 0.1V
V
or VCC − 0.1V
IOUT = −50 μA
V
(Note 2)
VIN = VIL or VIH
VOL
3.0
4.5
2.4
3.7
5.5
4.7
Maximum Low
3.0
0.1
Level Output
Voltage
4.5
5.5
0.1
0.1
V
−12 mA
−24 mA
IOH
−24 mA
IOUT = 50 μA
V
(Note 2)
VIN = VIL or VIH
3.0
4.5
IIN
Maximum Input
0.50
0.50
5.5
0.50
5.5
±1.0
V
12 mA
24 mA
IOL
24 mA
μA
VI = VCC, GND
Leakage Current
3
100282 Version 3 Revision 1
Print Date/Time: 2011/07/29 21:07:23
www.national.com
54AC244 • 54ACT244
Absolute Maximum Ratings (Note 1)
54AC244 • 54ACT244
54AC
Symbol
Parameter
VCC
TA =
(V)
−55°C to +125°C
Units
Conditions
Guaranteed Limits
IOZ
Maximum
VI (OE) = VIL, VIH
TRI-STATE
5.5
±5.0
μA
Current
IOLD
VI = VCC, VGND
VO = VCC, GND
(Note 3) Minimum
Dynamic Output
Current
5.5
50
mA
VOLD = 1.65V Max
IOHD
5.5
−50
mA
VOHD = 3.85V Min
ICC
Maximum Quiescent
5.5
80.0
μA
VIN = VCC
Supply Current
or GND
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
Note 5: ICC for 54AC @ 25°C is identical to 74AC @ 25°C.
DC Characteristics for 'ACT Family Devices
54ACT
Symbol
Parameter
VCC
TA =
(V)
−55°C to +125°C
Units
Conditions
Guaranteed Limits
VIH
VIL
VOH
Minimum High Level
4.5
2.0
Input Voltage
5.5
2.0
Maximum Low Level
4.5
0.8
Input Voltage
5.5
0.8
Minimum High Level
4.5
4.4
Output Voltage
5.5
5.4
V
VOUT = 0.1V
or VCC − 0.1V
V
VOUT = 0.1V
or VCC − 0.1V
V
IOUT = −50 μA
(Note 6)
VIN = VIL or VIH
VOL
4.5
3.70
5.5
4.70
Maximum Low Level
4.5
0.1
Output Voltage
5.5
0.1
IOH
V
−24 mA
−24 mA
V
IOUT = 50 μA
(Note 6)
VIN = VIL or VIH
4.5
0.50
5.5
0.50
V
IOL
24 mA
IIN
Maximum Input Leakage Current
5.5
±1.0
μA
VI = VCC, GND
IOZ
Maximum TRI-STATE
5.5
±5.0
μA
VI = VIL, VIH
Current
VO = VCC, GND
ICCT
Maximum ICC/Input
5.5
1.6
mA
VI = VCC − 2.1V
IOLD
5.5
50
mA
VOLD = 1.65V Max
IOHD
(Note 7) Minimum
Dynamic Output
Current
5.5
−50
mA
VOHD = 3.85V Min
ICC
Maximum Quiescent
5.5
80.0
μA
VIN = VCC
Supply Current
or GND
Note 6: All outputs loaded; thresholds on input associated with output under test.
Note 7: Maximum test duration 2.0 ms, one output loaded at a time.
Note 8: ICC for 54ACT @ 25°C is identical to 74ACT @ 25°C.
www.national.com
4
100282 Version 3 Revision 1
24 mA
Print Date/Time: 2011/07/29 21:07:23
54AC
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
VCC
TA = −55°C
(V)
(Note 9)
to +125°C
CL = 50 pF
Fig.
Units
Min
Max
Propagation Delay
3.3
1.0
12.5
Data to Output
5.0
1.0
9.5
Propagation Delay
3.3
1.0
12.0
Data to Output
5.0
1.0
9.0
Output Enable Time
3.3
1.0
11.5
5.0
1.0
9.0
3.3
1.0
13.0
5.0
1.0
10.5
3.3
1.0
12.5
5.0
1.0
10.5
3.3
1.0
13.0
5.0
1.0
11.0
Output Enable Time
Output Disable Time
Output Disable Time
No.
ns
ns
ns
ns
ns
ns
Note 9: Voltage Range 3.3 is 3.3V ±0.3V
Voltage Range 5.0 is 5.0V ±0.5V
AC Electrical Characteristics
54ACT
Symbol
tPLH
Parameter
Propagation Delay
VCC
TA = −55°C
(V)
(Note 10)
to +125°C
CL = 50 pF
Fig.
Units
Min
Max
5.0
1.0
10.0
ns
5.0
1.0
10.0
ns
No.
Data to Output
tPHL
Propagation Delay
Data to Output
tPZH
Output Enable Time
5.0
1.0
9.5
ns
tPZL
Output Enable Time
5.0
1.0
11.0
ns
tPHZ
Output Disable Time
5.0
1.0
11.0
ns
tPLZ
Output Disable Time
5.0
1.0
11.5
ns
Note 10: Voltage Range 5.0 is 5.0V ±0.5V
Capacitance
Typ
Units
CIN
Symbol
Input Capacitance
Parameter
4.5
pF
VCC = OPEN
Conditions
CPD
Power Dissipation
45.0
pF
VCC = 5.0V
Capacitance
5
100282 Version 3 Revision 1
Print Date/Time: 2011/07/29 21:07:23
www.national.com
54AC244 • 54ACT244
AC Electrical Characteristics
54AC244 • 54ACT244
Physical Dimensions inches (millimeters) unless otherwise noted
20-Terminal Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
www.national.com
6
100282 Version 3 Revision 1
Print Date/Time: 2011/07/29 21:07:23
54AC244 • 54ACT244
20-Lead Ceramic Dual-In-Line Package (D)
NS Package Number J20A
20-Lead Ceramic Flatpak (F)
NS Package Number W20A
7
100282 Version 3 Revision 1
Print Date/Time: 2011/07/29 21:07:23
www.national.com
54AC244/54ACT244 Octal Buffer/Line Driver with TRI-STATE Outputs
Notes
For more National Semiconductor product information and proven design tools, visit the following Web sites at:
www.national.com
Products
Design Support
Amplifiers
www.national.com/amplifiers
WEBENCH® Tools
www.national.com/webench
Audio
www.national.com/audio
App Notes
www.national.com/appnotes
Clock and Timing
www.national.com/timing
Reference Designs
www.national.com/refdesigns
Data Converters
www.national.com/adc
Samples
www.national.com/samples
Interface
www.national.com/interface
Eval Boards
www.national.com/evalboards
LVDS
www.national.com/lvds
Packaging
www.national.com/packaging
Power Management
www.national.com/power
Green Compliance
www.national.com/quality/green
Switching Regulators
www.national.com/switchers
Distributors
www.national.com/contacts
LDOs
www.national.com/ldo
Quality and Reliability
www.national.com/quality
LED Lighting
www.national.com/led
Feedback/Support
www.national.com/feedback
Voltage References
www.national.com/vref
Design Made Easy
www.national.com/easy
www.national.com/powerwise
Applications & Markets
www.national.com/solutions
Mil/Aero
www.national.com/milaero
PowerWise® Solutions
Serial Digital Interface (SDI) www.national.com/sdi
Temperature Sensors
www.national.com/tempsensors SolarMagic™
www.national.com/solarmagic
PLL/VCO
www.national.com/wireless
www.national.com/training
PowerWise® Design
University
THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION
(“NATIONAL”) PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY
OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE CHANGES TO
SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME WITHOUT NOTICE. NO LICENSE, WHETHER EXPRESS,
IMPLIED, ARISING BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS
DOCUMENT.
TESTING AND OTHER QUALITY CONTROLS ARE USED TO THE EXTENT NATIONAL DEEMS NECESSARY TO SUPPORT
NATIONAL’S PRODUCT WARRANTY. EXCEPT WHERE MANDATED BY GOVERNMENT REQUIREMENTS, TESTING OF ALL
PARAMETERS OF EACH PRODUCT IS NOT NECESSARILY PERFORMED. NATIONAL ASSUMES NO LIABILITY FOR
APPLICATIONS ASSISTANCE OR BUYER PRODUCT DESIGN. BUYERS ARE RESPONSIBLE FOR THEIR PRODUCTS AND
APPLICATIONS USING NATIONAL COMPONENTS. PRIOR TO USING OR DISTRIBUTING ANY PRODUCTS THAT INCLUDE
NATIONAL COMPONENTS, BUYERS SHOULD PROVIDE ADEQUATE DESIGN, TESTING AND OPERATING SAFEGUARDS.
EXCEPT AS PROVIDED IN NATIONAL’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, NATIONAL ASSUMES NO
LIABILITY WHATSOEVER, AND NATIONAL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO THE SALE
AND/OR USE OF NATIONAL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR
PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY
RIGHT.
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR
SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and
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 to the user. A critical component is any component in 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.
National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other
brand or product names may be trademarks or registered trademarks of their respective holders.
Copyright© 2011 National Semiconductor Corporation
For the most current product information visit us at www.national.com
National Semiconductor
Americas Technical
Support Center
Email: [email protected]
www.national.com Tel: 1-800-272-9959
National Semiconductor Europe
Technical Support Center
Email: [email protected]
100282 Version 3 Revision 1
National Semiconductor Asia
Pacific Technical Support Center
Email: [email protected]
Print Date/Time: 2011/07/29 21:07:24
National Semiconductor Japan
Technical Support Center
Email: [email protected]
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,
and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are
sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard
warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,
or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a
warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual
property of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied
by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive
business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional
restrictions.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all
express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not
responsible or liable for any such statements.
TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.
TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.
TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.
Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products
Applications
Audio
www.ti.com/audio
Communications and Telecom www.ti.com/communications
Amplifiers
amplifier.ti.com
Computers and Peripherals
www.ti.com/computers
Data Converters
dataconverter.ti.com
Consumer Electronics
www.ti.com/consumer-apps
DLP® Products
www.dlp.com
Energy and Lighting
www.ti.com/energy
DSP
dsp.ti.com
Industrial
www.ti.com/industrial
Clocks and Timers
www.ti.com/clocks
Medical
www.ti.com/medical
Interface
interface.ti.com
Security
www.ti.com/security
Logic
logic.ti.com
Space, Avionics and Defense
www.ti.com/space-avionics-defense
Power Mgmt
power.ti.com
Transportation and Automotive www.ti.com/automotive
Microcontrollers
microcontroller.ti.com
Video and Imaging
RFID
www.ti-rfid.com
OMAP Mobile Processors
www.ti.com/omap
Wireless Connectivity
www.ti.com/wirelessconnectivity
TI E2E Community Home Page
www.ti.com/video
e2e.ti.com
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2011, Texas Instruments Incorporated